create dir for old kernel patches

svn path=/; revision=534

3 files changed, 20358 insertions, 0 deletions

diff --git a/vserver-sources/old/2.0.1-r2/4910_vs2.0.1-2.6.15.patch b/vserver-sources/old/2.0.1-r2/4910_vs2.0.1-2.6.15.patch
new file mode 100644
index 0000000..0b8d848
--- /dev/null
+++ b/vserver-sources/old/2.0.1-r2/4910_vs2.0.1-2.6.15.patch
@@ -0,0 +1,20310 @@
+Index: vserver-sources-2.0.1_2.6.15/Documentation/vserver/debug.txt
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/Documentation/vserver/debug.txt
+@@ -0,0 +1,106 @@
++
++debug_cvirt:
++
++ 2   4	"vx_map_tgid: %p/%llx: %d -> %d"
++	"vx_rmap_tgid: %p/%llx: %d -> %d"
++
++debug_dlim:
++
++ 0   1	"ALLOC (%p,#%d)%c inode (%d)"
++	"FREE  (%p,#%d)%c inode"
++ 1   2	"ALLOC (%p,#%d)%c %lld bytes (%d)"
++	"FREE  (%p,#%d)%c %lld bytes"
++ 2   4	"ADJUST: %lld,%lld on %d,%d [mult=%d]"
++ 3   8	"ext3_has_free_blocks(%p): %u<%u+1, %c, %u!=%u r=%d"
++	"ext3_has_free_blocks(%p): free=%u, root=%u"
++	"rcu_free_dl_info(%p)"
++ 4  10	"alloc_dl_info(%p,%d) = %p"
++	"dealloc_dl_info(%p)"
++	"get_dl_info(%p[#%d.%d])"
++	"put_dl_info(%p[#%d.%d])"
++ 5  20	"alloc_dl_info(%p,%d)*"
++ 6  40	"__hash_dl_info: %p[#%d]"
++	"__unhash_dl_info: %p[#%d]"
++ 7  80	"locate_dl_info(%p,#%d) = %p"
++
++debug_net:
++
++ 2   4	"nx_addr_conflict(%p,%p) %d.%d,%d.%d"
++ 3   8	"inet_bind(%p) %d.%d.%d.%d, %d.%d.%d.%d, %d.%d.%d.%d"
++	"inet_bind(%p)* %p,%p;%lx %d.%d.%d.%d"
++ 4  10	"ip_route_connect(%p) %p,%p;%lx"
++ 5  20	"__addr_in_socket(%p,%d.%d.%d.%d) %p:%d.%d.%d.%d %p;%lx"
++ 6  40	"sk,egf: %p [#%d] (from %d)"
++	"sk,egn: %p [#%d] (from %d)"
++	"sk,req: %p [#%d] (from %d)"
++	"sk: %p [#%d] (from %d)"
++	"tw: %p [#%d] (from %d)"
++ 7  80	"__sock_recvmsg: %p[%p,%p,%p;%d]:%d/%d"
++	"__sock_sendmsg: %p[%p,%p,%p;%d]:%d/%d"
++
++debug_nid:
++
++ 0   1	"__lookup_nx_info(#%u): %p[#%u]"
++	"alloc_nx_info(%d) = %p"
++	"create_nx_info(%d) (dynamic rejected)"
++	"create_nx_info(%d) = %p (already there)"
++	"create_nx_info(%d) = %p (new)"
++	"dealloc_nx_info(%p)"
++ 1   2	"alloc_nx_info(%d)*"
++	"create_nx_info(%d)*"
++ 2   4	"get_nx_info(%p[#%d.%d])"
++	"put_nx_info(%p[#%d.%d])"
++ 3   8	"claim_nx_info(%p[#%d.%d.%d]) %p"
++	"clr_nx_info(%p[#%d.%d])"
++	"init_nx_info(%p[#%d.%d])"
++	"release_nx_info(%p[#%d.%d.%d]) %p"
++	"set_nx_info(%p[#%d.%d])"
++ 4  10	"__hash_nx_info: %p[#%d]"
++	"__nx_dynamic_id: [#%d]"
++	"__unhash_nx_info: %p[#%d]"
++ 5  20	"moved task %p into nxi:%p[#%d]"
++	"nx_migrate_task(%p,%p[#%d.%d.%d])"
++	"task_get_nx_info(%p)"
++
++debug_switch:
++
++ 0   1	"vc: VCMD_%02d_%d[%d], %d,%p,%d"
++ 1   2	"vc: VCMD_%02d_%d[%d] = %08lx(%ld)"
++ 4  10	"%s: (%s %s) returned %s with %d"
++
++debug_xid:
++
++ 0   1	"__lookup_vx_info(#%u): %p[#%u]"
++	"alloc_vx_info(%d) = %p"
++	"alloc_vx_info(%d)*"
++	"create_vx_info(%d) (dynamic rejected)"
++	"create_vx_info(%d) = %p (already there)"
++	"create_vx_info(%d) = %p (new)"
++	"dealloc_vx_info(%p)"
++ 1   2	"create_vx_info(%d)*"
++ 2   4	"get_vx_info(%p[#%d.%d])"
++	"put_vx_info(%p[#%d.%d])"
++ 3   8	"claim_vx_info(%p[#%d.%d.%d]) %p"
++	"clr_vx_info(%p[#%d.%d])"
++	"init_vx_info(%p[#%d.%d])"
++	"release_vx_info(%p[#%d.%d.%d]) %p"
++	"set_vx_info(%p[#%d.%d])"
++ 4  10	"__hash_vx_info: %p[#%d]"
++	"__unhash_vx_info: %p[#%d]"
++	"__vx_dynamic_id: [#%d]"
++ 5  20	"moved task %p into vxi:%p[#%d]"
++	"task_get_vx_info(%p)"
++	"vx_migrate_task(%p,%p[#%d.%d])"
++ 6  40	"vx_set_init(%p[#%d],%p[#%d,%d,%d])"
++ 7  80	"vx_parse_xid(»%s«): %d:#%d"
++	"vx_propagate_xid(%p[#%lu.%d]): %d,%d"
++
++
++debug_limit:
++
++ n 2^n	"vx_acc_cres[%5d,%s,%2d]: %5d%s"
++	"vx_cres_avail[%5d,%s,%2d]: %5ld > %5d + %5d"
++
++ m 2^m	"vx_acc_page[%5d,%s,%2d]: %5d%s"
++	"vx_acc_pages[%5d,%s,%2d]: %5d += %5d"
++	"vx_pages_avail[%5d,%s,%2d]: %5ld > %5d + %5d"
+Index: vserver-sources-2.0.1_2.6.15/Makefile
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/Makefile
++++ vserver-sources-2.0.1_2.6.15/Makefile
+@@ -1,7 +1,7 @@
+ VERSION = 2
+ PATCHLEVEL = 6
+ SUBLEVEL = 15
+-EXTRAVERSION =
++EXTRAVERSION = -vs2.0.1-gentoo-r3
+ NAME=Sliding Snow Leopard
+ 
+ # *DOCUMENTATION*
+Index: vserver-sources-2.0.1_2.6.15/arch/alpha/Kconfig
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/alpha/Kconfig
++++ vserver-sources-2.0.1_2.6.15/arch/alpha/Kconfig
+@@ -635,6 +635,8 @@ source "arch/alpha/oprofile/Kconfig"
+ 
+ source "arch/alpha/Kconfig.debug"
+ 
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+ 
+ source "crypto/Kconfig"
+Index: vserver-sources-2.0.1_2.6.15/arch/alpha/kernel/entry.S
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/alpha/kernel/entry.S
++++ vserver-sources-2.0.1_2.6.15/arch/alpha/kernel/entry.S
+@@ -874,22 +874,15 @@ sys_getxgid:
+ 	.globl	sys_getxpid
+ 	.ent	sys_getxpid
+ sys_getxpid:
++	lda	$sp, -16($sp)
++	stq	$26, 0($sp)
+ 	.prologue 0
+-	ldq	$2, TI_TASK($8)
+ 
+-	/* See linux/kernel/timer.c sys_getppid for discussion
+-	   about this loop.  */
+-	ldq	$3, TASK_REAL_PARENT($2)
+-1:	ldl	$1, TASK_TGID($3)
+-#ifdef CONFIG_SMP
+-	mov	$3, $4
+-	mb
+-	ldq	$3, TASK_REAL_PARENT($2)
+-	cmpeq	$3, $4, $4
+-	beq	$4, 1b
+-#endif
+-	stq	$1, 80($sp)
+-	ldl	$0, TASK_TGID($2)
++	lda	$16, 96($sp)
++	jsr	$26, do_getxpid
++	ldq	$26, 0($sp)
++
++	lda	$sp, 16($sp)
+ 	ret
+ .end sys_getxpid
+ 
+Index: vserver-sources-2.0.1_2.6.15/arch/alpha/kernel/ptrace.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/alpha/kernel/ptrace.c
++++ vserver-sources-2.0.1_2.6.15/arch/alpha/kernel/ptrace.c
+@@ -289,6 +289,8 @@ do_sys_ptrace(long request, long pid, lo
+ 	read_unlock(&tasklist_lock);
+ 	if (!child)
+ 		goto out_notsk;
++	if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT))
++		goto out;
+ 
+ 	if (request == PTRACE_ATTACH) {
+ 		ret = ptrace_attach(child);
+Index: vserver-sources-2.0.1_2.6.15/arch/alpha/kernel/systbls.S
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/alpha/kernel/systbls.S
++++ vserver-sources-2.0.1_2.6.15/arch/alpha/kernel/systbls.S
+@@ -447,7 +447,7 @@ sys_call_table:
+ 	.quad sys_stat64			/* 425 */
+ 	.quad sys_lstat64
+ 	.quad sys_fstat64
+-	.quad sys_ni_syscall			/* sys_vserver */
++	.quad sys_vserver			/* sys_vserver */
+ 	.quad sys_ni_syscall			/* sys_mbind */
+ 	.quad sys_ni_syscall			/* sys_get_mempolicy */
+ 	.quad sys_ni_syscall			/* sys_set_mempolicy */
+Index: vserver-sources-2.0.1_2.6.15/arch/alpha/mm/init.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/alpha/mm/init.c
++++ vserver-sources-2.0.1_2.6.15/arch/alpha/mm/init.c
+@@ -20,6 +20,7 @@
+ #include <linux/init.h>
+ #include <linux/bootmem.h> /* max_low_pfn */
+ #include <linux/vmalloc.h>
++#include <linux/pagemap.h>
+ 
+ #include <asm/system.h>
+ #include <asm/uaccess.h>
+Index: vserver-sources-2.0.1_2.6.15/arch/arm/Kconfig
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/arm/Kconfig
++++ vserver-sources-2.0.1_2.6.15/arch/arm/Kconfig
+@@ -757,6 +757,8 @@ source "arch/arm/oprofile/Kconfig"
+ 
+ source "arch/arm/Kconfig.debug"
+ 
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+ 
+ source "crypto/Kconfig"
+Index: vserver-sources-2.0.1_2.6.15/arch/arm/kernel/calls.S
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/arm/kernel/calls.S
++++ vserver-sources-2.0.1_2.6.15/arch/arm/kernel/calls.S
+@@ -327,7 +327,7 @@ __syscall_start:
+ /* 310 */	.long	sys_request_key
+ 		.long	sys_keyctl
+ 		.long	sys_semtimedop
+-/* vserver */	.long	sys_ni_syscall
++		.long	sys_vserver
+ 		.long	sys_ioprio_set
+ /* 315 */	.long	sys_ioprio_get
+ 		.long	sys_inotify_init
+Index: vserver-sources-2.0.1_2.6.15/arch/arm26/Kconfig
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/arm26/Kconfig
++++ vserver-sources-2.0.1_2.6.15/arch/arm26/Kconfig
+@@ -232,6 +232,8 @@ source "drivers/usb/Kconfig"
+ 
+ source "arch/arm26/Kconfig.debug"
+ 
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+ 
+ source "crypto/Kconfig"
+Index: vserver-sources-2.0.1_2.6.15/arch/arm26/kernel/calls.S
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/arm26/kernel/calls.S
++++ vserver-sources-2.0.1_2.6.15/arch/arm26/kernel/calls.S
+@@ -257,6 +257,11 @@ __syscall_start:
+ 		.long	sys_lremovexattr
+ 		.long	sys_fremovexattr
+ 		.long	sys_tkill
++
++		.rept	313 - (. - __syscall_start) / 4
++			.long	sys_ni_syscall
++		.endr
++		.long	sys_vserver	/* 313 */
+ __syscall_end:
+ 
+ 		.rept	NR_syscalls - (__syscall_end - __syscall_start) / 4
+Index: vserver-sources-2.0.1_2.6.15/arch/cris/Kconfig
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/cris/Kconfig
++++ vserver-sources-2.0.1_2.6.15/arch/cris/Kconfig
+@@ -177,6 +177,8 @@ source "drivers/usb/Kconfig"
+ 
+ source "arch/cris/Kconfig.debug"
+ 
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+ 
+ source "crypto/Kconfig"
+Index: vserver-sources-2.0.1_2.6.15/arch/h8300/Kconfig
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/h8300/Kconfig
++++ vserver-sources-2.0.1_2.6.15/arch/h8300/Kconfig
+@@ -191,6 +191,8 @@ source "fs/Kconfig"
+ 
+ source "arch/h8300/Kconfig.debug"
+ 
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+ 
+ source "crypto/Kconfig"
+Index: vserver-sources-2.0.1_2.6.15/arch/i386/Kconfig
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/i386/Kconfig
++++ vserver-sources-2.0.1_2.6.15/arch/i386/Kconfig
+@@ -448,6 +448,46 @@ config HIGHMEM64G
+ 
+ endchoice
+ 
++choice
++	prompt "Memory Split User Space"
++	default SPLIT_3GB
++	help
++	  A different Userspace/Kernel split allows you to
++	  utilize up to alsmost 3GB of RAM without the requirement
++	  for HIGHMEM. It also increases the available lowmem.
++
++config SPLIT_3GB
++	bool "3.0GB/1.0GB Kernel (Default)"
++	help
++	  This is the default split of 3GB userspace to 1GB kernel
++	  space, which will result in about 860MB of lowmem.
++
++config SPLIT_25GB
++	bool "2.5GB/1.5GB Kernel"
++	help
++	  This split provides 2.5GB userspace and 1.5GB kernel
++	  space, which will result in about 1370MB of lowmem.
++
++config SPLIT_2GB
++	bool "2.0GB/2.0GB Kernel"
++	help
++	  This split provides 2GB userspace and 2GB kernel
++	  space, which will result in about 1880MB of lowmem.
++
++config SPLIT_15GB
++	bool "1.5GB/2.5GB Kernel"
++	help
++	  This split provides 1.5GB userspace and 2.5GB kernel
++	  space, which will result in about 2390MB of lowmem.
++
++config SPLIT_1GB
++	bool "1.0GB/3.0GB Kernel"
++	help
++	  This split provides 1GB userspace and 3GB kernel
++	  space, which will result in about 2900MB of lowmem.
++
++endchoice
++
+ config HIGHMEM
+ 	bool
+ 	depends on HIGHMEM64G || HIGHMEM4G
+@@ -1014,6 +1054,8 @@ endmenu
+ 
+ source "arch/i386/Kconfig.debug"
+ 
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+ 
+ source "crypto/Kconfig"
+Index: vserver-sources-2.0.1_2.6.15/arch/i386/boot/compressed/misc.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/i386/boot/compressed/misc.c
++++ vserver-sources-2.0.1_2.6.15/arch/i386/boot/compressed/misc.c
+@@ -309,7 +309,7 @@ static void setup_normal_output_buffer(v
+ #else
+ 	if ((RM_ALT_MEM_K > RM_EXT_MEM_K ? RM_ALT_MEM_K : RM_EXT_MEM_K) < 1024) error("Less than 2MB of memory");
+ #endif
+-	output_data = (char *)__PHYSICAL_START; /* Normally Points to 1M */
++	output_data = (char *)PHYSICAL_START; /* Normally Points to 1M */
+ 	free_mem_end_ptr = (long)real_mode;
+ }
+ 
+@@ -334,8 +334,8 @@ static void setup_output_buffer_if_we_ru
+ 	low_buffer_size = low_buffer_end - LOW_BUFFER_START;
+ 	high_loaded = 1;
+ 	free_mem_end_ptr = (long)high_buffer_start;
+-	if ( (__PHYSICAL_START + low_buffer_size) > ((ulg)high_buffer_start)) {
+-		high_buffer_start = (uch *)(__PHYSICAL_START + low_buffer_size);
++	if ((PHYSICAL_START + low_buffer_size) > ((ulg)high_buffer_start)) {
++		high_buffer_start = (uch *)(PHYSICAL_START + low_buffer_size);
+ 		mv->hcount = 0; /* say: we need not to move high_buffer */
+ 	}
+ 	else mv->hcount = -1;
+Index: vserver-sources-2.0.1_2.6.15/arch/i386/kernel/setup.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/i386/kernel/setup.c
++++ vserver-sources-2.0.1_2.6.15/arch/i386/kernel/setup.c
+@@ -1184,8 +1184,8 @@ void __init setup_bootmem_allocator(void
+ 	 * the (very unlikely) case of us accidentally initializing the
+ 	 * bootmem allocator with an invalid RAM area.
+ 	 */
+-	reserve_bootmem(__PHYSICAL_START, (PFN_PHYS(min_low_pfn) +
+-			 bootmap_size + PAGE_SIZE-1) - (__PHYSICAL_START));
++	reserve_bootmem(PHYSICAL_START, (PFN_PHYS(min_low_pfn) +
++			 bootmap_size + PAGE_SIZE-1) - (PHYSICAL_START));
+ 
+ 	/*
+ 	 * reserve physical page 0 - it's a special BIOS page on many boxes,
+Index: vserver-sources-2.0.1_2.6.15/arch/i386/kernel/sys_i386.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/i386/kernel/sys_i386.c
++++ vserver-sources-2.0.1_2.6.15/arch/i386/kernel/sys_i386.c
+@@ -19,6 +19,7 @@
+ #include <linux/mman.h>
+ #include <linux/file.h>
+ #include <linux/utsname.h>
++#include <linux/vs_cvirt.h>
+ 
+ #include <asm/uaccess.h>
+ #include <asm/ipc.h>
+@@ -217,7 +218,7 @@ asmlinkage int sys_uname(struct old_utsn
+ 	if (!name)
+ 		return -EFAULT;
+ 	down_read(&uts_sem);
+-	err=copy_to_user(name, &system_utsname, sizeof (*name));
++	err=copy_to_user(name, vx_new_utsname(), sizeof (*name));
+ 	up_read(&uts_sem);
+ 	return err?-EFAULT:0;
+ }
+@@ -225,6 +226,7 @@ asmlinkage int sys_uname(struct old_utsn
+ asmlinkage int sys_olduname(struct oldold_utsname __user * name)
+ {
+ 	int error;
++	struct new_utsname *ptr;
+ 
+ 	if (!name)
+ 		return -EFAULT;
+@@ -233,15 +235,16 @@ asmlinkage int sys_olduname(struct oldol
+   
+   	down_read(&uts_sem);
+ 	
+-	error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN);
++	ptr = vx_new_utsname();
++	error = __copy_to_user(&name->sysname,ptr->sysname,__OLD_UTS_LEN);
+ 	error |= __put_user(0,name->sysname+__OLD_UTS_LEN);
+-	error |= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN);
++	error |= __copy_to_user(&name->nodename,ptr->nodename,__OLD_UTS_LEN);
+ 	error |= __put_user(0,name->nodename+__OLD_UTS_LEN);
+-	error |= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN);
++	error |= __copy_to_user(&name->release,ptr->release,__OLD_UTS_LEN);
+ 	error |= __put_user(0,name->release+__OLD_UTS_LEN);
+-	error |= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN);
++	error |= __copy_to_user(&name->version,ptr->version,__OLD_UTS_LEN);
+ 	error |= __put_user(0,name->version+__OLD_UTS_LEN);
+-	error |= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN);
++	error |= __copy_to_user(&name->machine,ptr->machine,__OLD_UTS_LEN);
+ 	error |= __put_user(0,name->machine+__OLD_UTS_LEN);
+ 	
+ 	up_read(&uts_sem);
+Index: vserver-sources-2.0.1_2.6.15/arch/i386/kernel/syscall_table.S
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/i386/kernel/syscall_table.S
++++ vserver-sources-2.0.1_2.6.15/arch/i386/kernel/syscall_table.S
+@@ -273,7 +273,7 @@ ENTRY(sys_call_table)
+ 	.long sys_tgkill	/* 270 */
+ 	.long sys_utimes
+  	.long sys_fadvise64_64
+-	.long sys_ni_syscall	/* sys_vserver */
++	.long sys_vserver
+ 	.long sys_mbind
+ 	.long sys_get_mempolicy
+ 	.long sys_set_mempolicy
+Index: vserver-sources-2.0.1_2.6.15/arch/i386/kernel/traps.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/i386/kernel/traps.c
++++ vserver-sources-2.0.1_2.6.15/arch/i386/kernel/traps.c
+@@ -53,6 +53,7 @@
+ #include <asm/kdebug.h>
+ 
+ #include <linux/module.h>
++#include <linux/vserver/debug.h>
+ 
+ #include "mach_traps.h"
+ 
+@@ -307,6 +308,8 @@ void die(const char * str, struct pt_reg
+ 	};
+ 	static int die_counter;
+ 
++	vxh_throw_oops();
++
+ 	if (die.lock_owner != raw_smp_processor_id()) {
+ 		console_verbose();
+ 		spin_lock_irq(&die.lock);
+@@ -333,8 +336,9 @@ void die(const char * str, struct pt_reg
+ #endif
+ 		if (nl)
+ 			printk("\n");
+-	notify_die(DIE_OOPS, (char *)str, regs, err, 255, SIGSEGV);
++		notify_die(DIE_OOPS, (char *)str, regs, err, 255, SIGSEGV);
+ 		show_registers(regs);
++		vxh_dump_history();
+   	} else
+ 		printk(KERN_ERR "Recursive die() failure, output suppressed\n");
+ 
+Index: vserver-sources-2.0.1_2.6.15/arch/ia64/Kconfig
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/ia64/Kconfig
++++ vserver-sources-2.0.1_2.6.15/arch/ia64/Kconfig
+@@ -461,6 +461,8 @@ endmenu
+ 
+ source "arch/ia64/Kconfig.debug"
+ 
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+ 
+ source "crypto/Kconfig"
+Index: vserver-sources-2.0.1_2.6.15/arch/ia64/ia32/binfmt_elf32.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/ia64/ia32/binfmt_elf32.c
++++ vserver-sources-2.0.1_2.6.15/arch/ia64/ia32/binfmt_elf32.c
+@@ -199,7 +199,7 @@ ia64_elf32_init (struct pt_regs *regs)
+ int
+ ia32_setup_arg_pages (struct linux_binprm *bprm, int executable_stack)
+ {
+-	unsigned long stack_base;
++	unsigned long stack_base, grow;
+ 	struct vm_area_struct *mpnt;
+ 	struct mm_struct *mm = current->mm;
+ 	int i, ret;
+@@ -236,7 +236,8 @@ ia32_setup_arg_pages (struct linux_binpr
+ 			kmem_cache_free(vm_area_cachep, mpnt);
+ 			return ret;
+ 		}
+-		current->mm->stack_vm = current->mm->total_vm = vma_pages(mpnt);
++		vx_vmpages_sub(current->mm, current->mm->total_vm - vma_pages(mpnt));
++		current->mm->stack_vm = current->mm->total_vm;
+ 	}
+ 
+ 	for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
+Index: vserver-sources-2.0.1_2.6.15/arch/ia64/ia32/ia32_entry.S
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/ia64/ia32/ia32_entry.S
++++ vserver-sources-2.0.1_2.6.15/arch/ia64/ia32/ia32_entry.S
+@@ -483,7 +483,7 @@ ia32_syscall_table:
+  	data8 sys_tgkill	/* 270 */
+  	data8 compat_sys_utimes
+  	data8 sys32_fadvise64_64
+- 	data8 sys_ni_syscall
++	data8 sys32_vserver
+   	data8 sys_ni_syscall
+  	data8 sys_ni_syscall	/* 275 */
+   	data8 sys_ni_syscall
+Index: vserver-sources-2.0.1_2.6.15/arch/ia64/kernel/entry.S
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/ia64/kernel/entry.S
++++ vserver-sources-2.0.1_2.6.15/arch/ia64/kernel/entry.S
+@@ -1589,7 +1589,7 @@ sys_call_table:
+ 	data8 sys_mq_notify
+ 	data8 sys_mq_getsetattr
+ 	data8 sys_ni_syscall			// reserved for kexec_load
+-	data8 sys_ni_syscall			// reserved for vserver
++	data8 sys_vserver
+ 	data8 sys_waitid			// 1270
+ 	data8 sys_add_key
+ 	data8 sys_request_key
+Index: vserver-sources-2.0.1_2.6.15/arch/ia64/kernel/perfmon.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/ia64/kernel/perfmon.c
++++ vserver-sources-2.0.1_2.6.15/arch/ia64/kernel/perfmon.c
+@@ -39,6 +39,8 @@
+ #include <linux/mount.h>
+ #include <linux/bitops.h>
+ #include <linux/rcupdate.h>
++#include <linux/vs_memory.h>
++#include <linux/vs_cvirt.h>
+ 
+ #include <asm/errno.h>
+ #include <asm/intrinsics.h>
+@@ -2351,7 +2353,7 @@ pfm_smpl_buffer_alloc(struct task_struct
+ 	 */
+ 	insert_vm_struct(mm, vma);
+ 
+-	mm->total_vm  += size >> PAGE_SHIFT;
++	vx_vmpages_add(mm, size >> PAGE_SHIFT);
+ 	vm_stat_account(vma->vm_mm, vma->vm_flags, vma->vm_file,
+ 							vma_pages(vma));
+ 	up_write(&task->mm->mmap_sem);
+Index: vserver-sources-2.0.1_2.6.15/arch/ia64/kernel/ptrace.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/ia64/kernel/ptrace.c
++++ vserver-sources-2.0.1_2.6.15/arch/ia64/kernel/ptrace.c
+@@ -1450,6 +1450,9 @@ sys_ptrace (long request, pid_t pid, uns
+ 	read_unlock(&tasklist_lock);
+ 	if (!child)
+ 		goto out;
++	if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT))
++		goto out_tsk;
++
+ 	ret = -EPERM;
+ 	if (pid == 1)		/* no messing around with init! */
+ 		goto out_tsk;
+Index: vserver-sources-2.0.1_2.6.15/arch/ia64/mm/fault.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/ia64/mm/fault.c
++++ vserver-sources-2.0.1_2.6.15/arch/ia64/mm/fault.c
+@@ -10,6 +10,7 @@
+ #include <linux/smp_lock.h>
+ #include <linux/interrupt.h>
+ #include <linux/kprobes.h>
++#include <linux/vs_memory.h>
+ 
+ #include <asm/pgtable.h>
+ #include <asm/processor.h>
+Index: vserver-sources-2.0.1_2.6.15/arch/m68k/Kconfig
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/m68k/Kconfig
++++ vserver-sources-2.0.1_2.6.15/arch/m68k/Kconfig
+@@ -650,6 +650,8 @@ source "fs/Kconfig"
+ 
+ source "arch/m68k/Kconfig.debug"
+ 
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+ 
+ source "crypto/Kconfig"
+Index: vserver-sources-2.0.1_2.6.15/arch/m68k/kernel/ptrace.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/m68k/kernel/ptrace.c
++++ vserver-sources-2.0.1_2.6.15/arch/m68k/kernel/ptrace.c
+@@ -280,6 +280,8 @@ long arch_ptrace(struct task_struct *chi
+ 		ret = ptrace_request(child, request, addr, data);
+ 		break;
+ 	}
++	if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT))
++		goto out_tsk;
+ 
+ 	return ret;
+ out_eio:
+Index: vserver-sources-2.0.1_2.6.15/arch/m68knommu/Kconfig
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/m68knommu/Kconfig
++++ vserver-sources-2.0.1_2.6.15/arch/m68knommu/Kconfig
+@@ -646,6 +646,8 @@ source "fs/Kconfig"
+ 
+ source "arch/m68knommu/Kconfig.debug"
+ 
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+ 
+ source "crypto/Kconfig"
+Index: vserver-sources-2.0.1_2.6.15/arch/mips/Kconfig
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/mips/Kconfig
++++ vserver-sources-2.0.1_2.6.15/arch/mips/Kconfig
+@@ -1817,6 +1817,8 @@ source "arch/mips/oprofile/Kconfig"
+ 
+ source "arch/mips/Kconfig.debug"
+ 
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+ 
+ source "crypto/Kconfig"
+Index: vserver-sources-2.0.1_2.6.15/arch/mips/kernel/linux32.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/mips/kernel/linux32.c
++++ vserver-sources-2.0.1_2.6.15/arch/mips/kernel/linux32.c
+@@ -1150,7 +1150,7 @@ asmlinkage long sys32_newuname(struct ne
+ 	int ret = 0;
+ 
+ 	down_read(&uts_sem);
+-	if (copy_to_user(name,&system_utsname,sizeof *name))
++	if (copy_to_user(name, vx_new_utsname(), sizeof *name))
+ 		ret = -EFAULT;
+ 	up_read(&uts_sem);
+ 
+Index: vserver-sources-2.0.1_2.6.15/arch/mips/kernel/ptrace.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/mips/kernel/ptrace.c
++++ vserver-sources-2.0.1_2.6.15/arch/mips/kernel/ptrace.c
+@@ -484,6 +484,8 @@ asmlinkage void do_syscall_trace(struct 
+ 		goto out;
+ 	if (!test_thread_flag(TIF_SYSCALL_TRACE))
+ 		goto out;
++	if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT))
++		goto out_tsk;
+ 
+ 	/* The 0x80 provides a way for the tracing parent to distinguish
+ 	   between a syscall stop and SIGTRAP delivery */
+Index: vserver-sources-2.0.1_2.6.15/arch/mips/kernel/scall32-o32.S
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/mips/kernel/scall32-o32.S
++++ vserver-sources-2.0.1_2.6.15/arch/mips/kernel/scall32-o32.S
+@@ -607,7 +607,7 @@ einval:	li	v0, -EINVAL
+ 	sys	sys_mq_timedreceive	5
+ 	sys	sys_mq_notify		2	/* 4275 */
+ 	sys	sys_mq_getsetattr	3
+-	sys	sys_ni_syscall		0	/* sys_vserver */
++	sys	sys_vserver		3
+ 	sys	sys_waitid		5
+ 	sys	sys_ni_syscall		0	/* available, was setaltroot */
+ 	sys	sys_add_key		5	/* 4280 */
+Index: vserver-sources-2.0.1_2.6.15/arch/mips/kernel/scall64-64.S
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/mips/kernel/scall64-64.S
++++ vserver-sources-2.0.1_2.6.15/arch/mips/kernel/scall64-64.S
+@@ -433,7 +433,7 @@ sys_call_table:
+ 	PTR	sys_mq_timedreceive
+ 	PTR	sys_mq_notify
+ 	PTR	sys_mq_getsetattr		/* 5235 */
+-	PTR	sys_ni_syscall			/* sys_vserver */
++	PTR	sys_vserver
+ 	PTR	sys_waitid
+ 	PTR	sys_ni_syscall			/* available, was setaltroot */
+ 	PTR	sys_add_key
+Index: vserver-sources-2.0.1_2.6.15/arch/mips/kernel/scall64-n32.S
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/mips/kernel/scall64-n32.S
++++ vserver-sources-2.0.1_2.6.15/arch/mips/kernel/scall64-n32.S
+@@ -359,7 +359,7 @@ EXPORT(sysn32_call_table)
+ 	PTR	compat_sys_mq_timedreceive
+ 	PTR	compat_sys_mq_notify
+ 	PTR	compat_sys_mq_getsetattr
+-	PTR	sys_ni_syscall			/* 6240, sys_vserver */
++	PTR	sys32_vserver			/* 6240 */
+ 	PTR	sysn32_waitid
+ 	PTR	sys_ni_syscall			/* available, was setaltroot */
+ 	PTR	sys_add_key
+Index: vserver-sources-2.0.1_2.6.15/arch/mips/kernel/scall64-o32.S
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/mips/kernel/scall64-o32.S
++++ vserver-sources-2.0.1_2.6.15/arch/mips/kernel/scall64-o32.S
+@@ -481,7 +481,7 @@ sys_call_table:
+ 	PTR	compat_sys_mq_timedreceive
+ 	PTR	compat_sys_mq_notify		/* 4275 */
+ 	PTR	compat_sys_mq_getsetattr
+-	PTR	sys_ni_syscall			/* sys_vserver */
++	PTR	sys32_vserver
+ 	PTR	sys32_waitid
+ 	PTR	sys_ni_syscall			/* available, was setaltroot */
+ 	PTR	sys_add_key			/* 4280 */
+Index: vserver-sources-2.0.1_2.6.15/arch/mips/kernel/syscall.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/mips/kernel/syscall.c
++++ vserver-sources-2.0.1_2.6.15/arch/mips/kernel/syscall.c
+@@ -28,6 +28,7 @@
+ #include <linux/shm.h>
+ #include <linux/compiler.h>
+ #include <linux/module.h>
++#include <linux/vs_cvirt.h>
+ 
+ #include <asm/branch.h>
+ #include <asm/cachectl.h>
+@@ -228,7 +229,7 @@ out:
+  */
+ asmlinkage int sys_uname(struct old_utsname * name)
+ {
+-	if (name && !copy_to_user(name, &system_utsname, sizeof (*name)))
++	if (name && !copy_to_user(name, vx_new_utsname(), sizeof (*name)))
+ 		return 0;
+ 	return -EFAULT;
+ }
+@@ -239,21 +240,23 @@ asmlinkage int sys_uname(struct old_utsn
+ asmlinkage int sys_olduname(struct oldold_utsname * name)
+ {
+ 	int error;
++	struct new_utsname *ptr;
+ 
+ 	if (!name)
+ 		return -EFAULT;
+ 	if (!access_ok(VERIFY_WRITE,name,sizeof(struct oldold_utsname)))
+ 		return -EFAULT;
+ 
+-	error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN);
++	ptr = vx_new_utsname();
++	error = __copy_to_user(&name->sysname,ptr->sysname,__OLD_UTS_LEN);
+ 	error -= __put_user(0,name->sysname+__OLD_UTS_LEN);
+-	error -= __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN);
++	error -= __copy_to_user(&name->nodename,ptr->nodename,__OLD_UTS_LEN);
+ 	error -= __put_user(0,name->nodename+__OLD_UTS_LEN);
+-	error -= __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN);
++	error -= __copy_to_user(&name->release,ptr->release,__OLD_UTS_LEN);
+ 	error -= __put_user(0,name->release+__OLD_UTS_LEN);
+-	error -= __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN);
++	error -= __copy_to_user(&name->version,ptr->version,__OLD_UTS_LEN);
+ 	error -= __put_user(0,name->version+__OLD_UTS_LEN);
+-	error -= __copy_to_user(&name->machine,&system_utsname.machine,__OLD_UTS_LEN);
++	error -= __copy_to_user(&name->machine,ptr->machine,__OLD_UTS_LEN);
+ 	error = __put_user(0,name->machine+__OLD_UTS_LEN);
+ 	error = error ? -EFAULT : 0;
+ 
+@@ -289,10 +292,10 @@ asmlinkage int _sys_sysmips(int cmd, lon
+ 			return -EFAULT;
+ 
+ 		down_write(&uts_sem);
+-		strncpy(system_utsname.nodename, nodename, len);
++		strncpy(vx_new_uts(nodename), nodename, len);
+ 		nodename[__NEW_UTS_LEN] = '\0';
+-		strlcpy(system_utsname.nodename, nodename,
+-		        sizeof(system_utsname.nodename));
++		strlcpy(vx_new_uts(nodename), nodename,
++			sizeof(vx_new_uts(nodename)));
+ 		up_write(&uts_sem);
+ 		return 0;
+ 	}
+Index: vserver-sources-2.0.1_2.6.15/arch/mips/kernel/sysirix.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/mips/kernel/sysirix.c
++++ vserver-sources-2.0.1_2.6.15/arch/mips/kernel/sysirix.c
+@@ -30,6 +30,7 @@
+ #include <linux/socket.h>
+ #include <linux/security.h>
+ #include <linux/syscalls.h>
++#include <linux/vs_cvirt.h>
+ 
+ #include <asm/ptrace.h>
+ #include <asm/page.h>
+Index: vserver-sources-2.0.1_2.6.15/arch/parisc/Kconfig
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/parisc/Kconfig
++++ vserver-sources-2.0.1_2.6.15/arch/parisc/Kconfig
+@@ -205,6 +205,8 @@ source "arch/parisc/oprofile/Kconfig"
+ 
+ source "arch/parisc/Kconfig.debug"
+ 
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+ 
+ source "crypto/Kconfig"
+Index: vserver-sources-2.0.1_2.6.15/arch/parisc/kernel/sys_parisc32.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/parisc/kernel/sys_parisc32.c
++++ vserver-sources-2.0.1_2.6.15/arch/parisc/kernel/sys_parisc32.c
+@@ -657,6 +657,7 @@ asmlinkage int sys32_sysinfo(struct sysi
+ 
+ 	do {
+ 		seq = read_seqbegin(&xtime_lock);
++		/* FIXME: requires vx virtualization */
+ 		val.uptime = jiffies / HZ;
+ 
+ 		val.loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT);
+Index: vserver-sources-2.0.1_2.6.15/arch/parisc/kernel/syscall_table.S
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/parisc/kernel/syscall_table.S
++++ vserver-sources-2.0.1_2.6.15/arch/parisc/kernel/syscall_table.S
+@@ -368,7 +368,7 @@
+ 	ENTRY_COMP(mbind)		/* 260 */
+ 	ENTRY_COMP(get_mempolicy)
+ 	ENTRY_COMP(set_mempolicy)
+-	ENTRY_SAME(ni_syscall)	/* 263: reserved for vserver */
++	ENTRY_DIFF(vserver)
+ 	ENTRY_SAME(add_key)
+ 	ENTRY_SAME(request_key)		/* 265 */
+ 	ENTRY_SAME(keyctl)
+Index: vserver-sources-2.0.1_2.6.15/arch/ppc/Kconfig
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/ppc/Kconfig
++++ vserver-sources-2.0.1_2.6.15/arch/ppc/Kconfig
+@@ -1422,6 +1422,8 @@ source "arch/powerpc/oprofile/Kconfig"
+ 
+ source "arch/ppc/Kconfig.debug"
+ 
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+ 
+ source "crypto/Kconfig"
+Index: vserver-sources-2.0.1_2.6.15/arch/ppc/kernel/misc.S
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/ppc/kernel/misc.S
++++ vserver-sources-2.0.1_2.6.15/arch/ppc/kernel/misc.S
+@@ -1382,7 +1382,7 @@ _GLOBAL(sys_call_table)
+ 	.long ppc_fadvise64_64
+ 	.long sys_ni_syscall		/* 255 - rtas (used on ppc64) */
+ 	.long sys_debug_setcontext
+-	.long sys_ni_syscall		/* 257 reserved for vserver */
++	.long sys_vserver
+ 	.long sys_ni_syscall		/* 258 reserved for new sys_remap_file_pages */
+ 	.long sys_ni_syscall		/* 259 reserved for new sys_mbind */
+ 	.long sys_ni_syscall		/* 260 reserved for new sys_get_mempolicy */
+Index: vserver-sources-2.0.1_2.6.15/arch/s390/Kconfig
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/s390/Kconfig
++++ vserver-sources-2.0.1_2.6.15/arch/s390/Kconfig
+@@ -485,6 +485,8 @@ source "arch/s390/oprofile/Kconfig"
+ 
+ source "arch/s390/Kconfig.debug"
+ 
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+ 
+ source "crypto/Kconfig"
+Index: vserver-sources-2.0.1_2.6.15/arch/s390/kernel/ptrace.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/s390/kernel/ptrace.c
++++ vserver-sources-2.0.1_2.6.15/arch/s390/kernel/ptrace.c
+@@ -738,9 +738,11 @@ sys_ptrace(long request, long pid, long 
+ 	read_unlock(&tasklist_lock);
+ 	if (!child)
+ 		goto out;
++	if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT))
++		goto out_tsk;
+ 
+ 	ret = do_ptrace(child, request, addr, data);
+-
++out_tsk:
+ 	put_task_struct(child);
+ out:
+ 	unlock_kernel();
+Index: vserver-sources-2.0.1_2.6.15/arch/s390/kernel/syscalls.S
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/s390/kernel/syscalls.S
++++ vserver-sources-2.0.1_2.6.15/arch/s390/kernel/syscalls.S
+@@ -271,7 +271,7 @@ SYSCALL(sys_clock_settime,sys_clock_sett
+ SYSCALL(sys_clock_gettime,sys_clock_gettime,sys32_clock_gettime_wrapper)	/* 260 */
+ SYSCALL(sys_clock_getres,sys_clock_getres,sys32_clock_getres_wrapper)
+ SYSCALL(sys_clock_nanosleep,sys_clock_nanosleep,sys32_clock_nanosleep_wrapper)
+-NI_SYSCALL							/* reserved for vserver */
++SYSCALL(sys_vserver,sys_vserver,sys32_vserver)
+ SYSCALL(s390_fadvise64_64,sys_ni_syscall,sys32_fadvise64_64_wrapper)
+ SYSCALL(sys_statfs64,sys_statfs64,compat_sys_statfs64_wrapper)
+ SYSCALL(sys_fstatfs64,sys_fstatfs64,compat_sys_fstatfs64_wrapper)
+Index: vserver-sources-2.0.1_2.6.15/arch/sh/Kconfig
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/sh/Kconfig
++++ vserver-sources-2.0.1_2.6.15/arch/sh/Kconfig
+@@ -770,6 +770,8 @@ source "arch/sh/oprofile/Kconfig"
+ 
+ source "arch/sh/Kconfig.debug"
+ 
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+ 
+ source "crypto/Kconfig"
+Index: vserver-sources-2.0.1_2.6.15/arch/sh/kernel/kgdb_stub.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/sh/kernel/kgdb_stub.c
++++ vserver-sources-2.0.1_2.6.15/arch/sh/kernel/kgdb_stub.c
+@@ -412,7 +412,7 @@ static struct task_struct *get_thread(in
+ 	if (pid == PID_MAX) pid = 0;
+ 
+ 	/* First check via PID */
+-	thread = find_task_by_pid(pid);
++	thread = find_task_by_real_pid(pid);
+ 
+ 	if (thread)
+ 		return thread;
+Index: vserver-sources-2.0.1_2.6.15/arch/sparc/Kconfig
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/sparc/Kconfig
++++ vserver-sources-2.0.1_2.6.15/arch/sparc/Kconfig
+@@ -288,6 +288,8 @@ source "fs/Kconfig"
+ 
+ source "arch/sparc/Kconfig.debug"
+ 
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+ 
+ source "crypto/Kconfig"
+Index: vserver-sources-2.0.1_2.6.15/arch/sparc/kernel/ptrace.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/sparc/kernel/ptrace.c
++++ vserver-sources-2.0.1_2.6.15/arch/sparc/kernel/ptrace.c
+@@ -322,6 +322,10 @@ asmlinkage void do_ptrace(struct pt_regs
+ 		pt_error_return(regs, ESRCH);
+ 		goto out;
+ 	}
++	if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT)) {
++		pt_error_return(regs, ESRCH);
++		goto out_tsk;
++	}
+ 
+ 	if ((current->personality == PER_SUNOS && request == PTRACE_SUNATTACH)
+ 	    || (current->personality != PER_SUNOS && request == PTRACE_ATTACH)) {
+Index: vserver-sources-2.0.1_2.6.15/arch/sparc/kernel/sys_sparc.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/sparc/kernel/sys_sparc.c
++++ vserver-sources-2.0.1_2.6.15/arch/sparc/kernel/sys_sparc.c
+@@ -21,6 +21,7 @@
+ #include <linux/utsname.h>
+ #include <linux/smp.h>
+ #include <linux/smp_lock.h>
++#include <linux/vs_cvirt.h>
+ 
+ #include <asm/uaccess.h>
+ #include <asm/ipc.h>
+@@ -470,13 +471,13 @@ asmlinkage int sys_getdomainname(char __
+  	
+  	down_read(&uts_sem);
+  	
+-	nlen = strlen(system_utsname.domainname) + 1;
++	nlen = strlen(vx_new_uts(domainname)) + 1;
+ 
+ 	if (nlen < len)
+ 		len = nlen;
+ 	if (len > __NEW_UTS_LEN)
+ 		goto done;
+-	if (copy_to_user(name, system_utsname.domainname, len))
++	if (copy_to_user(name, vx_new_uts(domainname), len))
+ 		goto done;
+ 	err = 0;
+ done:
+Index: vserver-sources-2.0.1_2.6.15/arch/sparc/kernel/systbls.S
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/sparc/kernel/systbls.S
++++ vserver-sources-2.0.1_2.6.15/arch/sparc/kernel/systbls.S
+@@ -72,7 +72,7 @@ sys_call_table:
+ /*250*/	.long sparc_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_nfsservctl
+ /*255*/	.long sys_nis_syscall, sys_clock_settime, sys_clock_gettime, sys_clock_getres, sys_clock_nanosleep
+ /*260*/	.long sys_sched_getaffinity, sys_sched_setaffinity, sys_timer_settime, sys_timer_gettime, sys_timer_getoverrun
+-/*265*/	.long sys_timer_delete, sys_timer_create, sys_nis_syscall, sys_io_setup, sys_io_destroy
++/*265*/	.long sys_timer_delete, sys_timer_create, sys_vserver, sys_io_setup, sys_io_destroy
+ /*270*/	.long sys_io_submit, sys_io_cancel, sys_io_getevents, sys_mq_open, sys_mq_unlink
+ /*275*/	.long sys_mq_timedsend, sys_mq_timedreceive, sys_mq_notify, sys_mq_getsetattr, sys_waitid
+ /*280*/	.long sys_ni_syscall, sys_add_key, sys_request_key, sys_keyctl
+Index: vserver-sources-2.0.1_2.6.15/arch/sparc64/Kconfig
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/sparc64/Kconfig
++++ vserver-sources-2.0.1_2.6.15/arch/sparc64/Kconfig
+@@ -398,6 +398,8 @@ endmenu
+ 
+ source "arch/sparc64/Kconfig.debug"
+ 
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+ 
+ source "crypto/Kconfig"
+Index: vserver-sources-2.0.1_2.6.15/arch/sparc64/kernel/binfmt_aout32.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/sparc64/kernel/binfmt_aout32.c
++++ vserver-sources-2.0.1_2.6.15/arch/sparc64/kernel/binfmt_aout32.c
+@@ -27,6 +27,7 @@
+ #include <linux/binfmts.h>
+ #include <linux/personality.h>
+ #include <linux/init.h>
++#include <linux/vs_memory.h>
+ 
+ #include <asm/system.h>
+ #include <asm/uaccess.h>
+Index: vserver-sources-2.0.1_2.6.15/arch/sparc64/kernel/ptrace.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/sparc64/kernel/ptrace.c
++++ vserver-sources-2.0.1_2.6.15/arch/sparc64/kernel/ptrace.c
+@@ -233,6 +233,10 @@ asmlinkage void do_ptrace(struct pt_regs
+ 		pt_error_return(regs, ESRCH);
+ 		goto out;
+ 	}
++	if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT)) {
++		pt_error_return(regs, ESRCH);
++		goto out_tsk;
++	}
+ 
+ 	if ((current->personality == PER_SUNOS && request == PTRACE_SUNATTACH)
+ 	    || (current->personality != PER_SUNOS && request == PTRACE_ATTACH)) {
+Index: vserver-sources-2.0.1_2.6.15/arch/sparc64/kernel/sys_sparc.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/sparc64/kernel/sys_sparc.c
++++ vserver-sources-2.0.1_2.6.15/arch/sparc64/kernel/sys_sparc.c
+@@ -25,6 +25,7 @@
+ #include <linux/syscalls.h>
+ #include <linux/ipc.h>
+ #include <linux/personality.h>
++#include <linux/vs_cvirt.h>
+ 
+ #include <asm/uaccess.h>
+ #include <asm/ipc.h>
+@@ -476,13 +477,13 @@ asmlinkage long sys_getdomainname(char _
+ 
+  	down_read(&uts_sem);
+  	
+-	nlen = strlen(system_utsname.domainname) + 1;
++	nlen = strlen(vx_new_uts(domainname)) + 1;
+ 
+         if (nlen < len)
+                 len = nlen;
+ 	if (len > __NEW_UTS_LEN)
+ 		goto done;
+-	if (copy_to_user(name, system_utsname.domainname, len))
++	if (copy_to_user(name, vx_new_uts(domainname), len))
+ 		goto done;
+ 	err = 0;
+ done:
+Index: vserver-sources-2.0.1_2.6.15/arch/sparc64/kernel/systbls.S
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/sparc64/kernel/systbls.S
++++ vserver-sources-2.0.1_2.6.15/arch/sparc64/kernel/systbls.S
+@@ -73,7 +73,7 @@ sys_call_table32:
+ /*250*/	.word sys32_mremap, sys32_sysctl, sys32_getsid, sys_fdatasync, sys32_nfsservctl
+ 	.word sys_ni_syscall, compat_sys_clock_settime, compat_sys_clock_gettime, compat_sys_clock_getres, sys32_clock_nanosleep
+ /*260*/	.word compat_sys_sched_getaffinity, compat_sys_sched_setaffinity, sys32_timer_settime, compat_sys_timer_gettime, sys_timer_getoverrun
+-	.word sys_timer_delete, sys32_timer_create, sys_ni_syscall, compat_sys_io_setup, sys_io_destroy
++	.word sys_timer_delete, sys32_timer_create, sys32_vserver, compat_sys_io_setup, sys_io_destroy
+ /*270*/	.word sys32_io_submit, sys_io_cancel, compat_sys_io_getevents, sys32_mq_open, sys_mq_unlink
+ 	.word compat_sys_mq_timedsend, compat_sys_mq_timedreceive, compat_sys_mq_notify, compat_sys_mq_getsetattr, compat_sys_waitid
+ /*280*/	.word sys_ni_syscall, sys_add_key, sys_request_key, sys_keyctl
+@@ -139,7 +139,7 @@ sys_call_table:
+ /*250*/	.word sys64_mremap, sys_sysctl, sys_getsid, sys_fdatasync, sys_nfsservctl
+ 	.word sys_ni_syscall, sys_clock_settime, sys_clock_gettime, sys_clock_getres, sys_clock_nanosleep
+ /*260*/	.word sys_sched_getaffinity, sys_sched_setaffinity, sys_timer_settime, sys_timer_gettime, sys_timer_getoverrun
+-	.word sys_timer_delete, sys_timer_create, sys_ni_syscall, sys_io_setup, sys_io_destroy
++	.word sys_timer_delete, sys_timer_create, sys_vserver, sys_io_setup, sys_io_destroy
+ /*270*/	.word sys_io_submit, sys_io_cancel, sys_io_getevents, sys_mq_open, sys_mq_unlink
+ 	.word sys_mq_timedsend, sys_mq_timedreceive, sys_mq_notify, sys_mq_getsetattr, sys_waitid
+ /*280*/	.word sys_nis_syscall, sys_add_key, sys_request_key, sys_keyctl
+Index: vserver-sources-2.0.1_2.6.15/arch/um/Kconfig
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/um/Kconfig
++++ vserver-sources-2.0.1_2.6.15/arch/um/Kconfig
+@@ -293,6 +293,8 @@ source "drivers/connector/Kconfig"
+ 
+ source "fs/Kconfig"
+ 
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+ 
+ source "crypto/Kconfig"
+Index: vserver-sources-2.0.1_2.6.15/arch/um/kernel/process_kern.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/um/kernel/process_kern.c
++++ vserver-sources-2.0.1_2.6.15/arch/um/kernel/process_kern.c
+@@ -23,6 +23,8 @@
+ #include "linux/proc_fs.h"
+ #include "linux/ptrace.h"
+ #include "linux/random.h"
++#include "linux/vs_cvirt.h"
++
+ #include "asm/unistd.h"
+ #include "asm/mman.h"
+ #include "asm/segment.h"
+Index: vserver-sources-2.0.1_2.6.15/arch/um/kernel/syscall_kern.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/um/kernel/syscall_kern.c
++++ vserver-sources-2.0.1_2.6.15/arch/um/kernel/syscall_kern.c
+@@ -15,6 +15,8 @@
+ #include "linux/unistd.h"
+ #include "linux/slab.h"
+ #include "linux/utime.h"
++#include <linux/vs_cvirt.h>
++
+ #include "asm/mman.h"
+ #include "asm/uaccess.h"
+ #include "kern_util.h"
+@@ -110,7 +112,7 @@ long sys_uname(struct old_utsname * name
+ 	if (!name)
+ 		return -EFAULT;
+ 	down_read(&uts_sem);
+-	err=copy_to_user(name, &system_utsname, sizeof (*name));
++	err=copy_to_user(name, vx_new_utsname(), sizeof (*name));
+ 	up_read(&uts_sem);
+ 	return err?-EFAULT:0;
+ }
+@@ -118,6 +120,7 @@ long sys_uname(struct old_utsname * name
+ long sys_olduname(struct oldold_utsname * name)
+ {
+ 	long error;
++	struct new_utsname *ptr;
+ 
+ 	if (!name)
+ 		return -EFAULT;
+@@ -126,19 +129,20 @@ long sys_olduname(struct oldold_utsname 
+   
+   	down_read(&uts_sem);
+ 	
+-	error = __copy_to_user(&name->sysname,&system_utsname.sysname,
++	ptr = vx_new_utsname();
++	error = __copy_to_user(&name->sysname,ptr->sysname,
+ 			       __OLD_UTS_LEN);
+ 	error |= __put_user(0,name->sysname+__OLD_UTS_LEN);
+-	error |= __copy_to_user(&name->nodename,&system_utsname.nodename,
++	error |= __copy_to_user(&name->nodename,ptr->nodename,
+ 				__OLD_UTS_LEN);
+ 	error |= __put_user(0,name->nodename+__OLD_UTS_LEN);
+-	error |= __copy_to_user(&name->release,&system_utsname.release,
++	error |= __copy_to_user(&name->release,ptr->release,
+ 				__OLD_UTS_LEN);
+ 	error |= __put_user(0,name->release+__OLD_UTS_LEN);
+-	error |= __copy_to_user(&name->version,&system_utsname.version,
++	error |= __copy_to_user(&name->version,ptr->version,
+ 				__OLD_UTS_LEN);
+ 	error |= __put_user(0,name->version+__OLD_UTS_LEN);
+-	error |= __copy_to_user(&name->machine,&system_utsname.machine,
++	error |= __copy_to_user(&name->machine,ptr->machine,
+ 				__OLD_UTS_LEN);
+ 	error |= __put_user(0,name->machine+__OLD_UTS_LEN);
+ 	
+Index: vserver-sources-2.0.1_2.6.15/arch/v850/Kconfig
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/v850/Kconfig
++++ vserver-sources-2.0.1_2.6.15/arch/v850/Kconfig
+@@ -319,6 +319,8 @@ source "drivers/usb/Kconfig"
+ 
+ source "arch/v850/Kconfig.debug"
+ 
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+ 
+ source "crypto/Kconfig"
+Index: vserver-sources-2.0.1_2.6.15/arch/v850/kernel/ptrace.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/v850/kernel/ptrace.c
++++ vserver-sources-2.0.1_2.6.15/arch/v850/kernel/ptrace.c
+@@ -137,6 +137,8 @@ long arch_ptrace(struct task_struct *chi
+ 			break;
+ 		rval = -EIO;
+ 		goto out;
++	if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT))
++		goto out_tsk;
+ 
+ 	/* Read/write the word at location ADDR in the registers.  */
+ 	case PTRACE_PEEKUSR:
+Index: vserver-sources-2.0.1_2.6.15/arch/x86_64/Kconfig
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/x86_64/Kconfig
++++ vserver-sources-2.0.1_2.6.15/arch/x86_64/Kconfig
+@@ -574,6 +574,8 @@ endmenu
+ 
+ source "arch/x86_64/Kconfig.debug"
+ 
++source "kernel/vserver/Kconfig"
++
+ source "security/Kconfig"
+ 
+ source "crypto/Kconfig"
+Index: vserver-sources-2.0.1_2.6.15/arch/x86_64/ia32/ia32_aout.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/x86_64/ia32/ia32_aout.c
++++ vserver-sources-2.0.1_2.6.15/arch/x86_64/ia32/ia32_aout.c
+@@ -25,6 +25,7 @@
+ #include <linux/binfmts.h>
+ #include <linux/personality.h>
+ #include <linux/init.h>
++#include <linux/vs_memory.h>
+ 
+ #include <asm/system.h>
+ #include <asm/uaccess.h>
+Index: vserver-sources-2.0.1_2.6.15/arch/x86_64/ia32/ia32_binfmt.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/x86_64/ia32/ia32_binfmt.c
++++ vserver-sources-2.0.1_2.6.15/arch/x86_64/ia32/ia32_binfmt.c
+@@ -337,7 +337,7 @@ static void elf32_init(struct pt_regs *r
+ int ia32_setup_arg_pages(struct linux_binprm *bprm, unsigned long stack_top,
+ 			 int executable_stack)
+ {
+-	unsigned long stack_base;
++	unsigned long stack_base, grow;
+ 	struct vm_area_struct *mpnt;
+ 	struct mm_struct *mm = current->mm;
+ 	int i, ret;
+@@ -374,7 +374,8 @@ int ia32_setup_arg_pages(struct linux_bi
+ 			kmem_cache_free(vm_area_cachep, mpnt);
+ 			return ret;
+ 		}
+-		mm->stack_vm = mm->total_vm = vma_pages(mpnt);
++		vx_vmpages_sub(mm, mm->total_vm - vma_pages(mpnt));
++		mm->stack_vm = mm->total_vm;
+ 	} 
+ 
+ 	for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
+Index: vserver-sources-2.0.1_2.6.15/arch/x86_64/ia32/ia32entry.S
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/x86_64/ia32/ia32entry.S
++++ vserver-sources-2.0.1_2.6.15/arch/x86_64/ia32/ia32entry.S
+@@ -622,7 +622,7 @@ ia32_sys_call_table:
+ 	.quad sys_tgkill		/* 270 */
+ 	.quad compat_sys_utimes
+ 	.quad sys32_fadvise64_64
+-	.quad quiet_ni_syscall	/* sys_vserver */
++	.quad sys32_vserver
+ 	.quad sys_mbind
+ 	.quad compat_sys_get_mempolicy	/* 275 */
+ 	.quad sys_set_mempolicy
+Index: vserver-sources-2.0.1_2.6.15/arch/x86_64/ia32/sys_ia32.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/x86_64/ia32/sys_ia32.c
++++ vserver-sources-2.0.1_2.6.15/arch/x86_64/ia32/sys_ia32.c
+@@ -860,6 +860,7 @@ asmlinkage long sys32_mmap2(unsigned lon
+ asmlinkage long sys32_olduname(struct oldold_utsname __user * name)
+ {
+ 	int error;
++	struct new_utsname *ptr;
+ 
+ 	if (!name)
+ 		return -EFAULT;
+@@ -868,13 +869,14 @@ asmlinkage long sys32_olduname(struct ol
+   
+   	down_read(&uts_sem);
+ 	
+-	error = __copy_to_user(&name->sysname,&system_utsname.sysname,__OLD_UTS_LEN);
++	ptr = vx_new_utsname();
++	error = __copy_to_user(&name->sysname,ptr->sysname,__OLD_UTS_LEN);
+ 	 __put_user(0,name->sysname+__OLD_UTS_LEN);
+-	 __copy_to_user(&name->nodename,&system_utsname.nodename,__OLD_UTS_LEN);
++	 __copy_to_user(&name->nodename,ptr->nodename,__OLD_UTS_LEN);
+ 	 __put_user(0,name->nodename+__OLD_UTS_LEN);
+-	 __copy_to_user(&name->release,&system_utsname.release,__OLD_UTS_LEN);
++	 __copy_to_user(&name->release,ptr->release,__OLD_UTS_LEN);
+ 	 __put_user(0,name->release+__OLD_UTS_LEN);
+-	 __copy_to_user(&name->version,&system_utsname.version,__OLD_UTS_LEN);
++	 __copy_to_user(&name->version,ptr->version,__OLD_UTS_LEN);
+ 	 __put_user(0,name->version+__OLD_UTS_LEN);
+ 	 { 
+ 		 char *arch = "x86_64";
+@@ -897,7 +899,7 @@ long sys32_uname(struct old_utsname __us
+ 	if (!name)
+ 		return -EFAULT;
+ 	down_read(&uts_sem);
+-	err=copy_to_user(name, &system_utsname, sizeof (*name));
++	err=copy_to_user(name, vx_new_utsname(), sizeof (*name));
+ 	up_read(&uts_sem);
+ 	if (personality(current->personality) == PER_LINUX32) 
+ 		err |= copy_to_user(&name->machine, "i686", 5);
+Index: vserver-sources-2.0.1_2.6.15/arch/x86_64/ia32/syscall32.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/x86_64/ia32/syscall32.c
++++ vserver-sources-2.0.1_2.6.15/arch/x86_64/ia32/syscall32.c
+@@ -10,6 +10,7 @@
+ #include <linux/init.h>
+ #include <linux/stringify.h>
+ #include <linux/security.h>
++#include <linux/vs_memory.h>
+ #include <asm/proto.h>
+ #include <asm/tlbflush.h>
+ #include <asm/ia32_unistd.h>
+@@ -70,7 +71,7 @@ int syscall32_setup_pages(struct linux_b
+ 		kmem_cache_free(vm_area_cachep, vma);
+ 		return ret;
+ 	}
+-	mm->total_vm += npages;
++	vx_vmpages_add(mm, npages);
+ 	up_write(&mm->mmap_sem);
+ 	return 0;
+ }
+Index: vserver-sources-2.0.1_2.6.15/arch/x86_64/kernel/sys_x86_64.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/arch/x86_64/kernel/sys_x86_64.c
++++ vserver-sources-2.0.1_2.6.15/arch/x86_64/kernel/sys_x86_64.c
+@@ -16,6 +16,7 @@
+ #include <linux/file.h>
+ #include <linux/utsname.h>
+ #include <linux/personality.h>
++#include <linux/vs_cvirt.h>
+ 
+ #include <asm/uaccess.h>
+ #include <asm/ia32.h>
+@@ -148,7 +149,7 @@ asmlinkage long sys_uname(struct new_uts
+ {
+ 	int err;
+ 	down_read(&uts_sem);
+-	err = copy_to_user(name, &system_utsname, sizeof (*name));
++	err = copy_to_user(name, vx_new_utsname(), sizeof (*name));
+ 	up_read(&uts_sem);
+ 	if (personality(current->personality) == PER_LINUX32) 
+ 		err |= copy_to_user(&name->machine, "i686", 5); 		
+Index: vserver-sources-2.0.1_2.6.15/drivers/block/Kconfig
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/drivers/block/Kconfig
++++ vserver-sources-2.0.1_2.6.15/drivers/block/Kconfig
+@@ -315,6 +315,13 @@ config BLK_DEV_CRYPTOLOOP
+ 	  instead, which can be configured to be on-disk compatible with the
+ 	  cryptoloop device.
+ 
++config BLK_DEV_VROOT
++	tristate "Virtual Root device support"
++	depends on QUOTACTL
++	---help---
++	  Saying Y here will allow you to use quota/fs ioctls on a shared
++	  partition within a virtual server without compromising security.
++
+ config BLK_DEV_NBD
+ 	tristate "Network block device support"
+ 	depends on NET
+Index: vserver-sources-2.0.1_2.6.15/drivers/block/Makefile
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/drivers/block/Makefile
++++ vserver-sources-2.0.1_2.6.15/drivers/block/Makefile
+@@ -30,4 +30,5 @@ obj-$(CONFIG_BLK_DEV_CRYPTOLOOP) += cryp
+ obj-$(CONFIG_VIODASD)		+= viodasd.o
+ obj-$(CONFIG_BLK_DEV_SX8)	+= sx8.o
+ obj-$(CONFIG_BLK_DEV_UB)	+= ub.o
++obj-$(CONFIG_BLK_DEV_VROOT)	+= vroot.o
+ 
+Index: vserver-sources-2.0.1_2.6.15/drivers/block/vroot.c
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/drivers/block/vroot.c
+@@ -0,0 +1,289 @@
++/*
++ *  linux/drivers/block/vroot.c
++ *
++ *  written by Herbert Pötzl, 9/11/2002
++ *  ported to 2.6.10 by Herbert Pötzl, 30/12/2004
++ *
++ *  based on the loop.c code by Theodore Ts'o.
++ *
++ * Copyright (C) 2002-2005 by Herbert Pötzl.
++ * Redistribution of this file is permitted under the
++ * GNU General Public License.
++ *
++ */
++
++#include <linux/config.h>
++#include <linux/module.h>
++#include <linux/moduleparam.h>
++#include <linux/file.h>
++#include <linux/major.h>
++#include <linux/blkdev.h>
++#include <linux/devfs_fs_kernel.h>
++
++#include <linux/vroot.h>
++#include <linux/vserver/debug.h>
++
++
++static int max_vroot = 8;
++
++static struct vroot_device *vroot_dev;
++static struct gendisk **disks;
++
++
++static int vroot_set_dev(
++	struct vroot_device *vr,
++	struct file *vr_file,
++	struct block_device *bdev,
++	unsigned int arg)
++{
++	struct block_device *real_bdev;
++	struct file *file;
++	struct inode *inode;
++	int error;
++
++	error = -EBUSY;
++	if (vr->vr_state != Vr_unbound)
++		goto out;
++
++	error = -EBADF;
++	file = fget(arg);
++	if (!file)
++		goto out;
++
++	error = -EINVAL;
++	inode = file->f_dentry->d_inode;
++
++
++	if (S_ISBLK(inode->i_mode)) {
++		real_bdev = inode->i_bdev;
++		vr->vr_device = real_bdev;
++		__iget(real_bdev->bd_inode);
++	} else
++		goto out_fput;
++
++	vxdprintk(VXD_CBIT(misc, 0),
++		"vroot[%d]_set_dev: dev=" VXF_DEV,
++		vr->vr_number, VXD_DEV(real_bdev));
++
++	vr->vr_state = Vr_bound;
++	error = 0;
++
++ out_fput:
++	fput(file);
++ out:
++	return error;
++}
++
++static int vroot_clr_dev(
++	struct vroot_device *vr,
++	struct file *vr_file,
++	struct block_device *bdev)
++{
++	struct block_device *real_bdev;
++
++	if (vr->vr_state != Vr_bound)
++		return -ENXIO;
++	if (vr->vr_refcnt > 1)	/* we needed one fd for the ioctl */
++		return -EBUSY;
++
++	real_bdev = vr->vr_device;
++
++	vxdprintk(VXD_CBIT(misc, 0),
++		"vroot[%d]_clr_dev: dev=" VXF_DEV,
++		vr->vr_number, VXD_DEV(real_bdev));
++
++	bdput(real_bdev);
++	vr->vr_state = Vr_unbound;
++	vr->vr_device = NULL;
++	return 0;
++}
++
++
++static int vr_ioctl(struct inode * inode, struct file * file,
++	unsigned int cmd, unsigned long arg)
++{
++	struct vroot_device *vr = inode->i_bdev->bd_disk->private_data;
++	int err;
++
++	down(&vr->vr_ctl_mutex);
++	switch (cmd) {
++	case VROOT_SET_DEV:
++		err = vroot_set_dev(vr, file, inode->i_bdev, arg);
++		break;
++	case VROOT_CLR_DEV:
++		err = vroot_clr_dev(vr, file, inode->i_bdev);
++		break;
++	default:
++		err = -EINVAL;
++		break;
++	}
++	up(&vr->vr_ctl_mutex);
++	return err;
++}
++
++static int vr_open(struct inode *inode, struct file *file)
++{
++	struct vroot_device *vr = inode->i_bdev->bd_disk->private_data;
++
++	down(&vr->vr_ctl_mutex);
++	vr->vr_refcnt++;
++	up(&vr->vr_ctl_mutex);
++	return 0;
++}
++
++static int vr_release(struct inode *inode, struct file *file)
++{
++	struct vroot_device *vr = inode->i_bdev->bd_disk->private_data;
++
++	down(&vr->vr_ctl_mutex);
++	--vr->vr_refcnt;
++	up(&vr->vr_ctl_mutex);
++	return 0;
++}
++
++static struct block_device_operations vr_fops = {
++	.owner =	THIS_MODULE,
++	.open =		vr_open,
++	.release =	vr_release,
++	.ioctl =	vr_ioctl,
++};
++
++struct block_device *__vroot_get_real_bdev(struct block_device *bdev)
++{
++	struct inode *inode = bdev->bd_inode;
++	struct vroot_device *vr;
++	struct block_device *real_bdev;
++	int minor = iminor(inode);
++
++	vr = &vroot_dev[minor];
++	real_bdev = vr->vr_device;
++
++	vxdprintk(VXD_CBIT(misc, 0),
++		"vroot[%d]_get_real_bdev: dev=" VXF_DEV,
++		vr->vr_number, VXD_DEV(real_bdev));
++
++	if (vr->vr_state != Vr_bound)
++		return ERR_PTR(-ENXIO);
++
++	__iget(real_bdev->bd_inode);
++	return real_bdev;
++}
++
++/*
++ * And now the modules code and kernel interface.
++ */
++
++module_param(max_vroot, int, 0);
++
++MODULE_PARM_DESC(max_vroot, "Maximum number of vroot devices (1-256)");
++MODULE_LICENSE("GPL");
++MODULE_ALIAS_BLOCKDEV_MAJOR(VROOT_MAJOR);
++
++MODULE_AUTHOR ("Herbert Pötzl");
++MODULE_DESCRIPTION ("Virtual Root Device Mapper");
++
++
++int __init vroot_init(void)
++{
++	int err, i;
++
++	if (max_vroot < 1 || max_vroot > 256) {
++		max_vroot = MAX_VROOT_DEFAULT;
++		printk(KERN_WARNING "vroot: invalid max_vroot "
++			"(must be between 1 and 256), "
++			"using default (%d)\n", max_vroot);
++	}
++
++	if (register_blkdev(VROOT_MAJOR, "vroot"))
++		return -EIO;
++
++	err = -ENOMEM;
++	vroot_dev = kmalloc(max_vroot * sizeof(struct vroot_device), GFP_KERNEL);
++	if (!vroot_dev)
++		goto out_mem1;
++	memset(vroot_dev, 0, max_vroot * sizeof(struct vroot_device));
++
++	disks = kmalloc(max_vroot * sizeof(struct gendisk *), GFP_KERNEL);
++	if (!disks)
++		goto out_mem2;
++
++	for (i = 0; i < max_vroot; i++) {
++		disks[i] = alloc_disk(1);
++		if (!disks[i])
++			goto out_mem3;
++	}
++
++	devfs_mk_dir("vroot");
++
++	for (i = 0; i < max_vroot; i++) {
++		struct vroot_device *vr = &vroot_dev[i];
++		struct gendisk *disk = disks[i];
++
++		memset(vr, 0, sizeof(*vr));
++		init_MUTEX(&vr->vr_ctl_mutex);
++		vr->vr_number = i;
++		disk->major = VROOT_MAJOR;
++		disk->first_minor = i;
++		disk->fops = &vr_fops;
++		sprintf(disk->disk_name, "vroot%d", i);
++		sprintf(disk->devfs_name, "vroot/%d", i);
++		disk->private_data = vr;
++	}
++
++	err = register_vroot_grb(&__vroot_get_real_bdev);
++	if (err)
++		goto out_reg;
++
++	for (i = 0; i < max_vroot; i++)
++		add_disk(disks[i]);
++	printk(KERN_INFO "vroot: loaded (max %d devices)\n", max_vroot);
++	return 0;
++
++out_reg:
++	devfs_remove("vroot");
++out_mem3:
++	while (i--)
++		put_disk(disks[i]);
++	kfree(disks);
++out_mem2:
++	kfree(vroot_dev);
++out_mem1:
++	unregister_blkdev(VROOT_MAJOR, "vroot");
++	printk(KERN_ERR "vroot: ran out of memory\n");
++	return err;
++}
++
++void vroot_exit(void)
++{
++	int i;
++
++	if (unregister_vroot_grb(&__vroot_get_real_bdev))
++		printk(KERN_WARNING "vroot: cannot unregister grb\n");
++
++	for (i = 0; i < max_vroot; i++) {
++		del_gendisk(disks[i]);
++		put_disk(disks[i]);
++	}
++	devfs_remove("vroot");
++	if (unregister_blkdev(VROOT_MAJOR, "vroot"))
++		printk(KERN_WARNING "vroot: cannot unregister blkdev\n");
++
++	kfree(disks);
++	kfree(vroot_dev);
++}
++
++module_init(vroot_init);
++module_exit(vroot_exit);
++
++#ifndef MODULE
++
++static int __init max_vroot_setup(char *str)
++{
++	max_vroot = simple_strtol(str, NULL, 0);
++	return 1;
++}
++
++__setup("max_vroot=", max_vroot_setup);
++
++#endif
++
+Index: vserver-sources-2.0.1_2.6.15/drivers/char/random.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/drivers/char/random.c
++++ vserver-sources-2.0.1_2.6.15/drivers/char/random.c
+@@ -1174,7 +1174,7 @@ static char sysctl_bootid[16];
+ static int proc_do_uuid(ctl_table *table, int write, struct file *filp,
+ 			void __user *buffer, size_t *lenp, loff_t *ppos)
+ {
+-	ctl_table fake_table;
++	ctl_table fake_table = {0};
+ 	unsigned char buf[64], tmp_uuid[16], *uuid;
+ 
+ 	uuid = table->data;
+Index: vserver-sources-2.0.1_2.6.15/drivers/char/tty_io.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/drivers/char/tty_io.c
++++ vserver-sources-2.0.1_2.6.15/drivers/char/tty_io.c
+@@ -103,6 +103,7 @@
+ #include <linux/vt_kern.h>
+ #include <linux/selection.h>
+ #include <linux/devfs_fs_kernel.h>
++#include <linux/vs_cvirt.h>
+ 
+ #include <linux/kmod.h>
+ 
+@@ -2152,13 +2153,16 @@ static int tiocsctty(struct tty_struct *
+ 
+ static int tiocgpgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t __user *p)
+ {
++	pid_t pgrp;
+ 	/*
+ 	 * (tty == real_tty) is a cheap way of
+ 	 * testing if the tty is NOT a master pty.
+ 	 */
+ 	if (tty == real_tty && current->signal->tty != real_tty)
+ 		return -ENOTTY;
+-	return put_user(real_tty->pgrp, p);
++
++	pgrp = vx_map_pid(real_tty->pgrp);
++	return put_user(pgrp, p);
+ }
+ 
+ static int tiocspgrp(struct tty_struct *tty, struct tty_struct *real_tty, pid_t __user *p)
+@@ -2176,6 +2180,8 @@ static int tiocspgrp(struct tty_struct *
+ 		return -ENOTTY;
+ 	if (get_user(pgrp, p))
+ 		return -EFAULT;
++
++	pgrp = vx_rmap_pid(pgrp);
+ 	if (pgrp < 0)
+ 		return -EINVAL;
+ 	if (session_of_pgrp(pgrp) != current->signal->session)
+Index: vserver-sources-2.0.1_2.6.15/drivers/infiniband/core/uverbs_mem.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/drivers/infiniband/core/uverbs_mem.c
++++ vserver-sources-2.0.1_2.6.15/drivers/infiniband/core/uverbs_mem.c
+@@ -36,6 +36,7 @@
+ 
+ #include <linux/mm.h>
+ #include <linux/dma-mapping.h>
++#include <linux/vs_memory.h>
+ 
+ #include "uverbs.h"
+ 
+@@ -161,7 +162,7 @@ out:
+ 	if (ret < 0)
+ 		__ib_umem_release(dev, mem, 0);
+ 	else
+-		current->mm->locked_vm = locked;
++		vx_vmlocked_sub(current->mm, current->mm->locked_vm - locked);
+ 
+ 	up_write(&current->mm->mmap_sem);
+ 	free_page((unsigned long) page_list);
+@@ -174,8 +175,8 @@ void ib_umem_release(struct ib_device *d
+ 	__ib_umem_release(dev, umem, 1);
+ 
+ 	down_write(&current->mm->mmap_sem);
+-	current->mm->locked_vm -=
+-		PAGE_ALIGN(umem->length + umem->offset) >> PAGE_SHIFT;
++	vx_vmlocked_sub(current->mm,
++		PAGE_ALIGN(umem->length + umem->offset) >> PAGE_SHIFT);
+ 	up_write(&current->mm->mmap_sem);
+ }
+ 
+@@ -184,7 +185,7 @@ static void ib_umem_account(void *work_p
+ 	struct ib_umem_account_work *work = work_ptr;
+ 
+ 	down_write(&work->mm->mmap_sem);
+-	work->mm->locked_vm -= work->diff;
++	vx_vmlocked_sub(work->mm, work->diff);
+ 	up_write(&work->mm->mmap_sem);
+ 	mmput(work->mm);
+ 	kfree(work);
+Index: vserver-sources-2.0.1_2.6.15/fs/attr.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/attr.c
++++ vserver-sources-2.0.1_2.6.15/fs/attr.c
+@@ -15,6 +15,9 @@
+ #include <linux/quotaops.h>
+ #include <linux/security.h>
+ #include <linux/time.h>
++#include <linux/proc_fs.h>
++#include <linux/devpts_fs.h>
++#include <linux/vserver/debug.h>
+ 
+ /* Taken over from the old code... */
+ 
+@@ -56,6 +59,28 @@ int inode_change_ok(struct inode *inode,
+ 		if (current->fsuid != inode->i_uid && !capable(CAP_FOWNER))
+ 			goto error;
+ 	}
++
++	/* Check for evil vserver activity */
++	if (vx_check(0, VX_ADMIN))
++		goto fine;
++
++	if (IS_BARRIER(inode)) {
++		vxwprintk(1, "xid=%d messing with the barrier.",
++			vx_current_xid());
++		goto error;
++	}
++	switch (inode->i_sb->s_magic) {
++		case PROC_SUPER_MAGIC:
++			vxwprintk(1, "xid=%d messing with the procfs.",
++				vx_current_xid());
++			goto error;
++		case DEVPTS_SUPER_MAGIC:
++			if (vx_check(inode->i_xid, VX_IDENT))
++				goto fine;
++			vxwprintk(1, "xid=%d messing with the devpts.",
++				vx_current_xid());
++			goto error;
++	}
+ fine:
+ 	retval = 0;
+ error:
+@@ -87,6 +112,8 @@ int inode_setattr(struct inode * inode, 
+ 		inode->i_uid = attr->ia_uid;
+ 	if (ia_valid & ATTR_GID)
+ 		inode->i_gid = attr->ia_gid;
++	if ((ia_valid & ATTR_XID) && IS_TAGXID(inode))
++		inode->i_xid = attr->ia_xid;
+ 	if (ia_valid & ATTR_ATIME)
+ 		inode->i_atime = timespec_trunc(attr->ia_atime,
+ 						inode->i_sb->s_time_gran);
+@@ -161,7 +188,8 @@ int notify_change(struct dentry * dentry
+ 			error = security_inode_setattr(dentry, attr);
+ 		if (!error) {
+ 			if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
+-			    (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid))
++			    (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid) ||
++			    (ia_valid & ATTR_XID && attr->ia_xid != inode->i_xid))
+ 				error = DQUOT_TRANSFER(inode, attr) ? -EDQUOT : 0;
+ 			if (!error)
+ 				error = inode_setattr(inode, attr);
+Index: vserver-sources-2.0.1_2.6.15/fs/binfmt_aout.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/binfmt_aout.c
++++ vserver-sources-2.0.1_2.6.15/fs/binfmt_aout.c
+@@ -24,6 +24,7 @@
+ #include <linux/binfmts.h>
+ #include <linux/personality.h>
+ #include <linux/init.h>
++#include <linux/vs_memory.h>
+ 
+ #include <asm/system.h>
+ #include <asm/uaccess.h>
+Index: vserver-sources-2.0.1_2.6.15/fs/binfmt_elf.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/binfmt_elf.c
++++ vserver-sources-2.0.1_2.6.15/fs/binfmt_elf.c
+@@ -38,6 +38,7 @@
+ #include <linux/security.h>
+ #include <linux/syscalls.h>
+ #include <linux/random.h>
++#include <linux/vs_memory.h>
+ 
+ #include <asm/uaccess.h>
+ #include <asm/param.h>
+Index: vserver-sources-2.0.1_2.6.15/fs/binfmt_flat.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/binfmt_flat.c
++++ vserver-sources-2.0.1_2.6.15/fs/binfmt_flat.c
+@@ -36,6 +36,7 @@
+ #include <linux/personality.h>
+ #include <linux/init.h>
+ #include <linux/flat.h>
++#include <linux/vs_memory.h>
+ 
+ #include <asm/byteorder.h>
+ #include <asm/system.h>
+Index: vserver-sources-2.0.1_2.6.15/fs/binfmt_som.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/binfmt_som.c
++++ vserver-sources-2.0.1_2.6.15/fs/binfmt_som.c
+@@ -28,6 +28,7 @@
+ #include <linux/shm.h>
+ #include <linux/personality.h>
+ #include <linux/init.h>
++#include <linux/vs_memory.h>
+ 
+ #include <asm/uaccess.h>
+ #include <asm/pgtable.h>
+Index: vserver-sources-2.0.1_2.6.15/fs/devpts/inode.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/devpts/inode.c
++++ vserver-sources-2.0.1_2.6.15/fs/devpts/inode.c
+@@ -19,7 +19,19 @@
+ #include <linux/tty.h>
+ #include <linux/devpts_fs.h>
+ 
+-#define DEVPTS_SUPER_MAGIC 0x1cd1
++
++static int devpts_permission(struct inode *inode, int mask, struct nameidata *nd)
++{
++	int ret = -EACCES;
++
++	if (vx_check(inode->i_xid, VX_IDENT))
++		ret = generic_permission(inode, mask, NULL);
++	return ret;
++}
++
++static struct inode_operations devpts_file_inode_operations = {
++	.permission     = devpts_permission,
++};
+ 
+ static struct vfsmount *devpts_mnt;
+ static struct dentry *devpts_root;
+@@ -69,6 +81,24 @@ static int devpts_remount(struct super_b
+ 	return 0;
+ }
+ 
++static int devpts_filter(struct dentry *de)
++{
++	return vx_check(de->d_inode->i_xid, VX_IDENT);
++}
++
++static int devpts_readdir(struct file * filp, void * dirent, filldir_t filldir)
++{
++	return dcache_readdir_filter(filp, dirent, filldir, devpts_filter);
++}
++
++static struct file_operations devpts_dir_operations = {
++	.open		= dcache_dir_open,
++	.release	= dcache_dir_close,
++	.llseek		= dcache_dir_lseek,
++	.read		= generic_read_dir,
++	.readdir	= devpts_readdir,
++};
++
+ static struct super_operations devpts_sops = {
+ 	.statfs		= simple_statfs,
+ 	.remount_fs	= devpts_remount,
+@@ -95,8 +125,9 @@ devpts_fill_super(struct super_block *s,
+ 	inode->i_uid = inode->i_gid = 0;
+ 	inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR;
+ 	inode->i_op = &simple_dir_inode_operations;
+-	inode->i_fop = &simple_dir_operations;
++	inode->i_fop = &devpts_dir_operations;
+ 	inode->i_nlink = 2;
++	inode->i_xid = vx_current_xid();
+ 
+ 	devpts_root = s->s_root = d_alloc_root(inode);
+ 	if (s->s_root)
+@@ -155,6 +186,8 @@ int devpts_pty_new(struct tty_struct *tt
+ 	inode->i_gid = config.setgid ? config.gid : current->fsgid;
+ 	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
+ 	init_special_inode(inode, S_IFCHR|config.mode, device);
++	inode->i_xid = vx_current_xid();
++	inode->i_op = &devpts_file_inode_operations;
+ 	inode->u.generic_ip = tty;
+ 
+ 	dentry = get_node(number);
+Index: vserver-sources-2.0.1_2.6.15/fs/exec.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/exec.c
++++ vserver-sources-2.0.1_2.6.15/fs/exec.c
+@@ -49,6 +49,7 @@
+ #include <linux/rmap.h>
+ #include <linux/acct.h>
+ #include <linux/cn_proc.h>
++#include <linux/vs_memory.h>
+ 
+ #include <asm/uaccess.h>
+ #include <asm/mmu_context.h>
+@@ -436,7 +437,8 @@ int setup_arg_pages(struct linux_binprm 
+ 			kmem_cache_free(vm_area_cachep, mpnt);
+ 			return ret;
+ 		}
+-		mm->stack_vm = mm->total_vm = vma_pages(mpnt);
++		vx_vmpages_sub(mm, mm->total_vm - vma_pages(mpnt));
++		mm->stack_vm = mm->total_vm;
+ 	}
+ 
+ 	for (i = 0 ; i < MAX_ARG_PAGES ; i++) {
+Index: vserver-sources-2.0.1_2.6.15/fs/ext2/balloc.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/ext2/balloc.c
++++ vserver-sources-2.0.1_2.6.15/fs/ext2/balloc.c
+@@ -16,6 +16,7 @@
+ #include <linux/quotaops.h>
+ #include <linux/sched.h>
+ #include <linux/buffer_head.h>
++#include <linux/vs_dlimit.h>
+ 
+ /*
+  * balloc.c contains the blocks allocation and deallocation routines
+@@ -108,6 +109,8 @@ static int reserve_blocks(struct super_b
+ 	free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
+ 	root_blocks = le32_to_cpu(es->s_r_blocks_count);
+ 
++	DLIMIT_ADJUST_BLOCK(sb, vx_current_xid(), &free_blocks, &root_blocks);
++
+ 	if (free_blocks < count)
+ 		count = free_blocks;
+ 
+@@ -258,6 +261,7 @@ do_more:
+ 	}
+ error_return:
+ 	brelse(bitmap_bh);
++	DLIMIT_FREE_BLOCK(inode, freed);
+ 	release_blocks(sb, freed);
+ 	DQUOT_FREE_BLOCK(inode, freed);
+ }
+@@ -361,6 +365,10 @@ int ext2_new_block(struct inode *inode, 
+ 		*err = -ENOSPC;
+ 		goto out_dquot;
+ 	}
++	if (DLIMIT_ALLOC_BLOCK(inode, es_alloc)) {
++		*err = -ENOSPC;
++		goto out_dlimit;
++	}
+ 
+ 	ext2_debug ("goal=%lu.\n", goal);
+ 
+@@ -508,6 +516,8 @@ got_block:
+ 	*err = 0;
+ out_release:
+ 	group_release_blocks(sb, group_no, desc, gdp_bh, group_alloc);
++	DLIMIT_FREE_BLOCK(inode, es_alloc);
++out_dlimit:
+ 	release_blocks(sb, es_alloc);
+ out_dquot:
+ 	DQUOT_FREE_BLOCK(inode, dq_alloc);
+Index: vserver-sources-2.0.1_2.6.15/fs/ext2/ext2.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/ext2/ext2.h
++++ vserver-sources-2.0.1_2.6.15/fs/ext2/ext2.h
+@@ -162,6 +162,7 @@ extern struct file_operations ext2_xip_f
+ extern struct address_space_operations ext2_aops;
+ extern struct address_space_operations ext2_aops_xip;
+ extern struct address_space_operations ext2_nobh_aops;
++extern int ext2_sync_flags(struct inode *inode);
+ 
+ /* namei.c */
+ extern struct inode_operations ext2_dir_inode_operations;
+Index: vserver-sources-2.0.1_2.6.15/fs/ext2/file.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/ext2/file.c
++++ vserver-sources-2.0.1_2.6.15/fs/ext2/file.c
+@@ -79,4 +79,5 @@ struct inode_operations ext2_file_inode_
+ #endif
+ 	.setattr	= ext2_setattr,
+ 	.permission	= ext2_permission,
++	.sync_flags	= ext2_sync_flags,
+ };
+Index: vserver-sources-2.0.1_2.6.15/fs/ext2/ialloc.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/ext2/ialloc.c
++++ vserver-sources-2.0.1_2.6.15/fs/ext2/ialloc.c
+@@ -18,6 +18,8 @@
+ #include <linux/backing-dev.h>
+ #include <linux/buffer_head.h>
+ #include <linux/random.h>
++#include <linux/vs_dlimit.h>
++#include <linux/vserver/xid.h>
+ #include "ext2.h"
+ #include "xattr.h"
+ #include "acl.h"
+@@ -126,6 +128,7 @@ void ext2_free_inode (struct inode * ino
+ 		ext2_xattr_delete_inode(inode);
+ 	    	DQUOT_FREE_INODE(inode);
+ 		DQUOT_DROP(inode);
++		DLIMIT_FREE_INODE(inode);
+ 	}
+ 
+ 	es = EXT2_SB(sb)->s_es;
+@@ -465,6 +468,11 @@ struct inode *ext2_new_inode(struct inod
+ 	if (!inode)
+ 		return ERR_PTR(-ENOMEM);
+ 
++	inode->i_xid = vx_current_fsxid(sb);
++	if (DLIMIT_ALLOC_INODE(inode)) {
++		err = -ENOSPC;
++		goto fail_dlim;
++	}
+ 	ei = EXT2_I(inode);
+ 	sbi = EXT2_SB(sb);
+ 	es = sbi->s_es;
+@@ -579,7 +587,8 @@ got:
+ 	inode->i_blocks = 0;
+ 	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
+ 	memset(ei->i_data, 0, sizeof(ei->i_data));
+-	ei->i_flags = EXT2_I(dir)->i_flags & ~EXT2_BTREE_FL;
++	ei->i_flags = EXT2_I(dir)->i_flags &
++		~(EXT2_BTREE_FL|EXT2_IUNLINK_FL|EXT2_BARRIER_FL);
+ 	if (S_ISLNK(mode))
+ 		ei->i_flags &= ~(EXT2_IMMUTABLE_FL|EXT2_APPEND_FL);
+ 	/* dirsync is only applied to directories */
+@@ -605,7 +614,7 @@ got:
+ 	insert_inode_hash(inode);
+ 
+ 	if (DQUOT_ALLOC_INODE(inode)) {
+-		err = -ENOSPC;
++		err = -EDQUOT;
+ 		goto fail_drop;
+ 	}
+ 
+@@ -627,12 +636,15 @@ fail_free_drop:
+ 
+ fail_drop:
+ 	DQUOT_DROP(inode);
++	DLIMIT_FREE_INODE(inode);
+ 	inode->i_flags |= S_NOQUOTA;
+ 	inode->i_nlink = 0;
+ 	iput(inode);
+ 	return ERR_PTR(err);
+ 
+ fail:
++	DLIMIT_FREE_INODE(inode);
++fail_dlim:
+ 	make_bad_inode(inode);
+ 	iput(inode);
+ 	return ERR_PTR(err);
+Index: vserver-sources-2.0.1_2.6.15/fs/ext2/inode.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/ext2/inode.c
++++ vserver-sources-2.0.1_2.6.15/fs/ext2/inode.c
+@@ -31,6 +31,7 @@
+ #include <linux/writeback.h>
+ #include <linux/buffer_head.h>
+ #include <linux/mpage.h>
++#include <linux/vserver/xid.h>
+ #include "ext2.h"
+ #include "acl.h"
+ #include "xip.h"
+@@ -66,6 +67,8 @@ void ext2_put_inode(struct inode *inode)
+ 		ext2_discard_prealloc(inode);
+ }
+ 
++static void ext2_truncate_nocheck (struct inode * inode);
++
+ /*
+  * Called at the last iput() if i_nlink is zero.
+  */
+@@ -81,7 +84,7 @@ void ext2_delete_inode (struct inode * i
+ 
+ 	inode->i_size = 0;
+ 	if (inode->i_blocks)
+-		ext2_truncate (inode);
++		ext2_truncate_nocheck(inode);
+ 	ext2_free_inode (inode);
+ 
+ 	return;
+@@ -906,7 +909,7 @@ static void ext2_free_branches(struct in
+ 		ext2_free_data(inode, p, q);
+ }
+ 
+-void ext2_truncate (struct inode * inode)
++static void ext2_truncate_nocheck(struct inode * inode)
+ {
+ 	__le32 *i_data = EXT2_I(inode)->i_data;
+ 	int addr_per_block = EXT2_ADDR_PER_BLOCK(inode->i_sb);
+@@ -923,8 +926,6 @@ void ext2_truncate (struct inode * inode
+ 		return;
+ 	if (ext2_inode_is_fast_symlink(inode))
+ 		return;
+-	if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
+-		return;
+ 
+ 	ext2_discard_prealloc(inode);
+ 
+@@ -1048,29 +1049,81 @@ Egdp:
+ 	return ERR_PTR(-EIO);
+ }
+ 
++void ext2_truncate (struct inode * inode)
++{
++	if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
++		return;
++	ext2_truncate_nocheck(inode);
++}
++
+ void ext2_set_inode_flags(struct inode *inode)
+ {
+ 	unsigned int flags = EXT2_I(inode)->i_flags;
+ 
+-	inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
++	inode->i_flags &= ~(S_IMMUTABLE | S_IUNLINK | S_BARRIER |
++		S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
++
++	if (flags & EXT2_IMMUTABLE_FL)
++		inode->i_flags |= S_IMMUTABLE;
++	if (flags & EXT2_IUNLINK_FL)
++		inode->i_flags |= S_IUNLINK;
++	if (flags & EXT2_BARRIER_FL)
++		inode->i_flags |= S_BARRIER;
++
+ 	if (flags & EXT2_SYNC_FL)
+ 		inode->i_flags |= S_SYNC;
+ 	if (flags & EXT2_APPEND_FL)
+ 		inode->i_flags |= S_APPEND;
+-	if (flags & EXT2_IMMUTABLE_FL)
+-		inode->i_flags |= S_IMMUTABLE;
+ 	if (flags & EXT2_NOATIME_FL)
+ 		inode->i_flags |= S_NOATIME;
+ 	if (flags & EXT2_DIRSYNC_FL)
+ 		inode->i_flags |= S_DIRSYNC;
+ }
+ 
++int ext2_sync_flags(struct inode *inode)
++{
++	unsigned int oldflags, newflags;
++
++	oldflags = EXT2_I(inode)->i_flags;
++	newflags = oldflags & ~(EXT2_APPEND_FL |
++		EXT2_IMMUTABLE_FL | EXT2_IUNLINK_FL |
++		EXT2_BARRIER_FL | EXT2_NOATIME_FL |
++		EXT2_SYNC_FL | EXT2_DIRSYNC_FL);
++
++	if (IS_APPEND(inode))
++		newflags |= EXT2_APPEND_FL;
++	if (IS_IMMUTABLE(inode))
++		newflags |= EXT2_IMMUTABLE_FL;
++	if (IS_IUNLINK(inode))
++		newflags |= EXT2_IUNLINK_FL;
++	if (IS_BARRIER(inode))
++		newflags |= EXT2_BARRIER_FL;
++
++	/* we do not want to copy superblock flags */
++	if (inode->i_flags & S_NOATIME)
++		newflags |= EXT2_NOATIME_FL;
++	if (inode->i_flags & S_SYNC)
++		newflags |= EXT2_SYNC_FL;
++	if (inode->i_flags & S_DIRSYNC)
++		newflags |= EXT2_DIRSYNC_FL;
++
++	if (oldflags ^ newflags) {
++		EXT2_I(inode)->i_flags = newflags;
++		inode->i_ctime = CURRENT_TIME;
++		mark_inode_dirty(inode);
++	}
++
++	return 0;
++}
++
+ void ext2_read_inode (struct inode * inode)
+ {
+ 	struct ext2_inode_info *ei = EXT2_I(inode);
+ 	ino_t ino = inode->i_ino;
+ 	struct buffer_head * bh;
+ 	struct ext2_inode * raw_inode = ext2_get_inode(inode->i_sb, ino, &bh);
++	uid_t uid;
++	gid_t gid;
+ 	int n;
+ 
+ #ifdef CONFIG_EXT2_FS_POSIX_ACL
+@@ -1081,12 +1134,17 @@ void ext2_read_inode (struct inode * ino
+  		goto bad_inode;
+ 
+ 	inode->i_mode = le16_to_cpu(raw_inode->i_mode);
+-	inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
+-	inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
++	uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
++	gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
+ 	if (!(test_opt (inode->i_sb, NO_UID32))) {
+-		inode->i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
+-		inode->i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
++		uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
++		gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
+ 	}
++	inode->i_uid = INOXID_UID(XID_TAG(inode), uid, gid);
++	inode->i_gid = INOXID_GID(XID_TAG(inode), uid, gid);
++	inode->i_xid = INOXID_XID(XID_TAG(inode), uid, gid,
++		le16_to_cpu(raw_inode->i_raw_xid));
++
+ 	inode->i_nlink = le16_to_cpu(raw_inode->i_links_count);
+ 	inode->i_size = le32_to_cpu(raw_inode->i_size);
+ 	inode->i_atime.tv_sec = le32_to_cpu(raw_inode->i_atime);
+@@ -1184,8 +1242,8 @@ static int ext2_update_inode(struct inod
+ 	struct ext2_inode_info *ei = EXT2_I(inode);
+ 	struct super_block *sb = inode->i_sb;
+ 	ino_t ino = inode->i_ino;
+-	uid_t uid = inode->i_uid;
+-	gid_t gid = inode->i_gid;
++	uid_t uid = XIDINO_UID(XID_TAG(inode), inode->i_uid, inode->i_xid);
++	gid_t gid = XIDINO_GID(XID_TAG(inode), inode->i_gid, inode->i_xid);
+ 	struct buffer_head * bh;
+ 	struct ext2_inode * raw_inode = ext2_get_inode(sb, ino, &bh);
+ 	int n;
+@@ -1220,6 +1278,9 @@ static int ext2_update_inode(struct inod
+ 		raw_inode->i_uid_high = 0;
+ 		raw_inode->i_gid_high = 0;
+ 	}
++#ifdef CONFIG_INOXID_INTERN
++	raw_inode->i_raw_xid = cpu_to_le16(inode->i_xid);
++#endif
+ 	raw_inode->i_links_count = cpu_to_le16(inode->i_nlink);
+ 	raw_inode->i_size = cpu_to_le32(inode->i_size);
+ 	raw_inode->i_atime = cpu_to_le32(inode->i_atime.tv_sec);
+@@ -1306,11 +1367,13 @@ int ext2_setattr(struct dentry *dentry, 
+ 	if (error)
+ 		return error;
+ 	if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) ||
+-	    (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) {
++	    (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid) ||
++	    (iattr->ia_valid & ATTR_XID && iattr->ia_xid != inode->i_xid)) {
+ 		error = DQUOT_TRANSFER(inode, iattr) ? -EDQUOT : 0;
+ 		if (error)
+ 			return error;
+ 	}
++
+ 	error = inode_setattr(inode, iattr);
+ 	if (!error && (iattr->ia_valid & ATTR_MODE))
+ 		error = ext2_acl_chmod(inode);
+Index: vserver-sources-2.0.1_2.6.15/fs/ext2/ioctl.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/ext2/ioctl.c
++++ vserver-sources-2.0.1_2.6.15/fs/ext2/ioctl.c
+@@ -49,7 +49,9 @@ int ext2_ioctl (struct inode * inode, st
+ 		 *
+ 		 * This test looks nicer. Thanks to Pauline Middelink
+ 		 */
+-		if ((flags ^ oldflags) & (EXT2_APPEND_FL | EXT2_IMMUTABLE_FL)) {
++		if ((oldflags & EXT2_IMMUTABLE_FL) ||
++			((flags ^ oldflags) & (EXT2_APPEND_FL |
++			EXT2_IMMUTABLE_FL | EXT2_IUNLINK_FL))) {
+ 			if (!capable(CAP_LINUX_IMMUTABLE))
+ 				return -EPERM;
+ 		}
+Index: vserver-sources-2.0.1_2.6.15/fs/ext2/namei.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/ext2/namei.c
++++ vserver-sources-2.0.1_2.6.15/fs/ext2/namei.c
+@@ -31,6 +31,7 @@
+  */
+ 
+ #include <linux/pagemap.h>
++#include <linux/vserver/xid.h>
+ #include "ext2.h"
+ #include "xattr.h"
+ #include "acl.h"
+@@ -82,6 +83,7 @@ static struct dentry *ext2_lookup(struct
+ 		inode = iget(dir->i_sb, ino);
+ 		if (!inode)
+ 			return ERR_PTR(-EACCES);
++		vx_propagate_xid(nd, inode);
+ 	}
+ 	if (inode)
+ 		return d_splice_alias(inode, dentry);
+@@ -410,6 +412,7 @@ struct inode_operations ext2_dir_inode_o
+ #endif
+ 	.setattr	= ext2_setattr,
+ 	.permission	= ext2_permission,
++	.sync_flags	= ext2_sync_flags,
+ };
+ 
+ struct inode_operations ext2_special_inode_operations = {
+@@ -421,4 +424,5 @@ struct inode_operations ext2_special_ino
+ #endif
+ 	.setattr	= ext2_setattr,
+ 	.permission	= ext2_permission,
++	.sync_flags	= ext2_sync_flags,
+ };
+Index: vserver-sources-2.0.1_2.6.15/fs/ext2/super.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/ext2/super.c
++++ vserver-sources-2.0.1_2.6.15/fs/ext2/super.c
+@@ -284,7 +284,7 @@ enum {
+ 	Opt_err_ro, Opt_nouid32, Opt_nocheck, Opt_debug,
+ 	Opt_oldalloc, Opt_orlov, Opt_nobh, Opt_user_xattr, Opt_nouser_xattr,
+ 	Opt_acl, Opt_noacl, Opt_xip, Opt_ignore, Opt_err, Opt_quota,
+-	Opt_usrquota, Opt_grpquota
++	Opt_usrquota, Opt_grpquota, Opt_tagxid
+ };
+ 
+ static match_table_t tokens = {
+@@ -312,6 +312,7 @@ static match_table_t tokens = {
+ 	{Opt_acl, "acl"},
+ 	{Opt_noacl, "noacl"},
+ 	{Opt_xip, "xip"},
++	{Opt_tagxid, "tagxid"},
+ 	{Opt_grpquota, "grpquota"},
+ 	{Opt_ignore, "noquota"},
+ 	{Opt_quota, "quota"},
+@@ -375,6 +376,11 @@ static int parse_options (char * options
+ 		case Opt_nouid32:
+ 			set_opt (sbi->s_mount_opt, NO_UID32);
+ 			break;
++#ifndef CONFIG_INOXID_NONE
++		case Opt_tagxid:
++			set_opt (sbi->s_mount_opt, TAGXID);
++			break;
++#endif
+ 		case Opt_nocheck:
+ 			clear_opt (sbi->s_mount_opt, CHECK);
+ 			break;
+@@ -676,6 +682,8 @@ static int ext2_fill_super(struct super_
+ 	if (!parse_options ((char *) data, sbi))
+ 		goto failed_mount;
+ 
++	if (EXT2_SB(sb)->s_mount_opt & EXT2_MOUNT_TAGXID)
++		sb->s_flags |= MS_TAGXID;
+ 	sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
+ 		((EXT2_SB(sb)->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ?
+ 		 MS_POSIXACL : 0);
+@@ -985,6 +993,13 @@ static int ext2_remount (struct super_bl
+ 		goto restore_opts;
+ 	}
+ 
++	if ((sbi->s_mount_opt & EXT2_MOUNT_TAGXID) &&
++		!(sb->s_flags & MS_TAGXID)) {
++		printk("EXT2-fs: %s: tagxid not permitted on remount.\n",
++		       sb->s_id);
++		return -EINVAL;
++	}
++
+ 	sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
+ 		((sbi->s_mount_opt & EXT2_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
+ 
+Index: vserver-sources-2.0.1_2.6.15/fs/ext2/symlink.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/ext2/symlink.c
++++ vserver-sources-2.0.1_2.6.15/fs/ext2/symlink.c
+@@ -38,6 +38,7 @@ struct inode_operations ext2_symlink_ino
+ 	.listxattr	= ext2_listxattr,
+ 	.removexattr	= generic_removexattr,
+ #endif
++	.sync_flags	= ext2_sync_flags,
+ };
+  
+ struct inode_operations ext2_fast_symlink_inode_operations = {
+@@ -49,4 +50,5 @@ struct inode_operations ext2_fast_symlin
+ 	.listxattr	= ext2_listxattr,
+ 	.removexattr	= generic_removexattr,
+ #endif
++	.sync_flags	= ext2_sync_flags,
+ };
+Index: vserver-sources-2.0.1_2.6.15/fs/ext2/xattr.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/ext2/xattr.c
++++ vserver-sources-2.0.1_2.6.15/fs/ext2/xattr.c
+@@ -60,6 +60,7 @@
+ #include <linux/mbcache.h>
+ #include <linux/quotaops.h>
+ #include <linux/rwsem.h>
++#include <linux/vs_dlimit.h>
+ #include "ext2.h"
+ #include "xattr.h"
+ #include "acl.h"
+@@ -649,8 +650,12 @@ ext2_xattr_set2(struct inode *inode, str
+ 				   the inode.  */
+ 				ea_bdebug(new_bh, "reusing block");
+ 
++				error = -ENOSPC;
++				if (DLIMIT_ALLOC_BLOCK(inode, 1))
++					goto cleanup;
+ 				error = -EDQUOT;
+ 				if (DQUOT_ALLOC_BLOCK(inode, 1)) {
++					DLIMIT_FREE_BLOCK(inode, 1);
+ 					unlock_buffer(new_bh);
+ 					goto cleanup;
+ 				}
+@@ -744,6 +749,7 @@ ext2_xattr_set2(struct inode *inode, str
+ 				le32_to_cpu(HDR(old_bh)->h_refcount) - 1);
+ 			if (ce)
+ 				mb_cache_entry_release(ce);
++			DLIMIT_FREE_BLOCK(inode, 1);
+ 			DQUOT_FREE_BLOCK(inode, 1);
+ 			mark_buffer_dirty(old_bh);
+ 			ea_bdebug(old_bh, "refcount now=%d",
+@@ -808,6 +814,7 @@ ext2_xattr_delete_inode(struct inode *in
+ 		mark_buffer_dirty(bh);
+ 		if (IS_SYNC(inode))
+ 			sync_dirty_buffer(bh);
++		DLIMIT_FREE_BLOCK(inode, 1);
+ 		DQUOT_FREE_BLOCK(inode, 1);
+ 	}
+ 	EXT2_I(inode)->i_file_acl = 0;
+Index: vserver-sources-2.0.1_2.6.15/fs/ext3/balloc.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/ext3/balloc.c
++++ vserver-sources-2.0.1_2.6.15/fs/ext3/balloc.c
+@@ -19,6 +19,7 @@
+ #include <linux/ext3_jbd.h>
+ #include <linux/quotaops.h>
+ #include <linux/buffer_head.h>
++#include <linux/vs_dlimit.h>
+ 
+ #include "bitmap.h"
+ 
+@@ -505,8 +506,10 @@ void ext3_free_blocks(handle_t *handle, 
+ 		return;
+ 	}
+ 	ext3_free_blocks_sb(handle, sb, block, count, &dquot_freed_blocks);
+-	if (dquot_freed_blocks)
++	if (dquot_freed_blocks) {
++		DLIMIT_FREE_BLOCK(inode, dquot_freed_blocks);
+ 		DQUOT_FREE_BLOCK(inode, dquot_freed_blocks);
++	}
+ 	return;
+ }
+ 
+@@ -1117,18 +1120,32 @@ out:
+ 	return ret;
+ }
+ 
+-static int ext3_has_free_blocks(struct ext3_sb_info *sbi)
++static int ext3_has_free_blocks(struct super_block *sb)
+ {
+-	int free_blocks, root_blocks;
++	struct ext3_sb_info *sbi = EXT3_SB(sb);
++	int free_blocks, root_blocks, cond;
+ 
+ 	free_blocks = percpu_counter_read_positive(&sbi->s_freeblocks_counter);
+ 	root_blocks = le32_to_cpu(sbi->s_es->s_r_blocks_count);
+-	if (free_blocks < root_blocks + 1 && !capable(CAP_SYS_RESOURCE) &&
++
++	vxdprintk(VXD_CBIT(dlim, 3),
++		"ext3_has_free_blocks(%p): free=%u, root=%u",
++		sb, free_blocks, root_blocks);
++
++	DLIMIT_ADJUST_BLOCK(sb, vx_current_xid(), &free_blocks, &root_blocks);
++
++	cond = (free_blocks < root_blocks + 1 &&
++		!capable(CAP_SYS_RESOURCE) &&
+ 		sbi->s_resuid != current->fsuid &&
+-		(sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid))) {
+-		return 0;
+-	}
+-	return 1;
++		(sbi->s_resgid == 0 || !in_group_p (sbi->s_resgid)));
++
++	vxdprintk(VXD_CBIT(dlim, 3),
++		"ext3_has_free_blocks(%p): %u<%u+1, %c, %u!=%u r=%d",
++		sb, free_blocks, root_blocks,
++		!capable(CAP_SYS_RESOURCE)?'1':'0',
++		sbi->s_resuid, current->fsuid, cond?0:1);
++
++	return (cond ? 0 : 1);
+ }
+ 
+ /*
+@@ -1139,7 +1156,7 @@ static int ext3_has_free_blocks(struct e
+  */
+ int ext3_should_retry_alloc(struct super_block *sb, int *retries)
+ {
+-	if (!ext3_has_free_blocks(EXT3_SB(sb)) || (*retries)++ > 3)
++	if (!ext3_has_free_blocks(sb) || (*retries)++ > 3)
+ 		return 0;
+ 
+ 	jbd_debug(1, "%s: retrying operation after ENOSPC\n", sb->s_id);
+@@ -1194,6 +1211,8 @@ int ext3_new_block(handle_t *handle, str
+ 		*errp = -EDQUOT;
+ 		return 0;
+ 	}
++	if (DLIMIT_ALLOC_BLOCK(inode, 1))
++	    goto out_dlimit;
+ 
+ 	sbi = EXT3_SB(sb);
+ 	es = EXT3_SB(sb)->s_es;
+@@ -1210,7 +1229,7 @@ int ext3_new_block(handle_t *handle, str
+ 	if (block_i && ((windowsz = block_i->rsv_window_node.rsv_goal_size) > 0))
+ 		my_rsv = &block_i->rsv_window_node;
+ 
+-	if (!ext3_has_free_blocks(sbi)) {
++	if (!ext3_has_free_blocks(sb)) {
+ 		*errp = -ENOSPC;
+ 		goto out;
+ 	}
+@@ -1394,6 +1413,9 @@ allocated:
+ io_error:
+ 	*errp = -EIO;
+ out:
++	if (!performed_allocation)
++		DLIMIT_FREE_BLOCK(inode, 1);
++out_dlimit:
+ 	if (fatal) {
+ 		*errp = fatal;
+ 		ext3_std_error(sb, fatal);
+Index: vserver-sources-2.0.1_2.6.15/fs/ext3/file.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/ext3/file.c
++++ vserver-sources-2.0.1_2.6.15/fs/ext3/file.c
+@@ -131,5 +131,6 @@ struct inode_operations ext3_file_inode_
+ 	.removexattr	= generic_removexattr,
+ #endif
+ 	.permission	= ext3_permission,
++	.sync_flags	= ext3_sync_flags,
+ };
+ 
+Index: vserver-sources-2.0.1_2.6.15/fs/ext3/ialloc.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/ext3/ialloc.c
++++ vserver-sources-2.0.1_2.6.15/fs/ext3/ialloc.c
+@@ -23,6 +23,8 @@
+ #include <linux/buffer_head.h>
+ #include <linux/random.h>
+ #include <linux/bitops.h>
++#include <linux/vs_dlimit.h>
++#include <linux/vserver/xid.h>
+ 
+ #include <asm/byteorder.h>
+ 
+@@ -128,6 +130,7 @@ void ext3_free_inode (handle_t *handle, 
+ 	ext3_xattr_delete_inode(handle, inode);
+ 	DQUOT_FREE_INODE(inode);
+ 	DQUOT_DROP(inode);
++	DLIMIT_FREE_INODE(inode);
+ 
+ 	is_directory = S_ISDIR(inode->i_mode);
+ 
+@@ -444,6 +447,12 @@ struct inode *ext3_new_inode(handle_t *h
+ 	inode = new_inode(sb);
+ 	if (!inode)
+ 		return ERR_PTR(-ENOMEM);
++
++	inode->i_xid = vx_current_fsxid(sb);
++	if (DLIMIT_ALLOC_INODE(inode)) {
++		err = -ENOSPC;
++		goto out_dlimit;
++	}
+ 	ei = EXT3_I(inode);
+ 
+ 	sbi = EXT3_SB(sb);
+@@ -566,7 +575,8 @@ got:
+ 	ei->i_dir_start_lookup = 0;
+ 	ei->i_disksize = 0;
+ 
+-	ei->i_flags = EXT3_I(dir)->i_flags & ~EXT3_INDEX_FL;
++	ei->i_flags = EXT3_I(dir)->i_flags &
++		~(EXT3_INDEX_FL|EXT3_IUNLINK_FL|EXT3_BARRIER_FL);
+ 	if (S_ISLNK(mode))
+ 		ei->i_flags &= ~(EXT3_IMMUTABLE_FL|EXT3_APPEND_FL);
+ 	/* dirsync only applies to directories */
+@@ -621,6 +631,8 @@ got:
+ fail:
+ 	ext3_std_error(sb, err);
+ out:
++	DLIMIT_FREE_INODE(inode);
++out_dlimit:
+ 	iput(inode);
+ 	ret = ERR_PTR(err);
+ really_out:
+@@ -632,6 +644,7 @@ fail_free_drop:
+ 
+ fail_drop:
+ 	DQUOT_DROP(inode);
++	DLIMIT_FREE_INODE(inode);
+ 	inode->i_flags |= S_NOQUOTA;
+ 	inode->i_nlink = 0;
+ 	iput(inode);
+Index: vserver-sources-2.0.1_2.6.15/fs/ext3/inode.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/ext3/inode.c
++++ vserver-sources-2.0.1_2.6.15/fs/ext3/inode.c
+@@ -36,6 +36,7 @@
+ #include <linux/writeback.h>
+ #include <linux/mpage.h>
+ #include <linux/uio.h>
++#include <linux/vserver/xid.h>
+ #include "xattr.h"
+ #include "acl.h"
+ 
+@@ -180,6 +181,8 @@ static int ext3_journal_test_restart(han
+ 	return ext3_journal_restart(handle, blocks_for_truncate(inode));
+ }
+ 
++static void ext3_truncate_nocheck (struct inode *inode);
++
+ /*
+  * Called at the last iput() if i_nlink is zero.
+  */
+@@ -205,7 +208,7 @@ void ext3_delete_inode (struct inode * i
+ 		handle->h_sync = 1;
+ 	inode->i_size = 0;
+ 	if (inode->i_blocks)
+-		ext3_truncate(inode);
++		ext3_truncate_nocheck(inode);
+ 	/*
+ 	 * Kill off the orphan record which ext3_truncate created.
+ 	 * AKPM: I think this can be inside the above `if'.
+@@ -2076,7 +2079,7 @@ static void ext3_free_branches(handle_t 
+  * ext3_truncate() run will find them and release them.
+  */
+ 
+-void ext3_truncate(struct inode * inode)
++void ext3_truncate_nocheck(struct inode * inode)
+ {
+ 	handle_t *handle;
+ 	struct ext3_inode_info *ei = EXT3_I(inode);
+@@ -2097,8 +2100,6 @@ void ext3_truncate(struct inode * inode)
+ 		return;
+ 	if (ext3_inode_is_fast_symlink(inode))
+ 		return;
+-	if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
+-		return;
+ 
+ 	/*
+ 	 * We have to lock the EOF page here, because lock_page() nests
+@@ -2417,23 +2418,88 @@ int ext3_get_inode_loc(struct inode *ino
+ 		!(EXT3_I(inode)->i_state & EXT3_STATE_XATTR));
+ }
+ 
++void ext3_truncate(struct inode * inode)
++{
++	if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
++		return;
++	ext3_truncate_nocheck(inode);
++}
++
+ void ext3_set_inode_flags(struct inode *inode)
+ {
+ 	unsigned int flags = EXT3_I(inode)->i_flags;
+ 
+-	inode->i_flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
++	inode->i_flags &= ~(S_IMMUTABLE | S_IUNLINK | S_BARRIER |
++		S_SYNC | S_APPEND | S_NOATIME | S_DIRSYNC);
++
++	if (flags & EXT3_IMMUTABLE_FL)
++		inode->i_flags |= S_IMMUTABLE;
++	if (flags & EXT3_IUNLINK_FL)
++		inode->i_flags |= S_IUNLINK;
++	if (flags & EXT3_BARRIER_FL)
++		inode->i_flags |= S_BARRIER;
++
+ 	if (flags & EXT3_SYNC_FL)
+ 		inode->i_flags |= S_SYNC;
+ 	if (flags & EXT3_APPEND_FL)
+ 		inode->i_flags |= S_APPEND;
+-	if (flags & EXT3_IMMUTABLE_FL)
+-		inode->i_flags |= S_IMMUTABLE;
+ 	if (flags & EXT3_NOATIME_FL)
+ 		inode->i_flags |= S_NOATIME;
+ 	if (flags & EXT3_DIRSYNC_FL)
+ 		inode->i_flags |= S_DIRSYNC;
+ }
+ 
++int ext3_sync_flags(struct inode *inode)
++{
++	unsigned int oldflags, newflags;
++	int err = 0;
++
++	oldflags = EXT3_I(inode)->i_flags;
++	newflags = oldflags & ~(EXT3_APPEND_FL |
++		EXT3_IMMUTABLE_FL | EXT3_IUNLINK_FL |
++		EXT3_BARRIER_FL | EXT3_NOATIME_FL |
++		EXT3_SYNC_FL | EXT3_DIRSYNC_FL);
++
++	if (IS_APPEND(inode))
++		newflags |= EXT3_APPEND_FL;
++	if (IS_IMMUTABLE(inode))
++		newflags |= EXT3_IMMUTABLE_FL;
++	if (IS_IUNLINK(inode))
++		newflags |= EXT3_IUNLINK_FL;
++	if (IS_BARRIER(inode))
++		newflags |= EXT3_BARRIER_FL;
++
++	/* we do not want to copy superblock flags */
++	if (inode->i_flags & S_NOATIME)
++		newflags |= EXT3_NOATIME_FL;
++	if (inode->i_flags & S_SYNC)
++		newflags |= EXT3_SYNC_FL;
++	if (inode->i_flags & S_DIRSYNC)
++		newflags |= EXT3_DIRSYNC_FL;
++
++	if (oldflags ^ newflags) {
++		handle_t *handle;
++		struct ext3_iloc iloc;
++
++		handle = ext3_journal_start(inode, 1);
++		if (IS_ERR(handle))
++			return PTR_ERR(handle);
++		if (IS_SYNC(inode))
++			handle->h_sync = 1;
++		err = ext3_reserve_inode_write(handle, inode, &iloc);
++		if (err)
++			goto flags_err;
++
++		EXT3_I(inode)->i_flags = newflags;
++		inode->i_ctime = CURRENT_TIME;
++
++		err = ext3_mark_iloc_dirty(handle, inode, &iloc);
++	flags_err:
++		ext3_journal_stop(handle);
++	}
++	return err;
++}
++
+ void ext3_read_inode(struct inode * inode)
+ {
+ 	struct ext3_iloc iloc;
+@@ -2441,6 +2507,8 @@ void ext3_read_inode(struct inode * inod
+ 	struct ext3_inode_info *ei = EXT3_I(inode);
+ 	struct buffer_head *bh;
+ 	int block;
++	uid_t uid;
++	gid_t gid;
+ 
+ #ifdef CONFIG_EXT3_FS_POSIX_ACL
+ 	ei->i_acl = EXT3_ACL_NOT_CACHED;
+@@ -2453,12 +2521,17 @@ void ext3_read_inode(struct inode * inod
+ 	bh = iloc.bh;
+ 	raw_inode = ext3_raw_inode(&iloc);
+ 	inode->i_mode = le16_to_cpu(raw_inode->i_mode);
+-	inode->i_uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
+-	inode->i_gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
++	uid = (uid_t)le16_to_cpu(raw_inode->i_uid_low);
++	gid = (gid_t)le16_to_cpu(raw_inode->i_gid_low);
+ 	if(!(test_opt (inode->i_sb, NO_UID32))) {
+-		inode->i_uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
+-		inode->i_gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
++		uid |= le16_to_cpu(raw_inode->i_uid_high) << 16;
++		gid |= le16_to_cpu(raw_inode->i_gid_high) << 16;
+ 	}
++	inode->i_uid = INOXID_UID(XID_TAG(inode), uid, gid);
++	inode->i_gid = INOXID_GID(XID_TAG(inode), uid, gid);
++	inode->i_xid = INOXID_XID(XID_TAG(inode), uid, gid,
++		le16_to_cpu(raw_inode->i_raw_xid));
++
+ 	inode->i_nlink = le16_to_cpu(raw_inode->i_links_count);
+ 	inode->i_size = le32_to_cpu(raw_inode->i_size);
+ 	inode->i_atime.tv_sec = le32_to_cpu(raw_inode->i_atime);
+@@ -2585,6 +2658,8 @@ static int ext3_do_update_inode(handle_t
+ 	struct ext3_inode *raw_inode = ext3_raw_inode(iloc);
+ 	struct ext3_inode_info *ei = EXT3_I(inode);
+ 	struct buffer_head *bh = iloc->bh;
++	uid_t uid = XIDINO_UID(XID_TAG(inode), inode->i_uid, inode->i_xid);
++	gid_t gid = XIDINO_GID(XID_TAG(inode), inode->i_gid, inode->i_xid);
+ 	int err = 0, rc, block;
+ 
+ 	/* For fields not not tracking in the in-memory inode,
+@@ -2594,29 +2669,32 @@ static int ext3_do_update_inode(handle_t
+ 
+ 	raw_inode->i_mode = cpu_to_le16(inode->i_mode);
+ 	if(!(test_opt(inode->i_sb, NO_UID32))) {
+-		raw_inode->i_uid_low = cpu_to_le16(low_16_bits(inode->i_uid));
+-		raw_inode->i_gid_low = cpu_to_le16(low_16_bits(inode->i_gid));
++		raw_inode->i_uid_low = cpu_to_le16(low_16_bits(uid));
++		raw_inode->i_gid_low = cpu_to_le16(low_16_bits(gid));
+ /*
+  * Fix up interoperability with old kernels. Otherwise, old inodes get
+  * re-used with the upper 16 bits of the uid/gid intact
+  */
+ 		if(!ei->i_dtime) {
+ 			raw_inode->i_uid_high =
+-				cpu_to_le16(high_16_bits(inode->i_uid));
++				cpu_to_le16(high_16_bits(uid));
+ 			raw_inode->i_gid_high =
+-				cpu_to_le16(high_16_bits(inode->i_gid));
++				cpu_to_le16(high_16_bits(gid));
+ 		} else {
+ 			raw_inode->i_uid_high = 0;
+ 			raw_inode->i_gid_high = 0;
+ 		}
+ 	} else {
+ 		raw_inode->i_uid_low =
+-			cpu_to_le16(fs_high2lowuid(inode->i_uid));
++			cpu_to_le16(fs_high2lowuid(uid));
+ 		raw_inode->i_gid_low =
+-			cpu_to_le16(fs_high2lowgid(inode->i_gid));
++			cpu_to_le16(fs_high2lowgid(gid));
+ 		raw_inode->i_uid_high = 0;
+ 		raw_inode->i_gid_high = 0;
+ 	}
++#ifdef CONFIG_INOXID_INTERN
++	raw_inode->i_raw_xid = cpu_to_le16(inode->i_xid);
++#endif
+ 	raw_inode->i_links_count = cpu_to_le16(inode->i_nlink);
+ 	raw_inode->i_size = cpu_to_le32(ei->i_disksize);
+ 	raw_inode->i_atime = cpu_to_le32(inode->i_atime.tv_sec);
+@@ -2769,7 +2847,8 @@ int ext3_setattr(struct dentry *dentry, 
+ 		return error;
+ 
+ 	if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
+-		(ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) {
++		(ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid) ||
++		(ia_valid & ATTR_XID && attr->ia_xid != inode->i_xid)) {
+ 		handle_t *handle;
+ 
+ 		/* (user+group)*(old+new) structure, inode write (sb,
+@@ -2791,6 +2870,8 @@ int ext3_setattr(struct dentry *dentry, 
+ 			inode->i_uid = attr->ia_uid;
+ 		if (attr->ia_valid & ATTR_GID)
+ 			inode->i_gid = attr->ia_gid;
++		if ((attr->ia_valid & ATTR_XID) && IS_TAGXID(inode))
++			inode->i_xid = attr->ia_xid;
+ 		error = ext3_mark_inode_dirty(handle, inode);
+ 		ext3_journal_stop(handle);
+ 	}
+Index: vserver-sources-2.0.1_2.6.15/fs/ext3/ioctl.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/ext3/ioctl.c
++++ vserver-sources-2.0.1_2.6.15/fs/ext3/ioctl.c
+@@ -12,6 +12,7 @@
+ #include <linux/ext3_fs.h>
+ #include <linux/ext3_jbd.h>
+ #include <linux/time.h>
++#include <linux/vserver/xid.h>
+ #include <asm/uaccess.h>
+ 
+ 
+@@ -58,7 +59,9 @@ int ext3_ioctl (struct inode * inode, st
+ 		 *
+ 		 * This test looks nicer. Thanks to Pauline Middelink
+ 		 */
+-		if ((flags ^ oldflags) & (EXT3_APPEND_FL | EXT3_IMMUTABLE_FL)) {
++		if ((oldflags & EXT3_IMMUTABLE_FL) ||
++			((flags ^ oldflags) & (EXT3_APPEND_FL |
++			EXT3_IMMUTABLE_FL | EXT3_IUNLINK_FL))) {
+ 			if (!capable(CAP_LINUX_IMMUTABLE))
+ 				return -EPERM;
+ 		}
+@@ -236,6 +239,38 @@ flags_err:
+ 		return err;
+ 	}
+ 
++#if defined(CONFIG_VSERVER_LEGACY) && !defined(CONFIG_INOXID_NONE)
++	case EXT3_IOC_SETXID: {
++		handle_t *handle;
++		struct ext3_iloc iloc;
++		int xid;
++		int err;
++
++		/* fixme: if stealth, return -ENOTTY */
++		if (!capable(CAP_CONTEXT))
++			return -EPERM;
++		if (IS_RDONLY(inode))
++			return -EROFS;
++		if (!(inode->i_sb->s_flags & MS_TAGXID))
++			return -ENOSYS;
++		if (get_user(xid, (int *) arg))
++			return -EFAULT;
++
++		handle = ext3_journal_start(inode, 1);
++		if (IS_ERR(handle))
++			return PTR_ERR(handle);
++		err = ext3_reserve_inode_write(handle, inode, &iloc);
++		if (err)
++			return err;
++
++		inode->i_xid = (xid & 0xFFFF);
++		inode->i_ctime = CURRENT_TIME;
++
++		err = ext3_mark_iloc_dirty(handle, inode, &iloc);
++		ext3_journal_stop(handle);
++		return err;
++	}
++#endif
+ 
+ 	default:
+ 		return -ENOTTY;
+Index: vserver-sources-2.0.1_2.6.15/fs/ext3/namei.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/ext3/namei.c
++++ vserver-sources-2.0.1_2.6.15/fs/ext3/namei.c
+@@ -36,6 +36,7 @@
+ #include <linux/quotaops.h>
+ #include <linux/buffer_head.h>
+ #include <linux/smp_lock.h>
++#include <linux/vserver/xid.h>
+ 
+ #include "namei.h"
+ #include "xattr.h"
+@@ -1004,6 +1005,7 @@ static struct dentry *ext3_lookup(struct
+ 
+ 		if (!inode)
+ 			return ERR_PTR(-EACCES);
++		vx_propagate_xid(nd, inode);
+ 	}
+ 	if (inode)
+ 		return d_splice_alias(inode, dentry);
+@@ -2375,6 +2377,7 @@ struct inode_operations ext3_dir_inode_o
+ 	.removexattr	= generic_removexattr,
+ #endif
+ 	.permission	= ext3_permission,
++	.sync_flags	= ext3_sync_flags,
+ };
+ 
+ struct inode_operations ext3_special_inode_operations = {
+@@ -2386,4 +2389,5 @@ struct inode_operations ext3_special_ino
+ 	.removexattr	= generic_removexattr,
+ #endif
+ 	.permission	= ext3_permission,
++	.sync_flags	= ext3_sync_flags,
+ }; 
+Index: vserver-sources-2.0.1_2.6.15/fs/ext3/super.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/ext3/super.c
++++ vserver-sources-2.0.1_2.6.15/fs/ext3/super.c
+@@ -633,7 +633,7 @@ enum {
+ 	Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota,
+ 	Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_quota, Opt_noquota,
+ 	Opt_ignore, Opt_barrier, Opt_err, Opt_resize, Opt_usrquota,
+-	Opt_grpquota
++	Opt_grpquota, Opt_tagxid
+ };
+ 
+ static match_table_t tokens = {
+@@ -681,6 +681,7 @@ static match_table_t tokens = {
+ 	{Opt_quota, "quota"},
+ 	{Opt_usrquota, "usrquota"},
+ 	{Opt_barrier, "barrier=%u"},
++	{Opt_tagxid, "tagxid"},
+ 	{Opt_err, NULL},
+ 	{Opt_resize, "resize"},
+ };
+@@ -772,6 +773,11 @@ static int parse_options (char * options
+ 		case Opt_nouid32:
+ 			set_opt (sbi->s_mount_opt, NO_UID32);
+ 			break;
++#ifndef CONFIG_INOXID_NONE
++		case Opt_tagxid:
++			set_opt (sbi->s_mount_opt, TAGXID);
++			break;
++#endif
+ 		case Opt_nocheck:
+ 			clear_opt (sbi->s_mount_opt, CHECK);
+ 			break;
+@@ -1414,6 +1420,9 @@ static int ext3_fill_super (struct super
+ 	if (!parse_options ((char *) data, sb, &journal_inum, NULL, 0))
+ 		goto failed_mount;
+ 
++	if (EXT3_SB(sb)->s_mount_opt & EXT3_MOUNT_TAGXID)
++		sb->s_flags |= MS_TAGXID;
++
+ 	sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
+ 		((sbi->s_mount_opt & EXT3_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
+ 
+@@ -2204,6 +2213,12 @@ static int ext3_remount (struct super_bl
+ 
+ 	if (sbi->s_mount_opt & EXT3_MOUNT_ABORT)
+ 		ext3_abort(sb, __FUNCTION__, "Abort forced by user");
++	if ((sbi->s_mount_opt & EXT3_MOUNT_TAGXID) &&
++		!(sb->s_flags & MS_TAGXID)) {
++		printk("EXT3-fs: %s: tagxid not permitted on remount.\n",
++			sb->s_id);
++		return -EINVAL;
++	}
+ 
+ 	sb->s_flags = (sb->s_flags & ~MS_POSIXACL) |
+ 		((sbi->s_mount_opt & EXT3_MOUNT_POSIX_ACL) ? MS_POSIXACL : 0);
+Index: vserver-sources-2.0.1_2.6.15/fs/ext3/symlink.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/ext3/symlink.c
++++ vserver-sources-2.0.1_2.6.15/fs/ext3/symlink.c
+@@ -40,6 +40,7 @@ struct inode_operations ext3_symlink_ino
+ 	.listxattr	= ext3_listxattr,
+ 	.removexattr	= generic_removexattr,
+ #endif
++	.sync_flags	= ext3_sync_flags,
+ };
+ 
+ struct inode_operations ext3_fast_symlink_inode_operations = {
+@@ -51,4 +52,5 @@ struct inode_operations ext3_fast_symlin
+ 	.listxattr	= ext3_listxattr,
+ 	.removexattr	= generic_removexattr,
+ #endif
++	.sync_flags	= ext3_sync_flags,
+ };
+Index: vserver-sources-2.0.1_2.6.15/fs/ext3/xattr.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/ext3/xattr.c
++++ vserver-sources-2.0.1_2.6.15/fs/ext3/xattr.c
+@@ -58,6 +58,7 @@
+ #include <linux/mbcache.h>
+ #include <linux/quotaops.h>
+ #include <linux/rwsem.h>
++#include <linux/vs_dlimit.h>
+ #include "xattr.h"
+ #include "acl.h"
+ 
+@@ -495,6 +496,7 @@ ext3_xattr_release_block(handle_t *handl
+ 			ext3_journal_dirty_metadata(handle, bh);
+ 			if (IS_SYNC(inode))
+ 				handle->h_sync = 1;
++			DLIMIT_FREE_BLOCK(inode, 1);
+ 			DQUOT_FREE_BLOCK(inode, 1);
+ 			unlock_buffer(bh);
+ 			ea_bdebug(bh, "refcount now=%d; releasing",
+@@ -763,11 +765,14 @@ inserted:
+ 			if (new_bh == bs->bh)
+ 				ea_bdebug(new_bh, "keeping");
+ 			else {
++				error = -ENOSPC;
++				if (DLIMIT_ALLOC_BLOCK(inode, 1))
++					goto cleanup;
+ 				/* The old block is released after updating
+ 				   the inode. */
+ 				error = -EDQUOT;
+ 				if (DQUOT_ALLOC_BLOCK(inode, 1))
+-					goto cleanup;
++					goto cleanup_dlimit;
+ 				error = ext3_journal_get_write_access(handle,
+ 								      new_bh);
+ 				if (error)
+@@ -843,6 +848,8 @@ cleanup:
+ 
+ cleanup_dquot:
+ 	DQUOT_FREE_BLOCK(inode, 1);
++cleanup_dlimit:
++	DLIMIT_FREE_BLOCK(inode, 1);
+ 	goto cleanup;
+ 
+ bad_block:
+Index: vserver-sources-2.0.1_2.6.15/fs/fcntl.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/fcntl.c
++++ vserver-sources-2.0.1_2.6.15/fs/fcntl.c
+@@ -17,6 +17,7 @@
+ #include <linux/ptrace.h>
+ #include <linux/signal.h>
+ #include <linux/rcupdate.h>
++#include <linux/vs_limit.h>
+ 
+ #include <asm/poll.h>
+ #include <asm/siginfo.h>
+@@ -84,6 +85,8 @@ repeat:
+ 	error = -EMFILE;
+ 	if (newfd >= current->signal->rlim[RLIMIT_NOFILE].rlim_cur)
+ 		goto out;
++	if (!vx_files_avail(1))
++		goto out;
+ 
+ 	error = expand_files(files, newfd);
+ 	if (error < 0)
+@@ -125,6 +128,7 @@ static int dupfd(struct file *file, unsi
+ 		FD_SET(fd, fdt->open_fds);
+ 		FD_CLR(fd, fdt->close_on_exec);
+ 		spin_unlock(&files->file_lock);
++		vx_openfd_inc(fd);
+ 		fd_install(fd, file);
+ 	} else {
+ 		spin_unlock(&files->file_lock);
+@@ -177,6 +181,9 @@ asmlinkage long sys_dup2(unsigned int ol
+ 
+ 	if (tofree)
+ 		filp_close(tofree, files);
++	else
++		vx_openfd_inc(newfd);	/* fd was unused */
++
+ 	err = newfd;
+ out:
+ 	return err;
+@@ -477,7 +484,7 @@ void send_sigio(struct fown_struct *fown
+ 	
+ 	read_lock(&tasklist_lock);
+ 	if (pid > 0) {
+-		p = find_task_by_pid(pid);
++		p = find_task_by_real_pid(pid);
+ 		if (p) {
+ 			send_sigio_to_task(p, fown, fd, band);
+ 		}
+@@ -512,7 +519,7 @@ int send_sigurg(struct fown_struct *fown
+ 	
+ 	read_lock(&tasklist_lock);
+ 	if (pid > 0) {
+-		p = find_task_by_pid(pid);
++		p = find_task_by_real_pid(pid);
+ 		if (p) {
+ 			send_sigurg_to_task(p, fown);
+ 		}
+Index: vserver-sources-2.0.1_2.6.15/fs/file_table.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/file_table.c
++++ vserver-sources-2.0.1_2.6.15/fs/file_table.c
+@@ -18,6 +18,8 @@
+ #include <linux/mount.h>
+ #include <linux/cdev.h>
+ #include <linux/fsnotify.h>
++#include <linux/vs_limit.h>
++#include <linux/vs_context.h>
+ 
+ /* sysctl tunables... */
+ struct files_stat_struct files_stat = {
+@@ -96,6 +98,8 @@ struct file *get_empty_filp(void)
+ 	rwlock_init(&f->f_owner.lock);
+ 	/* f->f_version: 0 */
+ 	INIT_LIST_HEAD(&f->f_u.fu_list);
++	f->f_xid = vx_current_xid();
++	vx_files_inc(f);
+ 	return f;
+ 
+ over:
+@@ -150,6 +154,8 @@ void fastcall __fput(struct file *file)
+ 	fops_put(file->f_op);
+ 	if (file->f_mode & FMODE_WRITE)
+ 		put_write_access(inode);
++	vx_files_dec(file);
++	file->f_xid = 0;
+ 	file_kill(file);
+ 	file->f_dentry = NULL;
+ 	file->f_vfsmnt = NULL;
+@@ -215,6 +221,8 @@ void put_filp(struct file *file)
+ {
+ 	if (rcuref_dec_and_test(&file->f_count)) {
+ 		security_file_free(file);
++		vx_files_dec(file);
++		file->f_xid = 0;
+ 		file_kill(file);
+ 		file_free(file);
+ 	}
+Index: vserver-sources-2.0.1_2.6.15/fs/inode.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/inode.c
++++ vserver-sources-2.0.1_2.6.15/fs/inode.c
+@@ -115,6 +115,9 @@ static struct inode *alloc_inode(struct 
+ 		struct address_space * const mapping = &inode->i_data;
+ 
+ 		inode->i_sb = sb;
++
++		/* essential because of inode slab reuse */
++		inode->i_xid = 0;
+ 		inode->i_blkbits = sb->s_blocksize_bits;
+ 		inode->i_flags = 0;
+ 		atomic_set(&inode->i_count, 1);
+@@ -235,6 +238,8 @@ void __iget(struct inode * inode)
+ 	inodes_stat.nr_unused--;
+ }
+ 
++EXPORT_SYMBOL_GPL(__iget);
++
+ /**
+  * clear_inode - clear an inode
+  * @inode: inode to clear
+Index: vserver-sources-2.0.1_2.6.15/fs/ioctl.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/ioctl.c
++++ vserver-sources-2.0.1_2.6.15/fs/ioctl.c
+@@ -12,10 +12,19 @@
+ #include <linux/fs.h>
+ #include <linux/security.h>
+ #include <linux/module.h>
++#include <linux/proc_fs.h>
++#include <linux/vserver/inode.h>
++#include <linux/vserver/xid.h>
+ 
+ #include <asm/uaccess.h>
+ #include <asm/ioctls.h>
+ 
++
++#ifdef	CONFIG_VSERVER_LEGACY
++extern int vx_proc_ioctl(struct inode *, struct file *,
++	unsigned int, unsigned long);
++#endif
++
+ static long do_ioctl(struct file *filp, unsigned int cmd,
+ 		unsigned long arg)
+ {
+@@ -146,6 +155,48 @@ int vfs_ioctl(struct file *filp, unsigne
+ 			else
+ 				error = -ENOTTY;
+ 			break;
++#ifdef	CONFIG_VSERVER_LEGACY
++#ifndef CONFIG_INOXID_NONE
++		case FIOC_GETXID: {
++			struct inode *inode = filp->f_dentry->d_inode;
++
++			/* fixme: if stealth, return -ENOTTY */
++			error = -EPERM;
++			if (capable(CAP_CONTEXT))
++				error = put_user(inode->i_xid, (int *) arg);
++			break;
++		}
++		case FIOC_SETXID: {
++			struct inode *inode = filp->f_dentry->d_inode;
++			int xid;
++
++			/* fixme: if stealth, return -ENOTTY */
++			error = -EPERM;
++			if (!capable(CAP_CONTEXT))
++				break;
++			error = -EROFS;
++			if (IS_RDONLY(inode))
++				break;
++			error = -ENOSYS;
++			if (!(inode->i_sb->s_flags & MS_TAGXID))
++				break;
++			error = -EFAULT;
++			if (get_user(xid, (int *) arg))
++				break;
++			error = 0;
++			inode->i_xid = (xid & 0xFFFF);
++			inode->i_ctime = CURRENT_TIME;
++			mark_inode_dirty(inode);
++			break;
++		}
++#endif
++		case FIOC_GETXFLG:
++		case FIOC_SETXFLG:
++			error = -ENOTTY;
++			if (filp->f_dentry->d_inode->i_sb->s_magic == PROC_SUPER_MAGIC)
++				error = vx_proc_ioctl(filp->f_dentry->d_inode, filp, cmd, arg);
++			break;
++#endif
+ 		default:
+ 			if (S_ISREG(filp->f_dentry->d_inode->i_mode))
+ 				error = file_ioctl(filp, cmd, arg);
+Index: vserver-sources-2.0.1_2.6.15/fs/ioprio.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/ioprio.c
++++ vserver-sources-2.0.1_2.6.15/fs/ioprio.c
+@@ -23,6 +23,7 @@
+ #include <linux/ioprio.h>
+ #include <linux/blkdev.h>
+ #include <linux/syscalls.h>
++#include <linux/vs_cvirt.h>
+ 
+ static int set_task_ioprio(struct task_struct *task, int ioprio)
+ {
+@@ -94,7 +95,7 @@ asmlinkage long sys_ioprio_set(int which
+ 			if (!who)
+ 				user = current->user;
+ 			else
+-				user = find_user(who);
++				user = find_user(who, vx_current_xid());
+ 
+ 			if (!user)
+ 				break;
+@@ -148,7 +149,7 @@ asmlinkage long sys_ioprio_get(int which
+ 			if (!who)
+ 				user = current->user;
+ 			else
+-				user = find_user(who);
++				user = find_user(who, vx_current_xid());
+ 
+ 			if (!user)
+ 				break;
+Index: vserver-sources-2.0.1_2.6.15/fs/jfs/acl.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/jfs/acl.c
++++ vserver-sources-2.0.1_2.6.15/fs/jfs/acl.c
+@@ -229,7 +229,8 @@ int jfs_setattr(struct dentry *dentry, s
+ 		return rc;
+ 
+ 	if ((iattr->ia_valid & ATTR_UID && iattr->ia_uid != inode->i_uid) ||
+-	    (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid)) {
++	    (iattr->ia_valid & ATTR_GID && iattr->ia_gid != inode->i_gid) ||
++	    (iattr->ia_valid & ATTR_XID && iattr->ia_xid != inode->i_xid)) {
+ 		if (DQUOT_TRANSFER(inode, iattr))
+ 			return -EDQUOT;
+ 	}
+Index: vserver-sources-2.0.1_2.6.15/fs/jfs/inode.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/jfs/inode.c
++++ vserver-sources-2.0.1_2.6.15/fs/jfs/inode.c
+@@ -22,6 +22,7 @@
+ #include <linux/buffer_head.h>
+ #include <linux/pagemap.h>
+ #include <linux/quotaops.h>
++#include <linux/vs_dlimit.h>
+ #include "jfs_incore.h"
+ #include "jfs_inode.h"
+ #include "jfs_filsys.h"
+@@ -143,6 +144,7 @@ void jfs_delete_inode(struct inode *inod
+ 		DQUOT_INIT(inode);
+ 		DQUOT_FREE_INODE(inode);
+ 		DQUOT_DROP(inode);
++		DLIMIT_FREE_INODE(inode);
+ 	}
+ 
+ 	clear_inode(inode);
+Index: vserver-sources-2.0.1_2.6.15/fs/jfs/jfs_dtree.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/jfs/jfs_dtree.c
++++ vserver-sources-2.0.1_2.6.15/fs/jfs/jfs_dtree.c
+@@ -102,6 +102,7 @@
+ 
+ #include <linux/fs.h>
+ #include <linux/quotaops.h>
++#include <linux/vs_dlimit.h>
+ #include "jfs_incore.h"
+ #include "jfs_superblock.h"
+ #include "jfs_filsys.h"
+@@ -383,10 +384,10 @@ static u32 add_index(tid_t tid, struct i
+ 		 */
+ 		if (DQUOT_ALLOC_BLOCK(ip, sbi->nbperpage))
+ 			goto clean_up;
+-		if (dbAlloc(ip, 0, sbi->nbperpage, &xaddr)) {
+-			DQUOT_FREE_BLOCK(ip, sbi->nbperpage);
+-			goto clean_up;
+-		}
++		if (DLIMIT_ALLOC_BLOCK(ip, sbi->nbperpage))
++			goto clean_up_quota;
++		if (dbAlloc(ip, 0, sbi->nbperpage, &xaddr))
++			goto clean_up_dlim;
+ 
+ 		/*
+ 		 * Save the table, we're going to overwrite it with the
+@@ -479,6 +480,10 @@ static u32 add_index(tid_t tid, struct i
+ 
+ 	return index;
+ 
++      clean_up_dlim:
++	DLIMIT_FREE_BLOCK(ip, sbi->nbperpage);
++      clean_up_quota:
++	DQUOT_FREE_BLOCK(ip, sbi->nbperpage);
+       clean_up:
+ 
+ 	jfs_ip->next_index--;
+@@ -930,7 +935,8 @@ int dtInsert(tid_t tid, struct inode *ip
+ static int dtSplitUp(tid_t tid,
+ 	  struct inode *ip, struct dtsplit * split, struct btstack * btstack)
+ {
+-	struct jfs_sb_info *sbi = JFS_SBI(ip->i_sb);
++	struct super_block *sb = ip->i_sb;
++	struct jfs_sb_info *sbi = JFS_SBI(sb);
+ 	int rc = 0;
+ 	struct metapage *smp;
+ 	dtpage_t *sp;		/* split page */
+@@ -952,6 +958,7 @@ static int dtSplitUp(tid_t tid,
+ 	struct tlock *tlck;
+ 	struct lv *lv;
+ 	int quota_allocation = 0;
++	int dlimit_allocation = 0;
+ 
+ 	/* get split page */
+ 	smp = split->mp;
+@@ -1033,6 +1040,12 @@ static int dtSplitUp(tid_t tid,
+ 		}
+ 		quota_allocation += n;
+ 
++		if (DLIMIT_ALLOC_BLOCK(ip, n)) {
++			rc = -ENOSPC;
++			goto extendOut;
++		}
++		dlimit_allocation += n;
++
+ 		if ((rc = dbReAlloc(sbi->ipbmap, xaddr, (s64) xlen,
+ 				    (s64) n, &nxaddr)))
+ 			goto extendOut;
+@@ -1301,6 +1314,9 @@ static int dtSplitUp(tid_t tid,
+       freeKeyName:
+ 	kfree(key.name);
+ 
++	/* Rollback dlimit allocation */
++	if (rc && dlimit_allocation)
++		DLIMIT_FREE_BLOCK(ip, dlimit_allocation);
+ 	/* Rollback quota allocation */
+ 	if (rc && quota_allocation)
+ 		DQUOT_FREE_BLOCK(ip, quota_allocation);
+@@ -1368,6 +1384,12 @@ static int dtSplitPage(tid_t tid, struct
+ 		release_metapage(rmp);
+ 		return -EDQUOT;
+ 	}
++	/* Allocate blocks to dlimit. */
++	if (DLIMIT_ALLOC_BLOCK(ip, lengthPXD(pxd))) {
++		DQUOT_FREE_BLOCK(ip, lengthPXD(pxd));
++		release_metapage(rmp);
++		return -ENOSPC;
++	}
+ 
+ 	jfs_info("dtSplitPage: ip:0x%p smp:0x%p rmp:0x%p", ip, smp, rmp);
+ 
+@@ -1918,6 +1940,12 @@ static int dtSplitRoot(tid_t tid,
+ 		release_metapage(rmp);
+ 		return -EDQUOT;
+ 	}
++	/* Allocate blocks to dlimit. */
++	if (DLIMIT_ALLOC_BLOCK(ip, lengthPXD(pxd))) {
++		DQUOT_FREE_BLOCK(ip, lengthPXD(pxd));
++		release_metapage(rmp);
++		return -ENOSPC;
++	}
+ 
+ 	BT_MARK_DIRTY(rmp, ip);
+ 	/*
+@@ -2284,6 +2312,8 @@ static int dtDeleteUp(tid_t tid, struct 
+ 
+ 	xlen = lengthPXD(&fp->header.self);
+ 
++	/* Free dlimit allocation. */
++	DLIMIT_FREE_BLOCK(ip, xlen);
+ 	/* Free quota allocation. */
+ 	DQUOT_FREE_BLOCK(ip, xlen);
+ 
+@@ -2360,6 +2390,8 @@ static int dtDeleteUp(tid_t tid, struct 
+ 
+ 				xlen = lengthPXD(&p->header.self);
+ 
++				/* Free dlimit allocation */
++				DLIMIT_FREE_BLOCK(ip, xlen);
+ 				/* Free quota allocation */
+ 				DQUOT_FREE_BLOCK(ip, xlen);
+ 
+Index: vserver-sources-2.0.1_2.6.15/fs/jfs/jfs_extent.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/jfs/jfs_extent.c
++++ vserver-sources-2.0.1_2.6.15/fs/jfs/jfs_extent.c
+@@ -18,6 +18,7 @@
+ 
+ #include <linux/fs.h>
+ #include <linux/quotaops.h>
++#include <linux/vs_dlimit.h>
+ #include "jfs_incore.h"
+ #include "jfs_inode.h"
+ #include "jfs_superblock.h"
+@@ -146,6 +147,13 @@ extAlloc(struct inode *ip, s64 xlen, s64
+ 		up(&JFS_IP(ip)->commit_sem);
+ 		return -EDQUOT;
+ 	}
++	/* Allocate blocks to dlimit. */
++	if (DLIMIT_ALLOC_BLOCK(ip, nxlen)) {
++		DQUOT_FREE_BLOCK(ip, nxlen);
++		dbFree(ip, nxaddr, (s64) nxlen);
++		up(&JFS_IP(ip)->commit_sem);
++		return -ENOSPC;
++	}
+ 
+ 	/* determine the value of the extent flag */
+ 	xflag = (abnr == TRUE) ? XAD_NOTRECORDED : 0;
+@@ -164,6 +172,7 @@ extAlloc(struct inode *ip, s64 xlen, s64
+ 	 */
+ 	if (rc) {
+ 		dbFree(ip, nxaddr, nxlen);
++		DLIMIT_FREE_BLOCK(ip, nxlen);
+ 		DQUOT_FREE_BLOCK(ip, nxlen);
+ 		up(&JFS_IP(ip)->commit_sem);
+ 		return (rc);
+@@ -261,6 +270,13 @@ int extRealloc(struct inode *ip, s64 nxl
+ 		up(&JFS_IP(ip)->commit_sem);
+ 		return -EDQUOT;
+ 	}
++	/* Allocate blocks to dlimit. */
++	if (DLIMIT_ALLOC_BLOCK(ip, nxlen)) {
++		DQUOT_FREE_BLOCK(ip, nxlen);
++		dbFree(ip, nxaddr, (s64) nxlen);
++		up(&JFS_IP(ip)->commit_sem);
++		return -ENOSPC;
++	}
+ 
+ 	delta = nxlen - xlen;
+ 
+@@ -297,6 +313,7 @@ int extRealloc(struct inode *ip, s64 nxl
+ 		/* extend the extent */
+ 		if ((rc = xtExtend(0, ip, xoff + xlen, (int) nextend, 0))) {
+ 			dbFree(ip, xaddr + xlen, delta);
++			DLIMIT_FREE_BLOCK(ip, nxlen);
+ 			DQUOT_FREE_BLOCK(ip, nxlen);
+ 			goto exit;
+ 		}
+@@ -308,6 +325,7 @@ int extRealloc(struct inode *ip, s64 nxl
+ 		 */
+ 		if ((rc = xtTailgate(0, ip, xoff, (int) ntail, nxaddr, 0))) {
+ 			dbFree(ip, nxaddr, nxlen);
++			DLIMIT_FREE_BLOCK(ip, nxlen);
+ 			DQUOT_FREE_BLOCK(ip, nxlen);
+ 			goto exit;
+ 		}
+Index: vserver-sources-2.0.1_2.6.15/fs/jfs/jfs_filsys.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/jfs/jfs_filsys.h
++++ vserver-sources-2.0.1_2.6.15/fs/jfs/jfs_filsys.h
+@@ -84,6 +84,7 @@
+ #define JFS_DIR_INDEX		0x00200000	/* Persistant index for */
+ 						/* directory entries    */
+ 
++#define JFS_TAGXID		0x00800000	/* xid tagging */
+ 
+ /*
+  *	buffer cache configuration
+Index: vserver-sources-2.0.1_2.6.15/fs/jfs/jfs_imap.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/jfs/jfs_imap.c
++++ vserver-sources-2.0.1_2.6.15/fs/jfs/jfs_imap.c
+@@ -45,6 +45,7 @@
+ #include <linux/buffer_head.h>
+ #include <linux/pagemap.h>
+ #include <linux/quotaops.h>
++#include <linux/vserver/xid.h>
+ 
+ #include "jfs_incore.h"
+ #include "jfs_inode.h"
+@@ -3078,14 +3079,21 @@ static void duplicateIXtree(struct super
+ static int copy_from_dinode(struct dinode * dip, struct inode *ip)
+ {
+ 	struct jfs_inode_info *jfs_ip = JFS_IP(ip);
++	uid_t uid;
++	gid_t gid;
+ 
+ 	jfs_ip->fileset = le32_to_cpu(dip->di_fileset);
+ 	jfs_ip->mode2 = le32_to_cpu(dip->di_mode);
+ 
+ 	ip->i_mode = le32_to_cpu(dip->di_mode) & 0xffff;
+ 	ip->i_nlink = le32_to_cpu(dip->di_nlink);
+-	ip->i_uid = le32_to_cpu(dip->di_uid);
+-	ip->i_gid = le32_to_cpu(dip->di_gid);
++
++	uid = le32_to_cpu(dip->di_uid);
++	gid = le32_to_cpu(dip->di_gid);
++	ip->i_uid = INOXID_UID(XID_TAG(ip), uid, gid);
++	ip->i_gid = INOXID_GID(XID_TAG(ip), uid, gid);
++	ip->i_xid = INOXID_XID(XID_TAG(ip), uid, gid, 0);
++
+ 	ip->i_size = le64_to_cpu(dip->di_size);
+ 	ip->i_atime.tv_sec = le32_to_cpu(dip->di_atime.tv_sec);
+ 	ip->i_atime.tv_nsec = le32_to_cpu(dip->di_atime.tv_nsec);
+@@ -3136,6 +3144,8 @@ static int copy_from_dinode(struct dinod
+ static void copy_to_dinode(struct dinode * dip, struct inode *ip)
+ {
+ 	struct jfs_inode_info *jfs_ip = JFS_IP(ip);
++	uid_t uid;
++	gid_t gid;
+ 
+ 	dip->di_fileset = cpu_to_le32(jfs_ip->fileset);
+ 	dip->di_inostamp = cpu_to_le32(JFS_SBI(ip->i_sb)->inostamp);
+@@ -3144,8 +3154,11 @@ static void copy_to_dinode(struct dinode
+ 	dip->di_size = cpu_to_le64(ip->i_size);
+ 	dip->di_nblocks = cpu_to_le64(PBLK2LBLK(ip->i_sb, ip->i_blocks));
+ 	dip->di_nlink = cpu_to_le32(ip->i_nlink);
+-	dip->di_uid = cpu_to_le32(ip->i_uid);
+-	dip->di_gid = cpu_to_le32(ip->i_gid);
++
++	uid = XIDINO_UID(XID_TAG(ip), ip->i_uid, ip->i_xid);
++	gid = XIDINO_GID(XID_TAG(ip), ip->i_gid, ip->i_xid);
++	dip->di_uid = cpu_to_le32(uid);
++	dip->di_gid = cpu_to_le32(gid);
+ 	/*
+ 	 * mode2 is only needed for storing the higher order bits.
+ 	 * Trust i_mode for the lower order ones
+Index: vserver-sources-2.0.1_2.6.15/fs/jfs/jfs_inode.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/jfs/jfs_inode.c
++++ vserver-sources-2.0.1_2.6.15/fs/jfs/jfs_inode.c
+@@ -18,6 +18,8 @@
+ 
+ #include <linux/fs.h>
+ #include <linux/quotaops.h>
++#include <linux/vs_dlimit.h>
++#include <linux/vserver/xid.h>
+ #include "jfs_incore.h"
+ #include "jfs_inode.h"
+ #include "jfs_filsys.h"
+@@ -62,10 +64,17 @@ struct inode *ialloc(struct inode *paren
+ 	} else
+ 		inode->i_gid = current->fsgid;
+ 
++	inode->i_xid = vx_current_fsxid(sb);
++	if (DLIMIT_ALLOC_INODE(inode)) {
++		iput(inode);
++		return NULL;
++	}
++
+ 	/*
+ 	 * Allocate inode to quota.
+ 	 */
+ 	if (DQUOT_ALLOC_INODE(inode)) {
++		DLIMIT_FREE_INODE(inode);
+ 		DQUOT_DROP(inode);
+ 		inode->i_flags |= S_NOQUOTA;
+ 		inode->i_nlink = 0;
+Index: vserver-sources-2.0.1_2.6.15/fs/jfs/jfs_xtree.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/jfs/jfs_xtree.c
++++ vserver-sources-2.0.1_2.6.15/fs/jfs/jfs_xtree.c
+@@ -21,6 +21,7 @@
+ 
+ #include <linux/fs.h>
+ #include <linux/quotaops.h>
++#include <linux/vs_dlimit.h>
+ #include "jfs_incore.h"
+ #include "jfs_filsys.h"
+ #include "jfs_metapage.h"
+@@ -841,7 +842,12 @@ int xtInsert(tid_t tid,		/* transaction 
+ 			hint = 0;
+ 		if ((rc = DQUOT_ALLOC_BLOCK(ip, xlen)))
+ 			goto out;
++		if ((rc = DLIMIT_ALLOC_BLOCK(ip, xlen))) {
++			DQUOT_FREE_BLOCK(ip, xlen);
++			goto out;
++		}
+ 		if ((rc = dbAlloc(ip, hint, (s64) xlen, &xaddr))) {
++			DLIMIT_FREE_BLOCK(ip, xlen);
+ 			DQUOT_FREE_BLOCK(ip, xlen);
+ 			goto out;
+ 		}
+@@ -871,6 +877,7 @@ int xtInsert(tid_t tid,		/* transaction 
+ 			/* undo data extent allocation */
+ 			if (*xaddrp == 0) {
+ 				dbFree(ip, xaddr, (s64) xlen);
++				DLIMIT_FREE_BLOCK(ip, xlen);
+ 				DQUOT_FREE_BLOCK(ip, xlen);
+ 			}
+ 			return rc;
+@@ -1231,6 +1238,7 @@ xtSplitPage(tid_t tid, struct inode *ip,
+ 	struct tlock *tlck;
+ 	struct xtlock *sxtlck = NULL, *rxtlck = NULL;
+ 	int quota_allocation = 0;
++	int dlimit_allocation = 0;
+ 
+ 	smp = split->mp;
+ 	sp = XT_PAGE(ip, smp);
+@@ -1243,13 +1251,20 @@ xtSplitPage(tid_t tid, struct inode *ip,
+ 	rbn = addressPXD(pxd);
+ 
+ 	/* Allocate blocks to quota. */
+-       if (DQUOT_ALLOC_BLOCK(ip, lengthPXD(pxd))) {
++	if (DQUOT_ALLOC_BLOCK(ip, lengthPXD(pxd))) {
+ 	       rc = -EDQUOT;
+ 	       goto clean_up;
+ 	}
+ 
+ 	quota_allocation += lengthPXD(pxd);
+ 
++	/* Allocate blocks to dlimit. */
++	if (DLIMIT_ALLOC_BLOCK(ip, lengthPXD(pxd))) {
++	       rc = -ENOSPC;
++	       goto clean_up;
++	}
++	dlimit_allocation += lengthPXD(pxd);
++
+ 	/*
+ 	 * allocate the new right page for the split
+ 	 */
+@@ -1451,6 +1466,9 @@ xtSplitPage(tid_t tid, struct inode *ip,
+ 
+       clean_up:
+ 
++	/* Rollback dlimit allocation. */
++	if (dlimit_allocation)
++		DLIMIT_FREE_BLOCK(ip, dlimit_allocation);
+ 	/* Rollback quota allocation. */
+ 	if (quota_allocation)
+ 		DQUOT_FREE_BLOCK(ip, quota_allocation);
+@@ -1515,6 +1533,12 @@ xtSplitRoot(tid_t tid,
+ 		release_metapage(rmp);
+ 		return -EDQUOT;
+ 	}
++	/* Allocate blocks to dlimit. */
++	if (DLIMIT_ALLOC_BLOCK(ip, lengthPXD(pxd))) {
++		DQUOT_FREE_BLOCK(ip, lengthPXD(pxd));
++		release_metapage(rmp);
++		return -ENOSPC;
++	}
+ 
+ 	jfs_info("xtSplitRoot: ip:0x%p rmp:0x%p", ip, rmp);
+ 
+@@ -3941,6 +3965,8 @@ s64 xtTruncate(tid_t tid, struct inode *
+ 	else
+ 		ip->i_size = newsize;
+ 
++	/* update dlimit allocation to reflect freed blocks */
++	DLIMIT_FREE_BLOCK(ip, nfreed);
+ 	/* update quota allocation to reflect freed blocks */
+ 	DQUOT_FREE_BLOCK(ip, nfreed);
+ 
+Index: vserver-sources-2.0.1_2.6.15/fs/jfs/namei.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/jfs/namei.c
++++ vserver-sources-2.0.1_2.6.15/fs/jfs/namei.c
+@@ -20,6 +20,7 @@
+ #include <linux/fs.h>
+ #include <linux/ctype.h>
+ #include <linux/quotaops.h>
++#include <linux/vserver/xid.h>
+ #include "jfs_incore.h"
+ #include "jfs_superblock.h"
+ #include "jfs_inode.h"
+@@ -1465,6 +1466,7 @@ static struct dentry *jfs_lookup(struct 
+ 		return ERR_PTR(-EACCES);
+ 	}
+ 
++	vx_propagate_xid(nd, ip);
+ 	dentry = d_splice_alias(ip, dentry);
+ 
+ 	if (dentry && (JFS_SBI(dip->i_sb)->mntflag & JFS_OS2))
+Index: vserver-sources-2.0.1_2.6.15/fs/jfs/super.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/jfs/super.c
++++ vserver-sources-2.0.1_2.6.15/fs/jfs/super.c
+@@ -195,7 +195,7 @@ static void jfs_put_super(struct super_b
+ enum {
+ 	Opt_integrity, Opt_nointegrity, Opt_iocharset, Opt_resize,
+ 	Opt_resize_nosize, Opt_errors, Opt_ignore, Opt_err, Opt_quota,
+-	Opt_usrquota, Opt_grpquota
++	Opt_usrquota, Opt_grpquota, Opt_tagxid
+ };
+ 
+ static match_table_t tokens = {
+@@ -205,6 +205,7 @@ static match_table_t tokens = {
+ 	{Opt_resize, "resize=%u"},
+ 	{Opt_resize_nosize, "resize"},
+ 	{Opt_errors, "errors=%s"},
++	{Opt_tagxid, "tagxid"},
+ 	{Opt_ignore, "noquota"},
+ 	{Opt_ignore, "quota"},
+ 	{Opt_usrquota, "usrquota"},
+@@ -313,7 +314,11 @@ static int parse_options(char *options, 
+ 			       "JFS: quota operations not supported\n");
+ 			break;
+ #endif
+-
++#ifndef CONFIG_INOXID_NONE
++		case Opt_tagxid:
++			*flag |= JFS_TAGXID;
++			break;
++#endif
+ 		default:
+ 			printk("jfs: Unrecognized mount option \"%s\" "
+ 					" or missing value\n", p);
+@@ -344,6 +349,13 @@ static int jfs_remount(struct super_bloc
+ 	if (!parse_options(data, sb, &newLVSize, &flag)) {
+ 		return -EINVAL;
+ 	}
++
++	if ((flag & JFS_TAGXID) && !(sb->s_flags & MS_TAGXID)) {
++		printk(KERN_ERR "JFS: %s: tagxid not permitted on remount.\n",
++			sb->s_id);
++		return -EINVAL;
++	}
++
+ 	if (newLVSize) {
+ 		if (sb->s_flags & MS_RDONLY) {
+ 			printk(KERN_ERR
+@@ -415,6 +427,9 @@ static int jfs_fill_super(struct super_b
+ #ifdef CONFIG_JFS_POSIX_ACL
+ 	sb->s_flags |= MS_POSIXACL;
+ #endif
++	/* map mount option tagxid */
++	if (sbi->flag & JFS_TAGXID)
++		sb->s_flags |= MS_TAGXID;
+ 
+ 	if (newLVSize) {
+ 		printk(KERN_ERR "resize option for remount only\n");
+Index: vserver-sources-2.0.1_2.6.15/fs/jfs/xattr.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/jfs/xattr.c
++++ vserver-sources-2.0.1_2.6.15/fs/jfs/xattr.c
+@@ -22,6 +22,7 @@
+ #include <linux/posix_acl_xattr.h>
+ #include <linux/quotaops.h>
+ #include <linux/security.h>
++#include <linux/vs_dlimit.h>
+ #include "jfs_incore.h"
+ #include "jfs_superblock.h"
+ #include "jfs_dmap.h"
+@@ -277,9 +278,16 @@ static int ea_write(struct inode *ip, st
+ 	if (DQUOT_ALLOC_BLOCK(ip, nblocks)) {
+ 		return -EDQUOT;
+ 	}
++	/* Allocate new blocks to dlimit. */
++	if (DLIMIT_ALLOC_BLOCK(ip, nblocks)) {
++		DQUOT_FREE_BLOCK(ip, nblocks);
++		return -ENOSPC;
++	}
+ 
+ 	rc = dbAlloc(ip, INOHINT(ip), nblocks, &blkno);
+ 	if (rc) {
++		/*Rollback dlimit allocation. */
++		DLIMIT_FREE_BLOCK(ip, nblocks);
+ 		/*Rollback quota allocation. */
+ 		DQUOT_FREE_BLOCK(ip, nblocks);
+ 		return rc;
+@@ -346,6 +354,8 @@ static int ea_write(struct inode *ip, st
+ 
+       failed:
+ 	/* Rollback quota allocation. */
++	DLIMIT_FREE_BLOCK(ip, nblocks);
++	/* Rollback quota allocation. */
+ 	DQUOT_FREE_BLOCK(ip, nblocks);
+ 
+ 	dbFree(ip, blkno, nblocks);
+@@ -482,6 +492,7 @@ static int ea_get(struct inode *inode, s
+ 	s64 blkno;
+ 	int rc;
+ 	int quota_allocation = 0;
++	int dlimit_allocation = 0;
+ 
+ 	/* When fsck.jfs clears a bad ea, it doesn't clear the size */
+ 	if (ji->ea.flag == 0)
+@@ -557,6 +568,12 @@ static int ea_get(struct inode *inode, s
+ 
+ 		quota_allocation = blocks_needed;
+ 
++		/* Allocate new blocks to dlimit. */
++		rc = -ENOSPC;
++		if (DLIMIT_ALLOC_BLOCK(inode, blocks_needed))
++			goto clean_up;
++		dlimit_allocation = blocks_needed;
++
+ 		rc = dbAlloc(inode, INOHINT(inode), (s64) blocks_needed,
+ 			     &blkno);
+ 		if (rc)
+@@ -613,6 +630,9 @@ static int ea_get(struct inode *inode, s
+ 	return ea_size;
+ 
+       clean_up:
++	/* Rollback dlimit allocation */
++	if (dlimit_allocation)
++		DLIMIT_FREE_BLOCK(inode, dlimit_allocation);
+ 	/* Rollback quota allocation */
+ 	if (quota_allocation)
+ 		DQUOT_FREE_BLOCK(inode, quota_allocation);
+@@ -689,8 +709,10 @@ static int ea_put(tid_t tid, struct inod
+ 	}
+ 
+ 	/* If old blocks exist, they must be removed from quota allocation. */
+-	if (old_blocks)
++	if (old_blocks) {
++		DLIMIT_FREE_BLOCK(inode, old_blocks);
+ 		DQUOT_FREE_BLOCK(inode, old_blocks);
++	}
+ 
+ 	inode->i_ctime = CURRENT_TIME;
+ 
+Index: vserver-sources-2.0.1_2.6.15/fs/libfs.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/libfs.c
++++ vserver-sources-2.0.1_2.6.15/fs/libfs.c
+@@ -122,7 +122,8 @@ static inline unsigned char dt_type(stru
+  * both impossible due to the lock on directory.
+  */
+ 
+-int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir)
++static inline int do_dcache_readdir_filter(struct file * filp,
++	void * dirent, filldir_t filldir, int (*filter)(struct dentry *dentry))
+ {
+ 	struct dentry *dentry = filp->f_dentry;
+ 	struct dentry *cursor = filp->private_data;
+@@ -156,6 +157,8 @@ int dcache_readdir(struct file * filp, v
+ 				next = list_entry(p, struct dentry, d_child);
+ 				if (d_unhashed(next) || !next->d_inode)
+ 					continue;
++				if (filter && !filter(next))
++					continue;
+ 
+ 				spin_unlock(&dcache_lock);
+ 				if (filldir(dirent, next->d_name.name, next->d_name.len, filp->f_pos, next->d_inode->i_ino, dt_type(next->d_inode)) < 0)
+@@ -172,6 +175,18 @@ int dcache_readdir(struct file * filp, v
+ 	return 0;
+ }
+ 
++int dcache_readdir(struct file * filp, void * dirent, filldir_t filldir)
++{
++	return do_dcache_readdir_filter(filp, dirent, filldir, NULL);
++}
++
++int dcache_readdir_filter(struct file * filp, void * dirent, filldir_t filldir,
++	int (*filter)(struct dentry *))
++{
++	return do_dcache_readdir_filter(filp, dirent, filldir, filter);
++}
++
++
+ ssize_t generic_read_dir(struct file *filp, char __user *buf, size_t siz, loff_t *ppos)
+ {
+ 	return -EISDIR;
+@@ -620,6 +635,7 @@ EXPORT_SYMBOL(dcache_dir_close);
+ EXPORT_SYMBOL(dcache_dir_lseek);
+ EXPORT_SYMBOL(dcache_dir_open);
+ EXPORT_SYMBOL(dcache_readdir);
++EXPORT_SYMBOL(dcache_readdir_filter);
+ EXPORT_SYMBOL(generic_read_dir);
+ EXPORT_SYMBOL(get_sb_pseudo);
+ EXPORT_SYMBOL(simple_commit_write);
+Index: vserver-sources-2.0.1_2.6.15/fs/locks.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/locks.c
++++ vserver-sources-2.0.1_2.6.15/fs/locks.c
+@@ -125,6 +125,7 @@
+ #include <linux/syscalls.h>
+ #include <linux/time.h>
+ #include <linux/rcupdate.h>
++#include <linux/vs_limit.h>
+ 
+ #include <asm/semaphore.h>
+ #include <asm/uaccess.h>
+@@ -150,12 +151,16 @@ static kmem_cache_t *filelock_cache;
+ /* Allocate an empty lock structure. */
+ static struct file_lock *locks_alloc_lock(void)
+ {
++	if (!vx_locks_avail(1))
++		return NULL;
+ 	return kmem_cache_alloc(filelock_cache, SLAB_KERNEL);
+ }
+ 
+ /* Free a lock which is not in use. */
+ static inline void locks_free_lock(struct file_lock *fl)
+ {
++	vx_locks_dec(fl);
++
+ 	if (fl == NULL) {
+ 		BUG();
+ 		return;
+@@ -199,6 +204,7 @@ void locks_init_lock(struct file_lock *f
+ 	fl->fl_start = fl->fl_end = 0;
+ 	fl->fl_ops = NULL;
+ 	fl->fl_lmops = NULL;
++	fl->fl_xid = -1;
+ }
+ 
+ EXPORT_SYMBOL(locks_init_lock);
+@@ -236,6 +242,8 @@ void locks_copy_lock(struct file_lock *n
+ 		fl->fl_ops->fl_copy_lock(new, fl);
+ 	if (fl->fl_lmops && fl->fl_lmops->fl_copy_lock)
+ 		fl->fl_lmops->fl_copy_lock(new, fl);
++
++	new->fl_xid = fl->fl_xid;
+ }
+ 
+ EXPORT_SYMBOL(locks_copy_lock);
+@@ -272,6 +280,11 @@ static int flock_make_lock(struct file *
+ 	fl->fl_flags = FL_FLOCK;
+ 	fl->fl_type = type;
+ 	fl->fl_end = OFFSET_MAX;
++
++	vxd_assert(filp->f_xid == vx_current_xid(),
++		"f_xid(%d) == current(%d)", filp->f_xid, vx_current_xid());
++	fl->fl_xid = filp->f_xid;
++	vx_locks_inc(fl);
+ 	
+ 	*lock = fl;
+ 	return 0;
+@@ -457,6 +470,11 @@ static int lease_alloc(struct file *filp
+ 	if (fl == NULL)
+ 		return -ENOMEM;
+ 
++	fl->fl_xid = vx_current_xid();
++	if (filp)
++		vxd_assert(filp->f_xid == fl->fl_xid,
++			"f_xid(%d) == fl_xid(%d)", filp->f_xid, fl->fl_xid);
++	vx_locks_inc(fl);
+ 	error = lease_init(filp, type, fl);
+ 	if (error)
+ 		return error;
+@@ -772,7 +790,7 @@ out:
+ 
+ EXPORT_SYMBOL(posix_lock_file);
+ 
+-static int __posix_lock_file(struct inode *inode, struct file_lock *request)
++static int __posix_lock_file(struct inode *inode, struct file_lock *request, xid_t xid)
+ {
+ 	struct file_lock *fl;
+ 	struct file_lock *new_fl, *new_fl2;
+@@ -781,12 +799,18 @@ static int __posix_lock_file(struct inod
+ 	struct file_lock **before;
+ 	int error, added = 0;
+ 
++	vxd_assert(xid == vx_current_xid(),
++		"xid(%d) == current(%d)", xid, vx_current_xid());
+ 	/*
+ 	 * We may need two file_lock structures for this operation,
+ 	 * so we get them in advance to avoid races.
+ 	 */
+ 	new_fl = locks_alloc_lock();
++	new_fl->fl_xid = xid;
++	vx_locks_inc(new_fl);
+ 	new_fl2 = locks_alloc_lock();
++	new_fl2->fl_xid = xid;
++	vx_locks_inc(new_fl2);
+ 
+ 	lock_kernel();
+ 	if (request->fl_type != F_UNLCK) {
+@@ -964,7 +988,7 @@ static int __posix_lock_file(struct inod
+  */
+ int posix_lock_file(struct file *filp, struct file_lock *fl)
+ {
+-	return __posix_lock_file(filp->f_dentry->d_inode, fl);
++	return __posix_lock_file(filp->f_dentry->d_inode, fl, filp->f_xid);
+ }
+ 
+ /**
+@@ -981,7 +1005,8 @@ int posix_lock_file_wait(struct file *fi
+ 	int error;
+ 	might_sleep ();
+ 	for (;;) {
+-		error = __posix_lock_file(filp->f_dentry->d_inode, fl);
++		error = __posix_lock_file(filp->f_dentry->d_inode,
++			fl, filp->f_xid);
+ 		if ((error != -EAGAIN) || !(fl->fl_flags & FL_SLEEP))
+ 			break;
+ 		error = wait_event_interruptible(fl->fl_wait, !fl->fl_next);
+@@ -1053,7 +1078,7 @@ int locks_mandatory_area(int read_write,
+ 	fl.fl_end = offset + count - 1;
+ 
+ 	for (;;) {
+-		error = __posix_lock_file(inode, &fl);
++		error = __posix_lock_file(inode, &fl, filp->f_xid);
+ 		if (error != -EAGAIN)
+ 			break;
+ 		if (!(fl.fl_flags & FL_SLEEP))
+@@ -1614,6 +1639,11 @@ int fcntl_setlk(unsigned int fd, struct 
+ 	if (file_lock == NULL)
+ 		return -ENOLCK;
+ 
++	vxd_assert(filp->f_xid == vx_current_xid(),
++		"f_xid(%d) == current(%d)", filp->f_xid, vx_current_xid());
++	file_lock->fl_xid = filp->f_xid;
++	vx_locks_inc(file_lock);
++
+ 	/*
+ 	 * This might block, so we do it before checking the inode.
+ 	 */
+@@ -1666,7 +1696,8 @@ again:
+ 		error = filp->f_op->lock(filp, cmd, file_lock);
+ 	else {
+ 		for (;;) {
+-			error = __posix_lock_file(inode, file_lock);
++			error = __posix_lock_file(inode, file_lock,
++				filp->f_xid);
+ 			if ((error != -EAGAIN) || (cmd == F_SETLK))
+ 				break;
+ 			error = wait_event_interruptible(file_lock->fl_wait,
+@@ -1757,6 +1788,11 @@ int fcntl_setlk64(unsigned int fd, struc
+ 	if (file_lock == NULL)
+ 		return -ENOLCK;
+ 
++	vxd_assert(filp->f_xid == vx_current_xid(),
++		"f_xid(%d) == current(%d)", filp->f_xid, vx_current_xid());
++	file_lock->fl_xid = filp->f_xid;
++	vx_locks_inc(file_lock);
++
+ 	/*
+ 	 * This might block, so we do it before checking the inode.
+ 	 */
+@@ -1809,7 +1845,8 @@ again:
+ 		error = filp->f_op->lock(filp, cmd, file_lock);
+ 	else {
+ 		for (;;) {
+-			error = __posix_lock_file(inode, file_lock);
++			error = __posix_lock_file(inode, file_lock,
++				filp->f_xid);
+ 			if ((error != -EAGAIN) || (cmd == F_SETLK64))
+ 				break;
+ 			error = wait_event_interruptible(file_lock->fl_wait,
+@@ -2086,6 +2123,10 @@ int get_locks_status(char *buffer, char 
+ 	list_for_each(tmp, &file_lock_list) {
+ 		struct list_head *btmp;
+ 		struct file_lock *fl = list_entry(tmp, struct file_lock, fl_link);
++
++		if (!vx_check(fl->fl_xid, VX_IDENT|VX_WATCH))
++			continue;
++
+ 		lock_get_status(q, fl, ++i, "");
+ 		move_lock_status(&q, &pos, offset);
+ 
+Index: vserver-sources-2.0.1_2.6.15/fs/namei.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/namei.c
++++ vserver-sources-2.0.1_2.6.15/fs/namei.c
+@@ -29,6 +29,9 @@
+ #include <linux/mount.h>
+ #include <linux/audit.h>
+ #include <linux/file.h>
++#include <linux/proc_fs.h>
++#include <linux/vserver/inode.h>
++#include <linux/vserver/debug.h>
+ #include <asm/namei.h>
+ #include <asm/uaccess.h>
+ 
+@@ -222,6 +225,24 @@ int generic_permission(struct inode *ino
+ 	return -EACCES;
+ }
+ 
++static inline int xid_permission(struct inode *inode, int mask, struct nameidata *nd)
++{
++	if (IS_BARRIER(inode) && !vx_check(0, VX_ADMIN)) {
++		vxwprintk(1, "xid=%d did hit the barrier.",
++			vx_current_xid());
++		return -EACCES;
++	}
++	if (inode->i_xid == 0)
++		return 0;
++	if (vx_check(inode->i_xid, VX_ADMIN|VX_WATCH|VX_IDENT))
++		return 0;
++
++	vxwprintk(1, "xid=%d denied access to %p[#%d,%lu] »%s«.",
++		vx_current_xid(), inode, inode->i_xid, inode->i_ino,
++		vxd_path(nd->dentry, nd->mnt));
++	return -EACCES;
++}
++
+ int permission(struct inode *inode, int mask, struct nameidata *nd)
+ {
+ 	int retval, submask;
+@@ -246,6 +267,8 @@ int permission(struct inode *inode, int 
+ 
+ 	/* Ordinary permission routines do not understand MAY_APPEND. */
+ 	submask = mask & ~MAY_APPEND;
++	if ((retval = xid_permission(inode, mask, nd)))
++		return retval;
+ 	if (inode->i_op && inode->i_op->permission)
+ 		retval = inode->i_op->permission(inode, submask, nd);
+ 	else
+@@ -699,7 +722,8 @@ static inline void follow_dotdot(struct 
+ 		if (nd->dentry == current->fs->root &&
+ 		    nd->mnt == current->fs->rootmnt) {
+                         read_unlock(&current->fs->lock);
+-			break;
++			/* for sane '/' avoid follow_mount() */
++			return;
+ 		}
+                 read_unlock(&current->fs->lock);
+ 		spin_lock(&dcache_lock);
+@@ -736,16 +760,34 @@ static int do_lookup(struct nameidata *n
+ {
+ 	struct vfsmount *mnt = nd->mnt;
+ 	struct dentry *dentry = __d_lookup(nd->dentry, name);
++	struct inode *inode;
+ 
+ 	if (!dentry)
+ 		goto need_lookup;
+ 	if (dentry->d_op && dentry->d_op->d_revalidate)
+ 		goto need_revalidate;
++	inode = dentry->d_inode;
++	if (!inode)
++		goto done;
++	if (!vx_check(inode->i_xid, VX_WATCH|VX_ADMIN|VX_HOSTID|VX_IDENT))
++		goto hidden;
++	if (inode->i_sb->s_magic == PROC_SUPER_MAGIC) {
++		struct proc_dir_entry *de = PDE(inode);
++
++		if (de && !vx_hide_check(0, de->vx_flags))
++			goto hidden;
++	}
+ done:
+ 	path->mnt = mnt;
+ 	path->dentry = dentry;
+ 	__follow_mount(path);
+ 	return 0;
++hidden:
++	vxwprintk(1, "xid=%d did lookup hidden %p[#%d,%lu] »%s«.",
++		vx_current_xid(), inode, inode->i_xid, inode->i_ino,
++		vxd_path(dentry, mnt));
++	dput(dentry);
++	return -ENOENT;
+ 
+ need_lookup:
+ 	dentry = real_lookup(nd->dentry, name, nd);
+@@ -1308,7 +1350,7 @@ static inline int may_delete(struct inod
+ 	if (IS_APPEND(dir))
+ 		return -EPERM;
+ 	if (check_sticky(dir, victim->d_inode)||IS_APPEND(victim->d_inode)||
+-	    IS_IMMUTABLE(victim->d_inode))
++		IS_IXORUNLINK(victim->d_inode))
+ 		return -EPERM;
+ 	if (isdir) {
+ 		if (!S_ISDIR(victim->d_inode->i_mode))
+@@ -2102,7 +2144,7 @@ int vfs_link(struct dentry *old_dentry, 
+ 	/*
+ 	 * A link to an append-only or immutable file cannot be created.
+ 	 */
+-	if (IS_APPEND(inode) || IS_IMMUTABLE(inode))
++	if (IS_APPEND(inode) || IS_IXORUNLINK(inode))
+ 		return -EPERM;
+ 	if (!dir->i_op || !dir->i_op->link)
+ 		return -EPERM;
+Index: vserver-sources-2.0.1_2.6.15/fs/namespace.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/namespace.c
++++ vserver-sources-2.0.1_2.6.15/fs/namespace.c
+@@ -22,6 +22,8 @@
+ #include <linux/namei.h>
+ #include <linux/security.h>
+ #include <linux/mount.h>
++#include <linux/vserver/namespace.h>
++#include <linux/vserver/xid.h>
+ #include <asm/uaccess.h>
+ #include <asm/unistd.h>
+ #include "pnode.h"
+@@ -236,6 +238,7 @@ static struct vfsmount *clone_mnt(struct
+ 		mnt->mnt_root = dget(root);
+ 		mnt->mnt_mountpoint = mnt->mnt_root;
+ 		mnt->mnt_parent = mnt;
++		mnt->mnt_xid = old->mnt_xid;
+ 
+ 		if (flag & CL_SLAVE) {
+ 			list_add(&mnt->mnt_slave, &old->mnt_slave_list);
+@@ -344,6 +347,32 @@ static inline void mangle(struct seq_fil
+ 	seq_escape(m, s, " \t\n\\");
+ }
+ 
++static int mnt_is_reachable(struct vfsmount *mnt)
++{
++	struct vfsmount *root_mnt;
++	struct dentry *root, *point;
++	int ret;
++
++	if (mnt == mnt->mnt_namespace->root)
++		return 1;
++
++	spin_lock(&dcache_lock);
++	root_mnt = current->fs->rootmnt;
++	root = current->fs->root;
++	point = root;
++
++	while ((mnt != mnt->mnt_parent) && (mnt != root_mnt)) {
++		point = mnt->mnt_mountpoint;
++		mnt = mnt->mnt_parent;
++	}
++
++	ret = (mnt == root_mnt) && is_subdir(point, root);
++
++	spin_unlock(&dcache_lock);
++
++	return ret;
++}
++
+ static int show_vfsmnt(struct seq_file *m, void *v)
+ {
+ 	struct vfsmount *mnt = v;
+@@ -357,6 +386,7 @@ static int show_vfsmnt(struct seq_file *
+ 		{ MS_MANDLOCK, ",mand" },
+ 		{ MS_NOATIME, ",noatime" },
+ 		{ MS_NODIRATIME, ",nodiratime" },
++		{ MS_TAGXID, ",tagxid" },
+ 		{ 0, NULL }
+ 	};
+ 	static struct proc_fs_info mnt_info[] = {
+@@ -367,10 +397,20 @@ static int show_vfsmnt(struct seq_file *
+ 	};
+ 	struct proc_fs_info *fs_infop;
+ 
+-	mangle(m, mnt->mnt_devname ? mnt->mnt_devname : "none");
+-	seq_putc(m, ' ');
+-	seq_path(m, mnt, mnt->mnt_root, " \t\n\\");
+-	seq_putc(m, ' ');
++	if (vx_flags(VXF_HIDE_MOUNT, 0))
++		return 0;
++	if (!mnt_is_reachable(mnt))
++		return 0;
++
++	if (!vx_check(0, VX_ADMIN|VX_WATCH) &&
++		mnt == current->fs->rootmnt) {
++		seq_puts(m, "/dev/root / ");
++	} else {
++		mangle(m, mnt->mnt_devname ? mnt->mnt_devname : "none");
++		seq_putc(m, ' ');
++		seq_path(m, mnt, mnt->mnt_root, " \t\n\\");
++		seq_putc(m, ' ');
++	}
+ 	mangle(m, mnt->mnt_sb->s_type->name);
+ 	seq_puts(m, mnt->mnt_sb->s_flags & MS_RDONLY ? " ro" : " rw");
+ 	for (fs_infop = fs_info; fs_infop->flag; fs_infop++) {
+@@ -381,6 +421,8 @@ static int show_vfsmnt(struct seq_file *
+ 		if (mnt->mnt_flags & fs_infop->flag)
+ 			seq_puts(m, fs_infop->str);
+ 	}
++	if (mnt->mnt_flags & MNT_XID)
++		seq_printf(m, ",xid=%d", mnt->mnt_xid);
+ 	if (mnt->mnt_sb->s_op->show_options)
+ 		err = mnt->mnt_sb->s_op->show_options(m, mnt);
+ 	seq_puts(m, " 0 0\n");
+@@ -470,15 +512,11 @@ void release_mounts(struct list_head *he
+ 	}
+ }
+ 
+-void umount_tree(struct vfsmount *mnt, int propagate, struct list_head *kill)
++static inline void __umount_list(struct vfsmount *mnt,
++	int propagate, struct list_head *kill)
+ {
+ 	struct vfsmount *p;
+ 
+-	for (p = mnt; p; p = next_mnt(p, mnt)) {
+-		list_del(&p->mnt_hash);
+-		list_add(&p->mnt_hash, kill);
+-	}
+-
+ 	if (propagate)
+ 		propagate_umount(kill);
+ 
+@@ -494,6 +532,33 @@ void umount_tree(struct vfsmount *mnt, i
+ 	}
+ }
+ 
++void umount_tree(struct vfsmount *mnt, int propagate, struct list_head *kill)
++{
++	struct vfsmount *p;
++
++	for (p = mnt; p; p = next_mnt(p, mnt)) {
++		list_del(&p->mnt_hash);
++		list_add(&p->mnt_hash, kill);
++		// p->mnt_namespace = NULL;
++	}
++	__umount_list(mnt, propagate, kill);
++}
++
++void umount_unused(struct vfsmount *mnt, struct fs_struct *fs)
++{
++	struct vfsmount *p;
++	LIST_HEAD(kill);
++
++	for (p = mnt; p; p = next_mnt(p, mnt)) {
++		if (p == fs->rootmnt || p == fs->pwdmnt)
++			continue;
++		list_del(&p->mnt_list);
++		list_add(&p->mnt_list, &kill);
++		p->mnt_namespace = NULL;
++	}
++	__umount_list(mnt, 0, &kill);
++}
++
+ static int do_umount(struct vfsmount *mnt, int flags)
+ {
+ 	struct super_block *sb = mnt->mnt_sb;
+@@ -603,7 +668,7 @@ asmlinkage long sys_umount(char __user *
+ 		goto dput_and_out;
+ 
+ 	retval = -EPERM;
+-	if (!capable(CAP_SYS_ADMIN))
++	if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SECURE_MOUNT))
+ 		goto dput_and_out;
+ 
+ 	retval = do_umount(nd.mnt, flags);
+@@ -629,6 +694,8 @@ static int mount_is_safe(struct nameidat
+ {
+ 	if (capable(CAP_SYS_ADMIN))
+ 		return 0;
++	if (vx_ccaps(VXC_SECURE_MOUNT))
++		return 0;
+ 	return -EPERM;
+ #ifdef notyet
+ 	if (S_ISLNK(nd->dentry->d_inode->i_mode))
+@@ -856,11 +923,12 @@ static int do_change_type(struct nameida
+ /*
+  * do loopback mount.
+  */
+-static int do_loopback(struct nameidata *nd, char *old_name, int recurse)
++static int do_loopback(struct nameidata *nd, char *old_name, xid_t xid, int flags)
+ {
+ 	struct nameidata old_nd;
+ 	struct vfsmount *mnt = NULL;
+ 	int err = mount_is_safe(nd);
++	int recurse = flags & MS_REC;
+ 	if (err)
+ 		return err;
+ 	if (!old_name || !*old_name)
+@@ -886,6 +954,10 @@ static int do_loopback(struct nameidata 
+ 	if (!mnt)
+ 		goto out;
+ 
++		if (flags & MS_XID) {
++			mnt->mnt_xid = xid;
++			mnt->mnt_flags |= MNT_XID;
++		}
+ 	err = graft_tree(mnt, nd);
+ 	if (err) {
+ 		LIST_HEAD(umount_list);
+@@ -907,12 +979,12 @@ out:
+  * on it - tough luck.
+  */
+ static int do_remount(struct nameidata *nd, int flags, int mnt_flags,
+-		      void *data)
++		      void *data, xid_t xid)
+ {
+ 	int err;
+ 	struct super_block *sb = nd->mnt->mnt_sb;
+ 
+-	if (!capable(CAP_SYS_ADMIN))
++	if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SECURE_REMOUNT))
+ 		return -EPERM;
+ 
+ 	if (!check_mnt(nd->mnt))
+@@ -946,7 +1018,7 @@ static int do_move_mount(struct nameidat
+ 	struct nameidata old_nd, parent_nd;
+ 	struct vfsmount *p;
+ 	int err = 0;
+-	if (!capable(CAP_SYS_ADMIN))
++	if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SECURE_MOUNT))
+ 		return -EPERM;
+ 	if (!old_name || !*old_name)
+ 		return -EINVAL;
+@@ -1026,7 +1098,7 @@ static int do_new_mount(struct nameidata
+ 		return -EINVAL;
+ 
+ 	/* we need capabilities... */
+-	if (!capable(CAP_SYS_ADMIN))
++	if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SECURE_MOUNT))
+ 		return -EPERM;
+ 
+ 	mnt = do_kern_mount(type, flags, name, data);
+@@ -1264,6 +1336,7 @@ long do_mount(char *dev_name, char *dir_
+ 	struct nameidata nd;
+ 	int retval = 0;
+ 	int mnt_flags = 0;
++	xid_t xid = 0;
+ 
+ 	/* Discard magic */
+ 	if ((flags & MS_MGC_MSK) == MS_MGC_VAL)
+@@ -1279,6 +1352,14 @@ long do_mount(char *dev_name, char *dir_
+ 	if (data_page)
+ 		((char *)data_page)[PAGE_SIZE - 1] = 0;
+ 
++	retval = vx_parse_xid(data_page, &xid, 1);
++	if (retval) {
++		mnt_flags |= MNT_XID;
++		/* bind and re-mounts get xid flag */
++		if (flags & (MS_BIND|MS_REMOUNT))
++			flags |= MS_XID;
++	}
++
+ 	/* Separate the per-mountpoint flags */
+ 	if (flags & MS_NOSUID)
+ 		mnt_flags |= MNT_NOSUID;
+@@ -1288,6 +1369,9 @@ long do_mount(char *dev_name, char *dir_
+ 		mnt_flags |= MNT_NOEXEC;
+ 	flags &= ~(MS_NOSUID | MS_NOEXEC | MS_NODEV | MS_ACTIVE);
+ 
++	if (vx_ccaps(VXC_SECURE_MOUNT))
++		mnt_flags |= MNT_NODEV;
++
+ 	/* ... and get the mountpoint */
+ 	retval = path_lookup(dir_name, LOOKUP_FOLLOW, &nd);
+ 	if (retval)
+@@ -1299,9 +1383,9 @@ long do_mount(char *dev_name, char *dir_
+ 
+ 	if (flags & MS_REMOUNT)
+ 		retval = do_remount(&nd, flags & ~MS_REMOUNT, mnt_flags,
+-				    data_page);
++				    data_page, xid);
+ 	else if (flags & MS_BIND)
+-		retval = do_loopback(&nd, dev_name, flags & MS_REC);
++		retval = do_loopback(&nd, dev_name, flags & MS_REC, xid);
+ 	else if (flags & (MS_SHARED | MS_PRIVATE | MS_SLAVE | MS_UNBINDABLE))
+ 		retval = do_change_type(&nd, flags);
+ 	else if (flags & MS_MOVE)
+@@ -1330,7 +1414,7 @@ int copy_namespace(int flags, struct tas
+ 	if (!(flags & CLONE_NEWNS))
+ 		return 0;
+ 
+-	if (!capable(CAP_SYS_ADMIN)) {
++	if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SECURE_MOUNT)) {
+ 		put_namespace(namespace);
+ 		return -EPERM;
+ 	}
+Index: vserver-sources-2.0.1_2.6.15/fs/nfs/dir.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/nfs/dir.c
++++ vserver-sources-2.0.1_2.6.15/fs/nfs/dir.c
+@@ -31,6 +31,7 @@
+ #include <linux/pagemap.h>
+ #include <linux/smp_lock.h>
+ #include <linux/namei.h>
++#include <linux/vserver/xid.h>
+ 
+ #include "nfs4_fs.h"
+ #include "delegation.h"
+@@ -869,6 +870,7 @@ static struct dentry *nfs_lookup(struct 
+ 	inode = nfs_fhget(dentry->d_sb, &fhandle, &fattr);
+ 	if (!inode)
+ 		goto out_unlock;
++	vx_propagate_xid(nd, inode);
+ no_entry:
+ 	res = d_add_unique(dentry, inode);
+ 	if (res != NULL)
+Index: vserver-sources-2.0.1_2.6.15/fs/nfs/inode.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/nfs/inode.c
++++ vserver-sources-2.0.1_2.6.15/fs/nfs/inode.c
+@@ -35,6 +35,7 @@
+ #include <linux/mount.h>
+ #include <linux/nfs_idmap.h>
+ #include <linux/vfs.h>
++#include <linux/vserver/xid.h>
+ 
+ #include <asm/system.h>
+ #include <asm/uaccess.h>
+@@ -340,12 +341,16 @@ nfs_sb_init(struct super_block *sb, rpc_
+ 	}
+ 	server->backing_dev_info.ra_pages = server->rpages * NFS_MAX_READAHEAD;
+ 
++	if (server->flags & NFS_MOUNT_TAGXID)
++		sb->s_flags |= MS_TAGXID;
++
+ 	sb->s_maxbytes = fsinfo.maxfilesize;
+ 	if (sb->s_maxbytes > MAX_LFS_FILESIZE) 
+ 		sb->s_maxbytes = MAX_LFS_FILESIZE; 
+ 
+ 	server->client->cl_intr = (server->flags & NFS_MOUNT_INTR) ? 1 : 0;
+ 	server->client->cl_softrtry = (server->flags & NFS_MOUNT_SOFT) ? 1 : 0;
++	server->client->cl_tagxid = (server->flags & NFS_MOUNT_TAGXID) ? 1 : 0;
+ 
+ 	/* We're airborne Set socket buffersize */
+ 	rpc_setbufsize(server->client, server->wsize + 100, server->rsize + 100);
+@@ -417,6 +422,7 @@ nfs_create_client(struct nfs_server *ser
+ 
+ 	clnt->cl_intr     = 1;
+ 	clnt->cl_softrtry = 1;
++	clnt->cl_tagxid   = 1;
+ 	clnt->cl_chatty   = 1;
+ 
+ 	return clnt;
+@@ -599,6 +605,7 @@ static int nfs_show_options(struct seq_f
+ 		{ NFS_MOUNT_NOAC, ",noac", "" },
+ 		{ NFS_MOUNT_NONLM, ",nolock", ",lock" },
+ 		{ NFS_MOUNT_NOACL, ",noacl", "" },
++		{ NFS_MOUNT_TAGXID, ",tagxid", "" },
+ 		{ 0, NULL, NULL }
+ 	};
+ 	struct proc_nfs_info *nfs_infop;
+@@ -814,8 +821,10 @@ nfs_fhget(struct super_block *sb, struct
+ 			nfsi->change_attr = fattr->change_attr;
+ 		inode->i_size = nfs_size_to_loff_t(fattr->size);
+ 		inode->i_nlink = fattr->nlink;
+-		inode->i_uid = fattr->uid;
+-		inode->i_gid = fattr->gid;
++		inode->i_uid = INOXID_UID(XID_TAG(inode), fattr->uid, fattr->gid);
++		inode->i_gid = INOXID_GID(XID_TAG(inode), fattr->uid, fattr->gid);
++		inode->i_xid = INOXID_XID(XID_TAG(inode), fattr->uid, fattr->gid, 0);
++					 /* maybe fattr->xid someday */
+ 		if (fattr->valid & (NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4)) {
+ 			/*
+ 			 * report the blocks in 512byte units
+@@ -907,6 +916,8 @@ void nfs_setattr_update_inode(struct ino
+ 			inode->i_uid = attr->ia_uid;
+ 		if ((attr->ia_valid & ATTR_GID) != 0)
+ 			inode->i_gid = attr->ia_gid;
++		if ((attr->ia_valid & ATTR_XID) && IS_TAGXID(inode))
++			inode->i_xid = attr->ia_xid;
+ 		spin_lock(&inode->i_lock);
+ 		NFS_I(inode)->cache_validity |= NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
+ 		spin_unlock(&inode->i_lock);
+@@ -1266,6 +1277,9 @@ static int nfs_check_inode_attributes(st
+ 	struct nfs_inode *nfsi = NFS_I(inode);
+ 	loff_t cur_size, new_isize;
+ 	int data_unstable;
++	uid_t uid;
++	gid_t gid;
++	xid_t xid;
+ 
+ 
+ 	/* Are we in the process of updating data on the server? */
+@@ -1315,10 +1329,15 @@ static int nfs_check_inode_attributes(st
+ 			nfsi->cache_validity |= NFS_INO_REVAL_PAGECACHE;
+ 	}
+ 
++	uid = INOXID_UID(XID_TAG(inode), fattr->uid, fattr->gid);
++	gid = INOXID_GID(XID_TAG(inode), fattr->uid, fattr->gid);
++	xid = INOXID_XID(XID_TAG(inode), fattr->uid, fattr->gid, 0);
++
+ 	/* Have any file permissions changed? */
+ 	if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO)
+-			|| inode->i_uid != fattr->uid
+-			|| inode->i_gid != fattr->gid)
++			|| inode->i_uid != uid
++			|| inode->i_gid != gid
++			|| inode->i_xid != xid)
+ 		nfsi->cache_validity |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS | NFS_INO_INVALID_ACL;
+ 
+ 	/* Has the link count changed? */
+@@ -1402,6 +1421,9 @@ static int nfs_update_inode(struct inode
+ 	loff_t cur_isize, new_isize;
+ 	unsigned int	invalid = 0;
+ 	int data_stable;
++	uid_t uid;
++	gid_t gid;
++	xid_t xid;
+ 
+ 	dfprintk(VFS, "NFS: %s(%s/%ld ct=%d info=0x%x)\n",
+ 			__FUNCTION__, inode->i_sb->s_id, inode->i_ino,
+@@ -1483,15 +1505,21 @@ static int nfs_update_inode(struct inode
+ 	}
+ 	memcpy(&inode->i_atime, &fattr->atime, sizeof(inode->i_atime));
+ 
++	uid = INOXID_UID(XID_TAG(inode), fattr->uid, fattr->gid);
++	gid = INOXID_GID(XID_TAG(inode), fattr->uid, fattr->gid);
++	xid = INOXID_XID(XID_TAG(inode), fattr->uid, fattr->gid, 0);
++
+ 	if ((inode->i_mode & S_IALLUGO) != (fattr->mode & S_IALLUGO) ||
+-	    inode->i_uid != fattr->uid ||
+-	    inode->i_gid != fattr->gid)
++	    inode->i_uid != uid ||
++	    inode->i_gid != gid ||
++	    inode->i_xid != xid)
+ 		invalid |= NFS_INO_INVALID_ATTR|NFS_INO_INVALID_ACCESS|NFS_INO_INVALID_ACL;
+ 
+ 	inode->i_mode = fattr->mode;
+ 	inode->i_nlink = fattr->nlink;
+-	inode->i_uid = fattr->uid;
+-	inode->i_gid = fattr->gid;
++	inode->i_uid = uid;
++	inode->i_gid = gid;
++	inode->i_xid = xid;
+ 
+ 	if (fattr->valid & (NFS_ATTR_FATTR_V3 | NFS_ATTR_FATTR_V4)) {
+ 		/*
+Index: vserver-sources-2.0.1_2.6.15/fs/nfs/nfs3xdr.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/nfs/nfs3xdr.c
++++ vserver-sources-2.0.1_2.6.15/fs/nfs/nfs3xdr.c
+@@ -22,6 +22,7 @@
+ #include <linux/nfs3.h>
+ #include <linux/nfs_fs.h>
+ #include <linux/nfsacl.h>
++#include <linux/vserver/xid.h>
+ 
+ #define NFSDBG_FACILITY		NFSDBG_XDR
+ 
+@@ -178,7 +179,7 @@ xdr_decode_fattr(u32 *p, struct nfs_fatt
+ }
+ 
+ static inline u32 *
+-xdr_encode_sattr(u32 *p, struct iattr *attr)
++xdr_encode_sattr(u32 *p, struct iattr *attr, int tagxid)
+ {
+ 	if (attr->ia_valid & ATTR_MODE) {
+ 		*p++ = xdr_one;
+@@ -186,15 +187,17 @@ xdr_encode_sattr(u32 *p, struct iattr *a
+ 	} else {
+ 		*p++ = xdr_zero;
+ 	}
+-	if (attr->ia_valid & ATTR_UID) {
++	if (attr->ia_valid & ATTR_UID ||
++		(tagxid && (attr->ia_valid & ATTR_XID))) {
+ 		*p++ = xdr_one;
+-		*p++ = htonl(attr->ia_uid);
++		*p++ = htonl(XIDINO_UID(tagxid, attr->ia_uid, attr->ia_xid));
+ 	} else {
+ 		*p++ = xdr_zero;
+ 	}
+-	if (attr->ia_valid & ATTR_GID) {
++	if (attr->ia_valid & ATTR_GID ||
++		(tagxid && (attr->ia_valid & ATTR_XID))) {
+ 		*p++ = xdr_one;
+-		*p++ = htonl(attr->ia_gid);
++		*p++ = htonl(XIDINO_GID(tagxid, attr->ia_gid, attr->ia_xid));
+ 	} else {
+ 		*p++ = xdr_zero;
+ 	}
+@@ -279,7 +282,8 @@ static int
+ nfs3_xdr_sattrargs(struct rpc_rqst *req, u32 *p, struct nfs3_sattrargs *args)
+ {
+ 	p = xdr_encode_fhandle(p, args->fh);
+-	p = xdr_encode_sattr(p, args->sattr);
++	p = xdr_encode_sattr(p, args->sattr,
++		req->rq_task->tk_client->cl_tagxid);
+ 	*p++ = htonl(args->guard);
+ 	if (args->guard)
+ 		p = xdr_encode_time3(p, &args->guardtime);
+@@ -370,7 +374,8 @@ nfs3_xdr_createargs(struct rpc_rqst *req
+ 		*p++ = args->verifier[0];
+ 		*p++ = args->verifier[1];
+ 	} else
+-		p = xdr_encode_sattr(p, args->sattr);
++		p = xdr_encode_sattr(p, args->sattr,
++			req->rq_task->tk_client->cl_tagxid);
+ 
+ 	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+ 	return 0;
+@@ -384,7 +389,8 @@ nfs3_xdr_mkdirargs(struct rpc_rqst *req,
+ {
+ 	p = xdr_encode_fhandle(p, args->fh);
+ 	p = xdr_encode_array(p, args->name, args->len);
+-	p = xdr_encode_sattr(p, args->sattr);
++	p = xdr_encode_sattr(p, args->sattr,
++		req->rq_task->tk_client->cl_tagxid);
+ 	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+ 	return 0;
+ }
+@@ -397,7 +403,8 @@ nfs3_xdr_symlinkargs(struct rpc_rqst *re
+ {
+ 	p = xdr_encode_fhandle(p, args->fromfh);
+ 	p = xdr_encode_array(p, args->fromname, args->fromlen);
+-	p = xdr_encode_sattr(p, args->sattr);
++	p = xdr_encode_sattr(p, args->sattr,
++		req->rq_task->tk_client->cl_tagxid);
+ 	p = xdr_encode_array(p, args->topath, args->tolen);
+ 	req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
+ 	return 0;
+@@ -412,7 +419,8 @@ nfs3_xdr_mknodargs(struct rpc_rqst *req,
+ 	p = xdr_encode_fhandle(p, args->fh);
+ 	p = xdr_encode_array(p, args->name, args->len);
+ 	*p++ = htonl(args->type);
+-	p = xdr_encode_sattr(p, args->sattr);
++	p = xdr_encode_sattr(p, args->sattr,
++		req->rq_task->tk_client->cl_tagxid);
+ 	if (args->type == NF3CHR || args->type == NF3BLK) {
+ 		*p++ = htonl(MAJOR(args->rdev));
+ 		*p++ = htonl(MINOR(args->rdev));
+Index: vserver-sources-2.0.1_2.6.15/fs/nfs/nfsroot.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/nfs/nfsroot.c
++++ vserver-sources-2.0.1_2.6.15/fs/nfs/nfsroot.c
+@@ -87,6 +87,7 @@
+ #include <linux/root_dev.h>
+ #include <net/ipconfig.h>
+ #include <linux/parser.h>
++#include <linux/vs_cvirt.h>
+ 
+ /* Define this to allow debugging output */
+ #undef NFSROOT_DEBUG
+@@ -124,7 +125,7 @@ enum {
+ 	Opt_soft, Opt_hard, Opt_intr,
+ 	Opt_nointr, Opt_posix, Opt_noposix, Opt_cto, Opt_nocto, Opt_ac, 
+ 	Opt_noac, Opt_lock, Opt_nolock, Opt_v2, Opt_v3, Opt_udp, Opt_tcp,
+-	Opt_acl, Opt_noacl,
++	Opt_acl, Opt_noacl, Opt_tagxid,
+ 	/* Error token */
+ 	Opt_err
+ };
+@@ -161,6 +162,7 @@ static match_table_t __initdata tokens =
+ 	{Opt_tcp, "tcp"},
+ 	{Opt_acl, "acl"},
+ 	{Opt_noacl, "noacl"},
++	{Opt_tagxid, "tagxid"},
+ 	{Opt_err, NULL}
+ 	
+ };
+@@ -275,6 +277,11 @@ static int __init root_nfs_parse(char *n
+ 			case Opt_noacl:
+ 				nfs_data.flags |= NFS_MOUNT_NOACL;
+ 				break;
++#ifndef CONFIG_INOXID_NONE
++			case Opt_tagxid:
++				nfs_data.flags |= NFS_MOUNT_TAGXID;
++				break;
++#endif
+ 			default : 
+ 				return 0;
+ 		}
+@@ -310,7 +317,7 @@ static int __init root_nfs_name(char *na
+ 	/* Override them by options set on kernel command-line */
+ 	root_nfs_parse(name, buf);
+ 
+-	cp = system_utsname.nodename;
++	cp = vx_new_uts(nodename);
+ 	if (strlen(buf) + strlen(cp) > NFS_MAXPATHLEN) {
+ 		printk(KERN_ERR "Root-NFS: Pathname for remote directory too long.\n");
+ 		return -1;
+Index: vserver-sources-2.0.1_2.6.15/fs/nfsd/auth.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/nfsd/auth.c
++++ vserver-sources-2.0.1_2.6.15/fs/nfsd/auth.c
+@@ -9,6 +9,7 @@
+ #include <linux/sunrpc/svc.h>
+ #include <linux/sunrpc/svcauth.h>
+ #include <linux/nfsd/nfsd.h>
++#include <linux/vserver/xid.h>
+ 
+ #define	CAP_NFSD_MASK (CAP_FS_MASK|CAP_TO_MASK(CAP_SYS_RESOURCE))
+ 
+@@ -42,18 +43,20 @@ int nfsd_setuser(struct svc_rqst *rqstp,
+ 	}
+ 
+ 	if (cred->cr_uid != (uid_t) -1)
+-		current->fsuid = cred->cr_uid;
++		current->fsuid = INOXID_UID(XID_TAG_NFSD, cred->cr_uid, cred->cr_gid);
+ 	else
+ 		current->fsuid = exp->ex_anon_uid;
+ 	if (cred->cr_gid != (gid_t) -1)
+-		current->fsgid = cred->cr_gid;
++		current->fsgid = INOXID_GID(XID_TAG_NFSD, cred->cr_uid, cred->cr_gid);
+ 	else
+ 		current->fsgid = exp->ex_anon_gid;
+ 
++	current->xid = INOXID_XID(XID_TAG_NFSD, cred->cr_uid, cred->cr_gid, 0);
++
+ 	if (!cred->cr_group_info)
+ 		return -ENOMEM;
+ 	ret = set_current_groups(cred->cr_group_info);
+-	if ((cred->cr_uid)) {
++	if (INOXID_UID(XID_TAG_NFSD, cred->cr_uid, cred->cr_gid)) {
+ 		cap_t(current->cap_effective) &= ~CAP_NFSD_MASK;
+ 	} else {
+ 		cap_t(current->cap_effective) |= (CAP_NFSD_MASK &
+Index: vserver-sources-2.0.1_2.6.15/fs/nfsd/nfs3xdr.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/nfsd/nfs3xdr.c
++++ vserver-sources-2.0.1_2.6.15/fs/nfsd/nfs3xdr.c
+@@ -21,6 +21,7 @@
+ #include <linux/sunrpc/svc.h>
+ #include <linux/nfsd/nfsd.h>
+ #include <linux/nfsd/xdr3.h>
++#include <linux/vserver/xid.h>
+ 
+ #define NFSDDBG_FACILITY		NFSDDBG_XDR
+ 
+@@ -111,6 +112,8 @@ static inline u32 *
+ decode_sattr3(u32 *p, struct iattr *iap)
+ {
+ 	u32	tmp;
++	uid_t	uid = 0;
++	gid_t	gid = 0;
+ 
+ 	iap->ia_valid = 0;
+ 
+@@ -120,12 +123,15 @@ decode_sattr3(u32 *p, struct iattr *iap)
+ 	}
+ 	if (*p++) {
+ 		iap->ia_valid |= ATTR_UID;
+-		iap->ia_uid = ntohl(*p++);
++		uid = ntohl(*p++);
+ 	}
+ 	if (*p++) {
+ 		iap->ia_valid |= ATTR_GID;
+-		iap->ia_gid = ntohl(*p++);
++		gid = ntohl(*p++);
+ 	}
++	iap->ia_uid = INOXID_UID(XID_TAG_NFSD, uid, gid);
++	iap->ia_gid = INOXID_GID(XID_TAG_NFSD, uid, gid);
++	iap->ia_xid = INOXID_XID(XID_TAG_NFSD, uid, gid, 0);
+ 	if (*p++) {
+ 		u64	newsize;
+ 
+@@ -166,8 +172,10 @@ encode_fattr3(struct svc_rqst *rqstp, u3
+ 	*p++ = htonl(nfs3_ftypes[(stat.mode & S_IFMT) >> 12]);
+ 	*p++ = htonl((u32) stat.mode);
+ 	*p++ = htonl((u32) stat.nlink);
+-	*p++ = htonl((u32) nfsd_ruid(rqstp, stat.uid));
+-	*p++ = htonl((u32) nfsd_rgid(rqstp, stat.gid));
++	*p++ = htonl((u32) nfsd_ruid(rqstp,
++		XIDINO_UID(XID_TAG(dentry->d_inode), stat.uid, stat.xid)));
++	*p++ = htonl((u32) nfsd_rgid(rqstp,
++		XIDINO_GID(XID_TAG(dentry->d_inode), stat.gid, stat.xid)));
+ 	if (S_ISLNK(stat.mode) && stat.size > NFS3_MAXPATHLEN) {
+ 		p = xdr_encode_hyper(p, (u64) NFS3_MAXPATHLEN);
+ 	} else {
+Index: vserver-sources-2.0.1_2.6.15/fs/nfsd/nfs4xdr.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/nfsd/nfs4xdr.c
++++ vserver-sources-2.0.1_2.6.15/fs/nfsd/nfs4xdr.c
+@@ -57,6 +57,7 @@
+ #include <linux/nfsd_idmap.h>
+ #include <linux/nfs4.h>
+ #include <linux/nfs4_acl.h>
++#include <linux/vserver/xid.h>
+ 
+ #define NFSDDBG_FACILITY		NFSDDBG_XDR
+ 
+@@ -1561,14 +1562,18 @@ out_acl:
+ 		WRITE32(stat.nlink);
+ 	}
+ 	if (bmval1 & FATTR4_WORD1_OWNER) {
+-		status = nfsd4_encode_user(rqstp, stat.uid, &p, &buflen);
++		status = nfsd4_encode_user(rqstp,
++			XIDINO_UID(XID_TAG(dentry->d_inode),
++			stat.uid, stat.xid), &p, &buflen);
+ 		if (status == nfserr_resource)
+ 			goto out_resource;
+ 		if (status)
+ 			goto out;
+ 	}
+ 	if (bmval1 & FATTR4_WORD1_OWNER_GROUP) {
+-		status = nfsd4_encode_group(rqstp, stat.gid, &p, &buflen);
++		status = nfsd4_encode_group(rqstp,
++			XIDINO_GID(XID_TAG(dentry->d_inode),
++			stat.gid, stat.xid), &p, &buflen);
+ 		if (status == nfserr_resource)
+ 			goto out_resource;
+ 		if (status)
+Index: vserver-sources-2.0.1_2.6.15/fs/nfsd/nfsxdr.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/nfsd/nfsxdr.c
++++ vserver-sources-2.0.1_2.6.15/fs/nfsd/nfsxdr.c
+@@ -15,6 +15,7 @@
+ #include <linux/nfsd/nfsd.h>
+ #include <linux/nfsd/xdr.h>
+ #include <linux/mm.h>
++#include <linux/vserver/xid.h>
+ 
+ #define NFSDDBG_FACILITY		NFSDDBG_XDR
+ 
+@@ -102,6 +103,8 @@ static inline u32 *
+ decode_sattr(u32 *p, struct iattr *iap)
+ {
+ 	u32	tmp, tmp1;
++	uid_t	uid = 0;
++	gid_t	gid = 0;
+ 
+ 	iap->ia_valid = 0;
+ 
+@@ -115,12 +118,15 @@ decode_sattr(u32 *p, struct iattr *iap)
+ 	}
+ 	if ((tmp = ntohl(*p++)) != (u32)-1) {
+ 		iap->ia_valid |= ATTR_UID;
+-		iap->ia_uid = tmp;
++		uid = tmp;
+ 	}
+ 	if ((tmp = ntohl(*p++)) != (u32)-1) {
+ 		iap->ia_valid |= ATTR_GID;
+-		iap->ia_gid = tmp;
++		gid = tmp;
+ 	}
++	iap->ia_uid = INOXID_UID(XID_TAG_NFSD, uid, gid);
++	iap->ia_gid = INOXID_GID(XID_TAG_NFSD, uid, gid);
++	iap->ia_xid = INOXID_XID(XID_TAG_NFSD, uid, gid, 0);
+ 	if ((tmp = ntohl(*p++)) != (u32)-1) {
+ 		iap->ia_valid |= ATTR_SIZE;
+ 		iap->ia_size = tmp;
+@@ -166,8 +172,10 @@ encode_fattr(struct svc_rqst *rqstp, u32
+ 	*p++ = htonl(nfs_ftypes[type >> 12]);
+ 	*p++ = htonl((u32) stat.mode);
+ 	*p++ = htonl((u32) stat.nlink);
+-	*p++ = htonl((u32) nfsd_ruid(rqstp, stat.uid));
+-	*p++ = htonl((u32) nfsd_rgid(rqstp, stat.gid));
++	*p++ = htonl((u32) nfsd_ruid(rqstp,
++		XIDINO_UID(XID_TAG(dentry->d_inode), stat.uid, stat.xid)));
++	*p++ = htonl((u32) nfsd_rgid(rqstp,
++		XIDINO_GID(XID_TAG(dentry->d_inode), stat.gid, stat.xid)));
+ 
+ 	if (S_ISLNK(type) && stat.size > NFS_MAXPATHLEN) {
+ 		*p++ = htonl(NFS_MAXPATHLEN);
+Index: vserver-sources-2.0.1_2.6.15/fs/open.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/open.c
++++ vserver-sources-2.0.1_2.6.15/fs/open.c
+@@ -25,6 +25,9 @@
+ #include <linux/pagemap.h>
+ #include <linux/syscalls.h>
+ #include <linux/rcupdate.h>
++#include <linux/vs_limit.h>
++#include <linux/vs_dlimit.h>
++#include <linux/vserver/xid.h>
+ 
+ #include <asm/unistd.h>
+ 
+@@ -43,6 +46,8 @@ int vfs_statfs(struct super_block *sb, s
+ 			if (retval == 0 && buf->f_frsize == 0)
+ 				buf->f_frsize = buf->f_bsize;
+ 		}
++		if (!vx_check(0, VX_ADMIN|VX_WATCH))
++			vx_vsi_statfs(sb, buf);
+ 	}
+ 	return retval;
+ }
+@@ -687,11 +692,11 @@ static int chown_common(struct dentry * 
+ 	newattrs.ia_valid =  ATTR_CTIME;
+ 	if (user != (uid_t) -1) {
+ 		newattrs.ia_valid |= ATTR_UID;
+-		newattrs.ia_uid = user;
++		newattrs.ia_uid = vx_map_uid(user);
+ 	}
+ 	if (group != (gid_t) -1) {
+ 		newattrs.ia_valid |= ATTR_GID;
+-		newattrs.ia_gid = group;
++		newattrs.ia_gid = vx_map_gid(group);
+ 	}
+ 	if (!S_ISDIR(inode->i_mode))
+ 		newattrs.ia_valid |= ATTR_KILL_SUID|ATTR_KILL_SGID;
+@@ -954,6 +959,7 @@ repeat:
+ 	FD_SET(fd, fdt->open_fds);
+ 	FD_CLR(fd, fdt->close_on_exec);
+ 	fdt->next_fd = fd + 1;
++	vx_openfd_inc(fd);
+ #if 1
+ 	/* Sanity check */
+ 	if (fdt->fd[fd] != NULL) {
+@@ -976,6 +982,7 @@ static inline void __put_unused_fd(struc
+ 	__FD_CLR(fd, fdt->open_fds);
+ 	if (fd < fdt->next_fd)
+ 		fdt->next_fd = fd;
++	vx_openfd_dec(fd);
+ }
+ 
+ void fastcall put_unused_fd(unsigned int fd)
+Index: vserver-sources-2.0.1_2.6.15/fs/proc/array.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/proc/array.c
++++ vserver-sources-2.0.1_2.6.15/fs/proc/array.c
+@@ -75,6 +75,9 @@
+ #include <linux/times.h>
+ #include <linux/cpuset.h>
+ #include <linux/rcupdate.h>
++#include <linux/vs_context.h>
++#include <linux/vs_network.h>
++#include <linux/vs_cvirt.h>
+ 
+ #include <asm/uaccess.h>
+ #include <asm/pgtable.h>
+@@ -135,7 +138,9 @@ static const char *task_state_array[] = 
+ 	"T (stopped)",		/*  4 */
+ 	"T (tracing stop)",	/*  8 */
+ 	"Z (zombie)",		/* 16 */
+-	"X (dead)"		/* 32 */
++	"X (dead)",		/* 32 */
++	"N (noninteractive)",	/* 64 */
++	"H (on hold)"		/* 128 */
+ };
+ 
+ static inline const char * get_task_state(struct task_struct *tsk)
+@@ -144,7 +149,8 @@ static inline const char * get_task_stat
+ 					    TASK_INTERRUPTIBLE |
+ 					    TASK_UNINTERRUPTIBLE |
+ 					    TASK_STOPPED |
+-					    TASK_TRACED)) |
++					   TASK_TRACED |
++					   TASK_ONHOLD)) |
+ 			(tsk->exit_state & (EXIT_ZOMBIE |
+ 					    EXIT_DEAD));
+ 	const char **p = &task_state_array[0];
+@@ -161,8 +167,13 @@ static inline char * task_state(struct t
+ 	struct group_info *group_info;
+ 	int g;
+ 	struct fdtable *fdt = NULL;
++	pid_t pid, ptgid, tppid, tgid;
+ 
+ 	read_lock(&tasklist_lock);
++	tgid = vx_map_tgid(p->tgid);
++	pid = vx_map_pid(p->pid);
++	ptgid = vx_map_pid(p->group_leader->real_parent->tgid);
++	tppid = vx_map_pid(p->parent->pid);
+ 	buffer += sprintf(buffer,
+ 		"State:\t%s\n"
+ 		"SleepAVG:\t%lu%%\n"
+@@ -174,9 +185,8 @@ static inline char * task_state(struct t
+ 		"Gid:\t%d\t%d\t%d\t%d\n",
+ 		get_task_state(p),
+ 		(p->sleep_avg/1024)*100/(1020000000/1024),
+-	       	p->tgid,
+-		p->pid, pid_alive(p) ? p->group_leader->real_parent->tgid : 0,
+-		pid_alive(p) && p->ptrace ? p->parent->pid : 0,
++		tgid, pid, (pid > 1) ? ptgid : 0,
++		pid_alive(p) && p->ptrace ? tppid : 0,
+ 		p->uid, p->euid, p->suid, p->fsuid,
+ 		p->gid, p->egid, p->sgid, p->fsgid);
+ 	read_unlock(&tasklist_lock);
+@@ -296,6 +306,12 @@ static inline char *task_cap(struct task
+ int proc_pid_status(struct task_struct *task, char * buffer)
+ {
+ 	char * orig = buffer;
++#ifdef	CONFIG_VSERVER_LEGACY
++	struct vx_info *vxi;
++#endif
++#ifdef	CONFIG_VSERVER_LEGACYNET
++	struct nx_info *nxi;
++#endif
+ 	struct mm_struct *mm = get_task_mm(task);
+ 
+ 	buffer = task_name(task, buffer);
+@@ -308,6 +324,46 @@ int proc_pid_status(struct task_struct *
+ 	buffer = task_sig(task, buffer);
+ 	buffer = task_cap(task, buffer);
+ 	buffer = cpuset_task_status_allowed(task, buffer);
++
++	if (task_vx_flags(task, VXF_INFO_HIDE, 0))
++		goto skip;
++#ifdef	CONFIG_VSERVER_LEGACY
++	buffer += sprintf (buffer,"s_context: %d\n", vx_task_xid(task));
++	vxi = task_get_vx_info(task);
++	if (vxi) {
++		buffer += sprintf (buffer,"ctxflags: %08llx\n"
++			,(unsigned long long)vxi->vx_flags);
++		buffer += sprintf (buffer,"initpid: %d\n"
++			,vxi->vx_initpid);
++	} else {
++		buffer += sprintf (buffer,"ctxflags: none\n");
++		buffer += sprintf (buffer,"initpid: none\n");
++	}
++	put_vx_info(vxi);
++#else
++	buffer += sprintf (buffer,"VxID: %d\n", vx_task_xid(task));
++#endif
++#ifdef	CONFIG_VSERVER_LEGACYNET
++	nxi = task_get_nx_info(task);
++	if (nxi) {
++		int i;
++
++		buffer += sprintf (buffer,"ipv4root:");
++		for (i=0; i<nxi->nbipv4; i++){
++			buffer += sprintf (buffer," %08x/%08x"
++				,nxi->ipv4[i]
++				,nxi->mask[i]);
++		}
++		*buffer++ = '\n';
++		buffer += sprintf (buffer,"ipv4root_bcast: %08x\n"
++			,nxi->v4_bcast);
++	} else {
++		buffer += sprintf (buffer,"ipv4root: 0\n");
++		buffer += sprintf (buffer,"ipv4root_bcast: 0\n");
++	}
++	put_nx_info(nxi);
++#endif
++skip:
+ #if defined(CONFIG_ARCH_S390)
+ 	buffer = task_show_regs(task, buffer);
+ #endif
+@@ -322,7 +378,7 @@ static int do_task_stat(struct task_stru
+ 	sigset_t sigign, sigcatch;
+ 	char state;
+ 	int res;
+- 	pid_t ppid, pgid = -1, sid = -1;
++	pid_t pid, ppid, pgid = -1, sid = -1;
+ 	int num_threads = 0;
+ 	struct mm_struct *mm;
+ 	unsigned long long start_time;
+@@ -388,7 +444,11 @@ static int do_task_stat(struct task_stru
+ 		}
+ 		it_real_value = task->signal->it_real_value;
+ 	}
+-	ppid = pid_alive(task) ? task->group_leader->real_parent->tgid : 0;
++	pid = vx_info_map_pid(task->vx_info, pid_alive(task) ? task->pid : 0);
++	ppid = (!(pid > 1)) ? 0 : vx_info_map_tgid(task->vx_info,
++		task->group_leader->real_parent->tgid);
++	pgid = vx_info_map_pid(task->vx_info, pgid);
++
+ 	read_unlock(&tasklist_lock);
+ 
+ 	if (!whole || num_threads<2)
+@@ -412,10 +472,21 @@ static int do_task_stat(struct task_stru
+ 	/* convert nsec -> ticks */
+ 	start_time = nsec_to_clock_t(start_time);
+ 
++	/* fixup start time for virt uptime */
++	if (vx_flags(VXF_VIRT_UPTIME, 0)) {
++		unsigned long long bias =
++			current->vx_info->cvirt.bias_clock;
++
++		if (start_time > bias)
++			start_time -= bias;
++		else
++			start_time = 0;
++	}
++
+ 	res = sprintf(buffer,"%d (%s) %c %d %d %d %d %d %lu %lu \
+ %lu %lu %lu %lu %lu %ld %ld %ld %ld %d %ld %llu %lu %ld %lu %lu %lu %lu %lu \
+ %lu %lu %lu %lu %lu %lu %lu %lu %d %d %lu %lu\n",
+-		task->pid,
++		pid,
+ 		tcomm,
+ 		state,
+ 		ppid,
+Index: vserver-sources-2.0.1_2.6.15/fs/proc/base.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/proc/base.c
++++ vserver-sources-2.0.1_2.6.15/fs/proc/base.c
+@@ -71,6 +71,7 @@
+ #include <linux/cpuset.h>
+ #include <linux/audit.h>
+ #include <linux/poll.h>
++#include <linux/vs_network.h>
+ #include "internal.h"
+ 
+ /*
+@@ -120,6 +121,8 @@ enum pid_directory_inos {
+ 	PROC_TGID_ATTR_EXEC,
+ 	PROC_TGID_ATTR_FSCREATE,
+ #endif
++	PROC_TGID_VX_INFO,
++	PROC_TGID_IP_INFO,
+ #ifdef CONFIG_AUDITSYSCALL
+ 	PROC_TGID_LOGINUID,
+ #endif
+@@ -160,6 +163,8 @@ enum pid_directory_inos {
+ 	PROC_TID_ATTR_EXEC,
+ 	PROC_TID_ATTR_FSCREATE,
+ #endif
++	PROC_TID_VX_INFO,
++	PROC_TID_IP_INFO,
+ #ifdef CONFIG_AUDITSYSCALL
+ 	PROC_TID_LOGINUID,
+ #endif
+@@ -215,6 +220,8 @@ static struct pid_entry tgid_base_stuff[
+ #ifdef CONFIG_CPUSETS
+ 	E(PROC_TGID_CPUSET,    "cpuset",  S_IFREG|S_IRUGO),
+ #endif
++	E(PROC_TGID_VX_INFO,   "vinfo",   S_IFREG|S_IRUGO),
++	E(PROC_TGID_IP_INFO,   "ninfo",   S_IFREG|S_IRUGO),
+ 	E(PROC_TGID_OOM_SCORE, "oom_score",S_IFREG|S_IRUGO),
+ 	E(PROC_TGID_OOM_ADJUST,"oom_adj", S_IFREG|S_IRUGO|S_IWUSR),
+ #ifdef CONFIG_AUDITSYSCALL
+@@ -257,6 +264,8 @@ static struct pid_entry tid_base_stuff[]
+ #ifdef CONFIG_CPUSETS
+ 	E(PROC_TID_CPUSET,     "cpuset",  S_IFREG|S_IRUGO),
+ #endif
++	E(PROC_TID_VX_INFO,    "vinfo",   S_IFREG|S_IRUGO),
++	E(PROC_TID_IP_INFO,    "ninfo",   S_IFREG|S_IRUGO),
+ 	E(PROC_TID_OOM_SCORE,  "oom_score",S_IFREG|S_IRUGO),
+ 	E(PROC_TID_OOM_ADJUST, "oom_adj", S_IFREG|S_IRUGO|S_IWUSR),
+ #ifdef CONFIG_AUDITSYSCALL
+@@ -1220,7 +1229,7 @@ static int proc_pident_readdir(struct fi
+ 	struct inode *inode = dentry->d_inode;
+ 	struct pid_entry *p;
+ 	ino_t ino;
+-	int ret;
++	int ret, hide;
+ 
+ 	ret = -ENOENT;
+ 	if (!pid_alive(proc_task(inode)))
+@@ -1251,11 +1260,20 @@ static int proc_pident_readdir(struct fi
+ 			goto out;
+ 		}
+ 		p = ents + i;
++		hide = vx_flags(VXF_INFO_HIDE, 0);
+ 		while (p->name) {
++			if (hide) {
++				switch (p->type) {
++				case PROC_TGID_VX_INFO:
++				case PROC_TGID_IP_INFO:
++					goto skip;
++				}
++			}
+ 			if (filldir(dirent, p->name, p->len, filp->f_pos,
+ 				    fake_ino(pid, p->type), p->mode >> 12) < 0)
+ 				goto out;
+ 			filp->f_pos++;
++		skip:
+ 			p++;
+ 		}
+ 	}
+@@ -1329,6 +1347,7 @@ static struct inode *proc_pid_make_inode
+ 		inode->i_uid = task->euid;
+ 		inode->i_gid = task->egid;
+ 	}
++	inode->i_xid = vx_task_xid(task);
+ 	security_task_to_inode(task, inode);
+ 
+ out:
+@@ -1354,6 +1373,11 @@ static int pid_revalidate(struct dentry 
+ {
+ 	struct inode *inode = dentry->d_inode;
+ 	struct task_struct *task = proc_task(inode);
++
++	if (!vx_check(vx_task_xid(task), VX_IDENT))
++		goto out_drop;
++	/* discard wrong fakeinit */
++
+ 	if (pid_alive(task)) {
+ 		if (proc_type(inode) == PROC_TGID_INO || proc_type(inode) == PROC_TID_INO || task_dumpable(task)) {
+ 			inode->i_uid = task->euid;
+@@ -1365,6 +1389,7 @@ static int pid_revalidate(struct dentry 
+ 		security_task_to_inode(task, inode);
+ 		return 1;
+ 	}
++out_drop:
+ 	d_drop(dentry);
+ 	return 0;
+ }
+@@ -1599,6 +1624,9 @@ static struct file_operations proc_tgid_
+ static struct inode_operations proc_tgid_attr_inode_operations;
+ #endif
+ 
++extern int proc_pid_vx_info(struct task_struct *, char *);
++extern int proc_pid_nx_info(struct task_struct *, char *);
++
+ static int get_tid_list(int index, unsigned int *tids, struct inode *dir);
+ 
+ /* SMP-safe */
+@@ -1786,15 +1814,33 @@ static struct dentry *proc_pident_lookup
+ 			inode->i_fop = &proc_loginuid_operations;
+ 			break;
+ #endif
++		case PROC_TID_VX_INFO:
++		case PROC_TGID_VX_INFO:
++			if (task_vx_flags(task, VXF_INFO_HIDE, 0))
++				goto out_noent;
++			inode->i_fop = &proc_info_file_operations;
++			ei->op.proc_read = proc_pid_vx_info;
++			break;
++		case PROC_TID_IP_INFO:
++		case PROC_TGID_IP_INFO:
++			if (task_vx_flags(task, VXF_INFO_HIDE, 0))
++				goto out_noent;
++			inode->i_fop = &proc_info_file_operations;
++			ei->op.proc_read = proc_pid_nx_info;
++			break;
+ 		default:
+ 			printk("procfs: impossible type (%d)",p->type);
+-			iput(inode);
+-			return ERR_PTR(-EINVAL);
++			error = -EINVAL;
++			goto out_put;
+ 	}
+ 	dentry->d_op = &pid_dentry_operations;
+ 	d_add(dentry, inode);
+ 	return NULL;
+ 
++out_noent:
++	error=-ENOENT;
++out_put:
++	iput(inode);
+ out:
+ 	return ERR_PTR(error);
+ }
+@@ -1878,14 +1924,14 @@ static int proc_self_readlink(struct den
+ 			      int buflen)
+ {
+ 	char tmp[30];
+-	sprintf(tmp, "%d", current->tgid);
++	sprintf(tmp, "%d", vx_map_tgid(current->tgid));
+ 	return vfs_readlink(dentry,buffer,buflen,tmp);
+ }
+ 
+ static void *proc_self_follow_link(struct dentry *dentry, struct nameidata *nd)
+ {
+ 	char tmp[30];
+-	sprintf(tmp, "%d", current->tgid);
++	sprintf(tmp, "%d", vx_map_tgid(current->tgid));
+ 	return ERR_PTR(vfs_follow_link(nd,tmp));
+ }	
+ 
+@@ -1948,6 +1994,20 @@ void proc_pid_flush(struct dentry *proc_
+ 	}
+ }
+ 
++#define VXF_FAKE_INIT	(VXF_INFO_INIT|VXF_STATE_INIT)
++
++static inline int proc_pid_visible(struct task_struct *task, int pid)
++{
++	if ((pid == 1) &&
++		!vx_flags(VXF_FAKE_INIT, VXF_FAKE_INIT))
++		goto visible;
++	if (vx_check(vx_task_xid(task), VX_WATCH|VX_IDENT))
++		goto visible;
++	return 0;
++visible:
++	return 1;
++}
++
+ /* SMP-safe */
+ struct dentry *proc_pid_lookup(struct inode *dir, struct dentry * dentry, struct nameidata *nd)
+ {
+@@ -1984,13 +2044,14 @@ struct dentry *proc_pid_lookup(struct in
+ 	if (!task)
+ 		goto out;
+ 
+-	inode = proc_pid_make_inode(dir->i_sb, task, PROC_TGID_INO);
++	/* check for context visibility */
++	if (!proc_pid_visible(task, tgid))
++		goto out_drop_task;
+ 
++	inode = proc_pid_make_inode(dir->i_sb, task, PROC_TGID_INO);
++	if (!inode)
++		goto out_drop_task;
+ 
+-	if (!inode) {
+-		put_task_struct(task);
+-		goto out;
+-	}
+ 	inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO;
+ 	inode->i_op = &proc_tgid_base_inode_operations;
+ 	inode->i_fop = &proc_tgid_base_operations;
+@@ -2019,6 +2080,8 @@ struct dentry *proc_pid_lookup(struct in
+ 		goto out;
+ 	}
+ 	return NULL;
++out_drop_task:
++	put_task_struct(task);
+ out:
+ 	return ERR_PTR(-ENOENT);
+ }
+@@ -2034,6 +2097,8 @@ static struct dentry *proc_task_lookup(s
+ 	tid = name_to_int(dentry);
+ 	if (tid == ~0U)
+ 		goto out;
++	if (vx_current_initpid(tid))
++		goto out;
+ 
+ 	read_lock(&tasklist_lock);
+ 	task = find_task_by_pid(tid);
+@@ -2045,11 +2110,14 @@ static struct dentry *proc_task_lookup(s
+ 	if (leader->tgid != task->tgid)
+ 		goto out_drop_task;
+ 
+-	inode = proc_pid_make_inode(dir->i_sb, task, PROC_TID_INO);
+-
++	/* check for context visibility */
++	if (!proc_pid_visible(task, tid))
++		goto out_drop_task;
+ 
++	inode = proc_pid_make_inode(dir->i_sb, task, PROC_TID_INO);
+ 	if (!inode)
+ 		goto out_drop_task;
++
+ 	inode->i_mode = S_IFDIR|S_IRUGO|S_IXUGO;
+ 	inode->i_op = &proc_tid_base_inode_operations;
+ 	inode->i_fop = &proc_tid_base_operations;
+@@ -2089,7 +2157,7 @@ static int get_tgid_list(int index, unsi
+ 	read_lock(&tasklist_lock);
+ 	p = NULL;
+ 	if (version) {
+-		p = find_task_by_pid(version);
++		p = find_task_by_real_pid(version);
+ 		if (p && !thread_group_leader(p))
+ 			p = NULL;
+ 	}
+@@ -2101,11 +2169,15 @@ static int get_tgid_list(int index, unsi
+ 
+ 	for ( ; p != &init_task; p = next_task(p)) {
+ 		int tgid = p->pid;
++
+ 		if (!pid_alive(p))
+ 			continue;
++		/* check for context visibility */
++		if (!proc_pid_visible(p, tgid))
++			continue;
+ 		if (--index >= 0)
+ 			continue;
+-		tgids[nr_tgids] = tgid;
++		tgids[nr_tgids] = vx_map_tgid(tgid);
+ 		nr_tgids++;
+ 		if (nr_tgids >= PROC_MAXPIDS)
+ 			break;
+@@ -2135,10 +2207,13 @@ static int get_tid_list(int index, unsig
+ 	if (pid_alive(task)) do {
+ 		int tid = task->pid;
+ 
++		/* check for context visibility */
++		if (!proc_pid_visible(task, tid))
++			continue;
+ 		if (--index >= 0)
+ 			continue;
+ 		if (tids != NULL)
+-			tids[nr_tids] = tid;
++			tids[nr_tids] = vx_map_pid(tid);
+ 		nr_tids++;
+ 		if (nr_tids >= PROC_MAXPIDS)
+ 			break;
+@@ -2214,11 +2289,14 @@ static int proc_task_readdir(struct file
+ 	unsigned int nr_tids, i;
+ 	struct dentry *dentry = filp->f_dentry;
+ 	struct inode *inode = dentry->d_inode;
++	struct task_struct *task = proc_task(inode);
+ 	int retval = -ENOENT;
+ 	ino_t ino;
+ 	unsigned long pos = filp->f_pos;  /* avoiding "long long" filp->f_pos */
+ 
+-	if (!pid_alive(proc_task(inode)))
++	if (!vx_check(vx_task_xid(task), VX_WATCH|VX_IDENT))
++		goto out;
++	if (!pid_alive(task))
+ 		goto out;
+ 	retval = 0;
+ 
+Index: vserver-sources-2.0.1_2.6.15/fs/proc/generic.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/proc/generic.c
++++ vserver-sources-2.0.1_2.6.15/fs/proc/generic.c
+@@ -19,6 +19,7 @@
+ #include <linux/idr.h>
+ #include <linux/namei.h>
+ #include <linux/bitops.h>
++#include <linux/vserver/inode.h>
+ #include <asm/uaccess.h>
+ 
+ static ssize_t proc_file_read(struct file *file, char __user *buf,
+@@ -383,11 +384,15 @@ struct dentry *proc_lookup(struct inode 
+ 		for (de = de->subdir; de ; de = de->next) {
+ 			if (de->namelen != dentry->d_name.len)
+ 				continue;
++			if (!vx_hide_check(0, de->vx_flags))
++				continue;
+ 			if (!memcmp(dentry->d_name.name, de->name, de->namelen)) {
+ 				unsigned int ino = de->low_ino;
+ 
+ 				error = -EINVAL;
+ 				inode = proc_get_inode(dir->i_sb, ino, de);
++				/* generic proc entries belong to the host */
++				inode->i_xid = 0;
+ 				break;
+ 			}
+ 		}
+@@ -459,9 +464,12 @@ int proc_readdir(struct file * filp,
+ 			}
+ 
+ 			do {
++				if (!vx_hide_check(0, de->vx_flags))
++					goto skip;
+ 				if (filldir(dirent, de->name, de->namelen, filp->f_pos,
+ 					    de->low_ino, de->mode >> 12) < 0)
+ 					goto out;
++			skip:
+ 				filp->f_pos++;
+ 				de = de->next;
+ 			} while (de);
+@@ -579,6 +587,7 @@ static struct proc_dir_entry *proc_creat
+ 	ent->namelen = len;
+ 	ent->mode = mode;
+ 	ent->nlink = nlink;
++	ent->vx_flags = IATTR_PROC_DEFAULT;
+  out:
+ 	return ent;
+ }
+@@ -599,7 +608,8 @@ struct proc_dir_entry *proc_symlink(cons
+ 				kfree(ent->data);
+ 				kfree(ent);
+ 				ent = NULL;
+-			}
++			} else
++				ent->vx_flags = IATTR_PROC_SYMLINK;
+ 		} else {
+ 			kfree(ent);
+ 			ent = NULL;
+Index: vserver-sources-2.0.1_2.6.15/fs/proc/inode.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/proc/inode.c
++++ vserver-sources-2.0.1_2.6.15/fs/proc/inode.c
+@@ -170,6 +170,8 @@ struct inode *proc_get_inode(struct supe
+ 			inode->i_uid = de->uid;
+ 			inode->i_gid = de->gid;
+ 		}
++		if (de->vx_flags)
++			PROC_I(inode)->vx_flags = de->vx_flags;
+ 		if (de->size)
+ 			inode->i_size = de->size;
+ 		if (de->nlink)
+Index: vserver-sources-2.0.1_2.6.15/fs/proc/proc_misc.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/proc/proc_misc.c
++++ vserver-sources-2.0.1_2.6.15/fs/proc/proc_misc.c
+@@ -52,6 +52,8 @@
+ #include <asm/div64.h>
+ #include "internal.h"
+ 
++#include <linux/vs_cvirt.h>
++
+ #define LOAD_INT(x) ((x) >> FSHIFT)
+ #define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
+ /*
+@@ -82,17 +84,32 @@ static int proc_calc_metrics(char *page,
+ static int loadavg_read_proc(char *page, char **start, off_t off,
+ 				 int count, int *eof, void *data)
+ {
++	unsigned int running, threads;
+ 	int a, b, c;
+ 	int len;
+ 
+-	a = avenrun[0] + (FIXED_1/200);
+-	b = avenrun[1] + (FIXED_1/200);
+-	c = avenrun[2] + (FIXED_1/200);
+-	len = sprintf(page,"%d.%02d %d.%02d %d.%02d %ld/%d %d\n",
++	if (vx_flags(VXF_VIRT_LOAD, 0)) {
++		struct vx_info *vxi = current->vx_info;
++
++		a = vxi->cvirt.load[0] + (FIXED_1/200);
++		b = vxi->cvirt.load[1] + (FIXED_1/200);
++		c = vxi->cvirt.load[2] + (FIXED_1/200);
++
++		running = atomic_read(&vxi->cvirt.nr_running);
++		threads = atomic_read(&vxi->cvirt.nr_threads);
++	} else {
++		a = avenrun[0] + (FIXED_1/200);
++		b = avenrun[1] + (FIXED_1/200);
++		c = avenrun[2] + (FIXED_1/200);
++
++		running = nr_running();
++		threads = nr_threads;
++	}
++	len = sprintf(page,"%d.%02d %d.%02d %d.%02d %d/%d %d\n",
+ 		LOAD_INT(a), LOAD_FRAC(a),
+ 		LOAD_INT(b), LOAD_FRAC(b),
+ 		LOAD_INT(c), LOAD_FRAC(c),
+-		nr_running(), nr_threads, last_pid);
++		running, threads, last_pid);
+ 	return proc_calc_metrics(page, start, off, count, eof, len);
+ }
+ 
+@@ -106,6 +123,9 @@ static int uptime_read_proc(char *page, 
+ 
+ 	do_posix_clock_monotonic_gettime(&uptime);
+ 	cputime_to_timespec(idletime, &idle);
++	if (vx_flags(VXF_VIRT_UPTIME, 0))
++		vx_vsi_uptime(&uptime, &idle);
++
+ 	len = sprintf(page,"%lu.%02lu %lu.%02lu\n",
+ 			(unsigned long) uptime.tv_sec,
+ 			(uptime.tv_nsec / (NSEC_PER_SEC / 100)),
+@@ -238,8 +258,9 @@ static int version_read_proc(char *page,
+ {
+ 	int len;
+ 
+-	strcpy(page, linux_banner);
+-	len = strlen(page);
++	len = sprintf(page, vx_linux_banner,
++		vx_new_uts(release),
++		vx_new_uts(version));
+ 	return proc_calc_metrics(page, start, off, count, eof, len);
+ }
+ 
+Index: vserver-sources-2.0.1_2.6.15/fs/proc/root.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/proc/root.c
++++ vserver-sources-2.0.1_2.6.15/fs/proc/root.c
+@@ -23,6 +23,9 @@ struct proc_dir_entry *proc_net, *proc_n
+ #ifdef CONFIG_SYSCTL
+ struct proc_dir_entry *proc_sys_root;
+ #endif
++struct proc_dir_entry *proc_virtual;
++
++extern void proc_vx_init(void);
+ 
+ static struct super_block *proc_get_sb(struct file_system_type *fs_type,
+ 	int flags, const char *dev_name, void *data)
+@@ -77,6 +80,7 @@ void __init proc_root_init(void)
+ 	proc_device_tree_init();
+ #endif
+ 	proc_bus = proc_mkdir("bus", NULL);
++	proc_vx_init();
+ }
+ 
+ static struct dentry *proc_root_lookup(struct inode * dir, struct dentry * dentry, struct nameidata *nd)
+Index: vserver-sources-2.0.1_2.6.15/fs/quota.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/quota.c
++++ vserver-sources-2.0.1_2.6.15/fs/quota.c
+@@ -16,6 +16,9 @@
+ #include <linux/syscalls.h>
+ #include <linux/buffer_head.h>
+ #include <linux/quotaops.h>
++#include <linux/major.h>
++#include <linux/blkdev.h>
++#include <linux/vserver/debug.h>
+ 
+ /* Check validity of generic quotactl commands */
+ static int generic_quotactl_valid(struct super_block *sb, int type, int cmd, qid_t id)
+@@ -80,11 +83,11 @@ static int generic_quotactl_valid(struct
+ 	if (cmd == Q_GETQUOTA) {
+ 		if (((type == USRQUOTA && current->euid != id) ||
+ 		     (type == GRPQUOTA && !in_egroup_p(id))) &&
+-		    !capable(CAP_SYS_ADMIN))
++		    !capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_QUOTA_CTL))
+ 			return -EPERM;
+ 	}
+ 	else if (cmd != Q_GETFMT && cmd != Q_SYNC && cmd != Q_GETINFO)
+-		if (!capable(CAP_SYS_ADMIN))
++		if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_QUOTA_CTL))
+ 			return -EPERM;
+ 
+ 	return 0;
+@@ -131,10 +134,10 @@ static int xqm_quotactl_valid(struct sup
+ 	if (cmd == Q_XGETQUOTA) {
+ 		if (((type == XQM_USRQUOTA && current->euid != id) ||
+ 		     (type == XQM_GRPQUOTA && !in_egroup_p(id))) &&
+-		     !capable(CAP_SYS_ADMIN))
++		     !capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_QUOTA_CTL))
+ 			return -EPERM;
+ 	} else if (cmd != Q_XGETQSTAT && cmd != Q_XQUOTASYNC) {
+-		if (!capable(CAP_SYS_ADMIN))
++		if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_QUOTA_CTL))
+ 			return -EPERM;
+ 	}
+ 
+@@ -336,6 +339,43 @@ static int do_quotactl(struct super_bloc
+ 	return 0;
+ }
+ 
++#if defined(CONFIG_BLK_DEV_VROOT) || defined(CONFIG_BLK_DEV_VROOT_MODULE)
++
++#include <linux/vroot.h>
++#include <linux/kallsyms.h>
++
++static vroot_grb_func *vroot_get_real_bdev = NULL;
++
++static spinlock_t vroot_grb_lock = SPIN_LOCK_UNLOCKED;
++
++int register_vroot_grb(vroot_grb_func *func) {
++	int ret = -EBUSY;
++
++	spin_lock(&vroot_grb_lock);
++	if (!vroot_get_real_bdev) {
++		vroot_get_real_bdev = func;
++		ret = 0;
++	}
++	spin_unlock(&vroot_grb_lock);
++	return ret;
++}
++EXPORT_SYMBOL(register_vroot_grb);
++
++int unregister_vroot_grb(vroot_grb_func *func) {
++	int ret = -EINVAL;
++
++	spin_lock(&vroot_grb_lock);
++	if (vroot_get_real_bdev) {
++		vroot_get_real_bdev = NULL;
++		ret = 0;
++	}
++	spin_unlock(&vroot_grb_lock);
++	return ret;
++}
++EXPORT_SYMBOL(unregister_vroot_grb);
++
++#endif
++
+ /*
+  * This is the system call interface. This communicates with
+  * the user-level programs. Currently this only supports diskquota
+@@ -361,6 +401,23 @@ asmlinkage long sys_quotactl(unsigned in
+ 		putname(tmp);
+ 		if (IS_ERR(bdev))
+ 			return PTR_ERR(bdev);
++#if defined(CONFIG_BLK_DEV_VROOT) || defined(CONFIG_BLK_DEV_VROOT_MODULE)
++		if (bdev && bdev->bd_inode &&
++			imajor(bdev->bd_inode) == VROOT_MAJOR) {
++			struct block_device *bdnew = (void *)-EINVAL;
++
++			if (vroot_get_real_bdev)
++				bdnew = vroot_get_real_bdev(bdev);
++			else
++				vxdprintk(VXD_CBIT(misc, 0),
++					"vroot_get_real_bdev not set");
++
++			bdput(bdev);
++			if (IS_ERR(bdnew))
++				return PTR_ERR(bdnew);
++			bdev = bdnew;
++		}
++#endif
+ 		sb = get_super(bdev);
+ 		bdput(bdev);
+ 		if (!sb)
+Index: vserver-sources-2.0.1_2.6.15/fs/reiserfs/bitmap.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/reiserfs/bitmap.c
++++ vserver-sources-2.0.1_2.6.15/fs/reiserfs/bitmap.c
+@@ -13,6 +13,7 @@
+ #include <linux/reiserfs_fs_sb.h>
+ #include <linux/reiserfs_fs_i.h>
+ #include <linux/quotaops.h>
++#include <linux/vs_dlimit.h>
+ 
+ #define PREALLOCATION_SIZE 9
+ 
+@@ -411,8 +412,10 @@ static void _reiserfs_free_block(struct 
+ 	set_sb_free_blocks(rs, sb_free_blocks(rs) + 1);
+ 
+ 	journal_mark_dirty(th, s, sbh);
+-	if (for_unformatted)
++	if (for_unformatted) {
++		DLIMIT_FREE_BLOCK(inode, 1);
+ 		DQUOT_FREE_BLOCK_NODIRTY(inode, 1);
++	}
+ }
+ 
+ void reiserfs_free_block(struct reiserfs_transaction_handle *th,
+@@ -1021,6 +1024,7 @@ static inline int blocknrs_and_prealloc_
+ 	int passno = 0;
+ 	int nr_allocated = 0;
+ 	int bigalloc = 0;
++	int blocks;
+ 
+ 	determine_prealloc_size(hint);
+ 	if (!hint->formatted_node) {
+@@ -1030,22 +1034,34 @@ static inline int blocknrs_and_prealloc_
+ 			       "reiserquota: allocating %d blocks id=%u",
+ 			       amount_needed, hint->inode->i_uid);
+ #endif
+-		quota_ret =
+-		    DQUOT_ALLOC_BLOCK_NODIRTY(hint->inode, amount_needed);
+-		if (quota_ret)	/* Quota exceeded? */
++		quota_ret = DQUOT_ALLOC_BLOCK_NODIRTY(hint->inode,
++			amount_needed);
++		if (quota_ret)
+ 			return QUOTA_EXCEEDED;
++		if (DLIMIT_ALLOC_BLOCK(hint->inode, amount_needed)) {
++			DQUOT_FREE_BLOCK_NODIRTY(hint->inode,
++				amount_needed);
++			return NO_DISK_SPACE;
++		}
++
+ 		if (hint->preallocate && hint->prealloc_size) {
+ #ifdef REISERQUOTA_DEBUG
+ 			reiserfs_debug(s, REISERFS_DEBUG_CODE,
+ 				       "reiserquota: allocating (prealloc) %d blocks id=%u",
+ 				       hint->prealloc_size, hint->inode->i_uid);
+ #endif
+-			quota_ret =
+-			    DQUOT_PREALLOC_BLOCK_NODIRTY(hint->inode,
+-							 hint->prealloc_size);
++			quota_ret = DQUOT_PREALLOC_BLOCK_NODIRTY(hint->inode,
++				hint->prealloc_size);
++			if (!quota_ret &&
++				DLIMIT_ALLOC_BLOCK(hint->inode, hint->prealloc_size)) {
++				DQUOT_FREE_BLOCK_NODIRTY(hint->inode,
++					hint->prealloc_size);
++				quota_ret = 1;
++			}
+ 			if (quota_ret)
+ 				hint->preallocate = hint->prealloc_size = 0;
+ 		}
++
+ 		/* for unformatted nodes, force large allocations */
+ 		bigalloc = amount_needed;
+ 	}
+@@ -1093,7 +1109,10 @@ static inline int blocknrs_and_prealloc_
+ 					       nr_allocated,
+ 					       hint->inode->i_uid);
+ #endif
+-				DQUOT_FREE_BLOCK_NODIRTY(hint->inode, amount_needed + hint->prealloc_size - nr_allocated);	/* Free not allocated blocks */
++				/* Free not allocated blocks */
++				blocks = amount_needed + hint->prealloc_size - nr_allocated;
++				DLIMIT_FREE_BLOCK(hint->inode, blocks);
++				DQUOT_FREE_BLOCK_NODIRTY(hint->inode, blocks);
+ 			}
+ 			while (nr_allocated--)
+ 				reiserfs_free_block(hint->th, hint->inode,
+@@ -1125,10 +1144,10 @@ static inline int blocknrs_and_prealloc_
+ 			       REISERFS_I(hint->inode)->i_prealloc_count,
+ 			       hint->inode->i_uid);
+ #endif
+-		DQUOT_FREE_BLOCK_NODIRTY(hint->inode, amount_needed +
+-					 hint->prealloc_size - nr_allocated -
+-					 REISERFS_I(hint->inode)->
+-					 i_prealloc_count);
++		blocks = amount_needed + hint->prealloc_size - nr_allocated -
++			REISERFS_I(hint->inode)->i_prealloc_count;
++		DLIMIT_FREE_BLOCK(hint->inode, blocks);
++		DQUOT_FREE_BLOCK_NODIRTY(hint->inode, blocks);
+ 	}
+ 
+ 	return CARRY_ON;
+Index: vserver-sources-2.0.1_2.6.15/fs/reiserfs/file.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/reiserfs/file.c
++++ vserver-sources-2.0.1_2.6.15/fs/reiserfs/file.c
+@@ -1567,4 +1567,5 @@ struct inode_operations reiserfs_file_in
+ 	.listxattr = reiserfs_listxattr,
+ 	.removexattr = reiserfs_removexattr,
+ 	.permission = reiserfs_permission,
++	.sync_flags = reiserfs_sync_flags,
+ };
+Index: vserver-sources-2.0.1_2.6.15/fs/reiserfs/inode.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/reiserfs/inode.c
++++ vserver-sources-2.0.1_2.6.15/fs/reiserfs/inode.c
+@@ -17,6 +17,8 @@
+ #include <linux/mpage.h>
+ #include <linux/writeback.h>
+ #include <linux/quotaops.h>
++#include <linux/vs_dlimit.h>
++#include <linux/vserver/xid.h>
+ 
+ extern int reiserfs_default_io_size;	/* default io size devuned in super.c */
+ 
+@@ -57,6 +59,7 @@ void reiserfs_delete_inode(struct inode 
+ 		 * stat data deletion */
+ 		if (!err) 
+ 			DQUOT_FREE_INODE(inode);
++		DLIMIT_FREE_INODE(inode);
+ 
+ 		if (journal_end(&th, inode->i_sb, jbegin_count)) {
+ 			up(&inode->i_sem);
+@@ -1130,6 +1133,8 @@ static void init_inode(struct inode *ino
+ 	struct buffer_head *bh;
+ 	struct item_head *ih;
+ 	__u32 rdev;
++	uid_t uid;
++	gid_t gid;
+ 	//int version = ITEM_VERSION_1;
+ 
+ 	bh = PATH_PLAST_BUFFER(path);
+@@ -1153,12 +1158,13 @@ static void init_inode(struct inode *ino
+ 		    (struct stat_data_v1 *)B_I_PITEM(bh, ih);
+ 		unsigned long blocks;
+ 
++		uid = sd_v1_uid(sd);
++		gid = sd_v1_gid(sd);
++
+ 		set_inode_item_key_version(inode, KEY_FORMAT_3_5);
+ 		set_inode_sd_version(inode, STAT_DATA_V1);
+ 		inode->i_mode = sd_v1_mode(sd);
+ 		inode->i_nlink = sd_v1_nlink(sd);
+-		inode->i_uid = sd_v1_uid(sd);
+-		inode->i_gid = sd_v1_gid(sd);
+ 		inode->i_size = sd_v1_size(sd);
+ 		inode->i_atime.tv_sec = sd_v1_atime(sd);
+ 		inode->i_mtime.tv_sec = sd_v1_mtime(sd);
+@@ -1200,11 +1206,12 @@ static void init_inode(struct inode *ino
+ 		// (directories and symlinks)
+ 		struct stat_data *sd = (struct stat_data *)B_I_PITEM(bh, ih);
+ 
++		uid    = sd_v2_uid(sd);
++		gid    = sd_v2_gid(sd);
++
+ 		inode->i_mode = sd_v2_mode(sd);
+ 		inode->i_nlink = sd_v2_nlink(sd);
+-		inode->i_uid = sd_v2_uid(sd);
+ 		inode->i_size = sd_v2_size(sd);
+-		inode->i_gid = sd_v2_gid(sd);
+ 		inode->i_mtime.tv_sec = sd_v2_mtime(sd);
+ 		inode->i_atime.tv_sec = sd_v2_atime(sd);
+ 		inode->i_ctime.tv_sec = sd_v2_ctime(sd);
+@@ -1234,6 +1241,10 @@ static void init_inode(struct inode *ino
+ 		sd_attrs_to_i_attrs(sd_v2_attrs(sd), inode);
+ 	}
+ 
++	inode->i_uid = INOXID_UID(XID_TAG(inode), uid, gid);
++	inode->i_gid = INOXID_GID(XID_TAG(inode), uid, gid);
++	inode->i_xid = INOXID_XID(XID_TAG(inode), uid, gid, 0);
++
+ 	pathrelse(path);
+ 	if (S_ISREG(inode->i_mode)) {
+ 		inode->i_op = &reiserfs_file_inode_operations;
+@@ -1256,13 +1267,15 @@ static void init_inode(struct inode *ino
+ static void inode2sd(void *sd, struct inode *inode, loff_t size)
+ {
+ 	struct stat_data *sd_v2 = (struct stat_data *)sd;
++	uid_t uid = XIDINO_UID(XID_TAG(inode), inode->i_uid, inode->i_xid);
++	gid_t gid = XIDINO_GID(XID_TAG(inode), inode->i_gid, inode->i_xid);
+ 	__u16 flags;
+ 
++	set_sd_v2_uid(sd_v2, uid);
++	set_sd_v2_gid(sd_v2, gid);
+ 	set_sd_v2_mode(sd_v2, inode->i_mode);
+ 	set_sd_v2_nlink(sd_v2, inode->i_nlink);
+-	set_sd_v2_uid(sd_v2, inode->i_uid);
+ 	set_sd_v2_size(sd_v2, size);
+-	set_sd_v2_gid(sd_v2, inode->i_gid);
+ 	set_sd_v2_mtime(sd_v2, inode->i_mtime.tv_sec);
+ 	set_sd_v2_atime(sd_v2, inode->i_atime.tv_sec);
+ 	set_sd_v2_ctime(sd_v2, inode->i_ctime.tv_sec);
+@@ -1793,6 +1806,10 @@ int reiserfs_new_inode(struct reiserfs_t
+ 
+ 	BUG_ON(!th->t_trans_id);
+ 
++	if (DLIMIT_ALLOC_INODE(inode)) {
++		err = -ENOSPC;
++		goto out_bad_dlimit;
++	}
+ 	if (DQUOT_ALLOC_INODE(inode)) {
+ 		err = -EDQUOT;
+ 		goto out_end_trans;
+@@ -1978,6 +1995,9 @@ int reiserfs_new_inode(struct reiserfs_t
+ 	DQUOT_FREE_INODE(inode);
+ 
+       out_end_trans:
++	DLIMIT_FREE_INODE(inode);
++
++      out_bad_dlimit:
+ 	journal_end(th, th->t_super, th->t_blocks_allocated);
+ 	/* Drop can be outside and it needs more credits so it's better to have it outside */
+ 	DQUOT_DROP(inode);
+@@ -2698,6 +2718,14 @@ void sd_attrs_to_i_attrs(__u16 sd_attrs,
+ 			inode->i_flags |= S_IMMUTABLE;
+ 		else
+ 			inode->i_flags &= ~S_IMMUTABLE;
++		if (sd_attrs & REISERFS_IUNLINK_FL)
++			inode->i_flags |= S_IUNLINK;
++		else
++			inode->i_flags &= ~S_IUNLINK;
++		if (sd_attrs & REISERFS_BARRIER_FL)
++			inode->i_flags |= S_BARRIER;
++		else
++			inode->i_flags &= ~S_BARRIER;
+ 		if (sd_attrs & REISERFS_APPEND_FL)
+ 			inode->i_flags |= S_APPEND;
+ 		else
+@@ -2720,6 +2748,14 @@ void i_attrs_to_sd_attrs(struct inode *i
+ 			*sd_attrs |= REISERFS_IMMUTABLE_FL;
+ 		else
+ 			*sd_attrs &= ~REISERFS_IMMUTABLE_FL;
++		if (inode->i_flags & S_IUNLINK)
++			*sd_attrs |= REISERFS_IUNLINK_FL;
++		else
++			*sd_attrs &= ~REISERFS_IUNLINK_FL;
++		if (inode->i_flags & S_BARRIER)
++			*sd_attrs |= REISERFS_BARRIER_FL;
++		else
++			*sd_attrs &= ~REISERFS_BARRIER_FL;
+ 		if (inode->i_flags & S_SYNC)
+ 			*sd_attrs |= REISERFS_SYNC_FL;
+ 		else
+@@ -2895,6 +2931,24 @@ static ssize_t reiserfs_direct_IO(int rw
+ 				  reiserfs_get_blocks_direct_io, NULL);
+ }
+ 
++int reiserfs_sync_flags(struct inode *inode)
++{
++	u16 oldflags, newflags;
++
++	reiserfs_write_lock(inode->i_sb);
++	oldflags = REISERFS_I(inode)->i_flags;
++	newflags = oldflags;
++	i_attrs_to_sd_attrs(inode, &newflags);
++
++	if (oldflags ^ newflags) {
++		REISERFS_I(inode)->i_flags = newflags;
++		inode->i_ctime = CURRENT_TIME;
++		mark_inode_dirty(inode);
++	}
++	reiserfs_write_unlock(inode->i_sb);
++	return 0;
++}
++
+ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr)
+ {
+ 	struct inode *inode = dentry->d_inode;
+@@ -2939,9 +2993,11 @@ int reiserfs_setattr(struct dentry *dent
+ 	}
+ 
+ 	error = inode_change_ok(inode, attr);
++
+ 	if (!error) {
+ 		if ((ia_valid & ATTR_UID && attr->ia_uid != inode->i_uid) ||
+-		    (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid)) {
++		    (ia_valid & ATTR_GID && attr->ia_gid != inode->i_gid) ||
++		    (ia_valid & ATTR_XID && attr->ia_xid != inode->i_xid)) {
+ 			error = reiserfs_chown_xattrs(inode, attr);
+ 
+ 			if (!error) {
+@@ -2971,6 +3027,9 @@ int reiserfs_setattr(struct dentry *dent
+ 					inode->i_uid = attr->ia_uid;
+ 				if (attr->ia_valid & ATTR_GID)
+ 					inode->i_gid = attr->ia_gid;
++				if ((attr->ia_valid & ATTR_XID) &&
++					IS_TAGXID(inode))
++					inode->i_xid = attr->ia_xid;
+ 				mark_inode_dirty(inode);
+ 				error =
+ 				    journal_end(&th, inode->i_sb, jbegin_count);
+Index: vserver-sources-2.0.1_2.6.15/fs/reiserfs/ioctl.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/reiserfs/ioctl.c
++++ vserver-sources-2.0.1_2.6.15/fs/reiserfs/ioctl.c
+@@ -22,7 +22,7 @@ static int reiserfs_unpack(struct inode 
+ int reiserfs_ioctl(struct inode *inode, struct file *filp, unsigned int cmd,
+ 		   unsigned long arg)
+ {
+-	unsigned int flags;
++	unsigned int flags, oldflags;
+ 
+ 	switch (cmd) {
+ 	case REISERFS_IOC_UNPACK:
+@@ -41,6 +41,7 @@ int reiserfs_ioctl(struct inode *inode, 
+ 
+ 		flags = REISERFS_I(inode)->i_attrs;
+ 		i_attrs_to_sd_attrs(inode, (__u16 *) & flags);
++		flags &= REISERFS_FL_USER_VISIBLE;
+ 		return put_user(flags, (int __user *)arg);
+ 	case REISERFS_IOC_SETFLAGS:{
+ 			if (!reiserfs_attrs(inode->i_sb))
+@@ -56,10 +57,12 @@ int reiserfs_ioctl(struct inode *inode, 
+ 			if (get_user(flags, (int __user *)arg))
+ 				return -EFAULT;
+ 
+-			if (((flags ^ REISERFS_I(inode)->
+-			      i_attrs) & (REISERFS_IMMUTABLE_FL |
+-					  REISERFS_APPEND_FL))
+-			    && !capable(CAP_LINUX_IMMUTABLE))
++			oldflags = REISERFS_I(inode) -> i_attrs;
++			if (((oldflags & REISERFS_IMMUTABLE_FL) ||
++				((flags ^ oldflags) &
++				(REISERFS_IMMUTABLE_FL | REISERFS_IUNLINK_FL |
++				 REISERFS_APPEND_FL))) &&
++				!capable(CAP_LINUX_IMMUTABLE))
+ 				return -EPERM;
+ 
+ 			if ((flags & REISERFS_NOTAIL_FL) &&
+@@ -70,6 +73,9 @@ int reiserfs_ioctl(struct inode *inode, 
+ 				if (result)
+ 					return result;
+ 			}
++
++			flags = flags & REISERFS_FL_USER_MODIFIABLE;
++			flags |= oldflags & ~REISERFS_FL_USER_MODIFIABLE;
+ 			sd_attrs_to_i_attrs(flags, inode);
+ 			REISERFS_I(inode)->i_attrs = flags;
+ 			inode->i_ctime = CURRENT_TIME_SEC;
+Index: vserver-sources-2.0.1_2.6.15/fs/reiserfs/namei.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/reiserfs/namei.c
++++ vserver-sources-2.0.1_2.6.15/fs/reiserfs/namei.c
+@@ -19,6 +19,7 @@
+ #include <linux/reiserfs_xattr.h>
+ #include <linux/smp_lock.h>
+ #include <linux/quotaops.h>
++#include <linux/vserver/xid.h>
+ 
+ #define INC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) { i->i_nlink++; if (i->i_nlink >= REISERFS_LINK_MAX) i->i_nlink=1; }
+ #define DEC_DIR_INODE_NLINK(i) if (i->i_nlink != 1) i->i_nlink--;
+@@ -365,6 +366,7 @@ static struct dentry *reiserfs_lookup(st
+ 			reiserfs_write_unlock(dir->i_sb);
+ 			return ERR_PTR(-EACCES);
+ 		}
++		vx_propagate_xid(nd, inode);
+ 
+ 		/* Propogate the priv_object flag so we know we're in the priv tree */
+ 		if (is_reiserfs_priv_object(dir))
+@@ -604,6 +606,7 @@ static int new_inode_init(struct inode *
+ 	} else {
+ 		inode->i_gid = current->fsgid;
+ 	}
++	inode->i_xid = vx_current_fsxid(inode->i_sb);
+ 	DQUOT_INIT(inode);
+ 	return 0;
+ }
+@@ -1550,6 +1553,7 @@ struct inode_operations reiserfs_dir_ino
+ 	.listxattr = reiserfs_listxattr,
+ 	.removexattr = reiserfs_removexattr,
+ 	.permission = reiserfs_permission,
++	.sync_flags = reiserfs_sync_flags,
+ };
+ 
+ /*
+@@ -1566,6 +1570,7 @@ struct inode_operations reiserfs_symlink
+ 	.listxattr = reiserfs_listxattr,
+ 	.removexattr = reiserfs_removexattr,
+ 	.permission = reiserfs_permission,
++	.sync_flags = reiserfs_sync_flags,
+ 
+ };
+ 
+@@ -1579,5 +1584,6 @@ struct inode_operations reiserfs_special
+ 	.listxattr = reiserfs_listxattr,
+ 	.removexattr = reiserfs_removexattr,
+ 	.permission = reiserfs_permission,
++	.sync_flags = reiserfs_sync_flags,
+ 
+ };
+Index: vserver-sources-2.0.1_2.6.15/fs/reiserfs/stree.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/reiserfs/stree.c
++++ vserver-sources-2.0.1_2.6.15/fs/reiserfs/stree.c
+@@ -57,6 +57,7 @@
+ #include <linux/smp_lock.h>
+ #include <linux/buffer_head.h>
+ #include <linux/quotaops.h>
++#include <linux/vs_dlimit.h>
+ 
+ /* Does the buffer contain a disk block which is in the tree. */
+ inline int B_IS_IN_TREE(const struct buffer_head *p_s_bh)
+@@ -1365,6 +1366,7 @@ int reiserfs_delete_item(struct reiserfs
+ 		       "reiserquota delete_item(): freeing %u, id=%u type=%c",
+ 		       quota_cut_bytes, p_s_inode->i_uid, head2type(&s_ih));
+ #endif
++	DLIMIT_FREE_SPACE(p_s_inode, quota_cut_bytes);
+ 	DQUOT_FREE_SPACE_NODIRTY(p_s_inode, quota_cut_bytes);
+ 
+ 	/* Return deleted body length */
+@@ -1451,6 +1453,7 @@ void reiserfs_delete_solid_item(struct r
+ 					       quota_cut_bytes, inode->i_uid,
+ 					       key2type(key));
+ #endif
++				DLIMIT_FREE_SPACE(inode, quota_cut_bytes);
+ 				DQUOT_FREE_SPACE_NODIRTY(inode,
+ 							 quota_cut_bytes);
+ 			}
+@@ -1808,6 +1811,7 @@ int reiserfs_cut_from_item(struct reiser
+ 		       "reiserquota cut_from_item(): freeing %u id=%u type=%c",
+ 		       quota_cut_bytes, p_s_inode->i_uid, '?');
+ #endif
++	DLIMIT_FREE_SPACE(p_s_inode, quota_cut_bytes);
+ 	DQUOT_FREE_SPACE_NODIRTY(p_s_inode, quota_cut_bytes);
+ 	return n_ret_value;
+ }
+@@ -2048,6 +2052,11 @@ int reiserfs_paste_into_item(struct reis
+ 		pathrelse(p_s_search_path);
+ 		return -EDQUOT;
+ 	}
++	if (DLIMIT_ALLOC_SPACE(inode, n_pasted_size)) {
++		DQUOT_FREE_SPACE_NODIRTY(inode, n_pasted_size);
++		pathrelse(p_s_search_path);
++		return -ENOSPC;
++	}
+ 	init_tb_struct(th, &s_paste_balance, th->t_super, p_s_search_path,
+ 		       n_pasted_size);
+ #ifdef DISPLACE_NEW_PACKING_LOCALITIES
+@@ -2100,6 +2109,7 @@ int reiserfs_paste_into_item(struct reis
+ 		       n_pasted_size, inode->i_uid,
+ 		       key2type(&(p_s_key->on_disk_key)));
+ #endif
++	DLIMIT_FREE_SPACE(inode, n_pasted_size);
+ 	DQUOT_FREE_SPACE_NODIRTY(inode, n_pasted_size);
+ 	return retval;
+ }
+@@ -2137,6 +2147,11 @@ int reiserfs_insert_item(struct reiserfs
+ 			pathrelse(p_s_path);
+ 			return -EDQUOT;
+ 		}
++		if (DLIMIT_ALLOC_SPACE(inode, quota_bytes)) {
++			DQUOT_FREE_SPACE_NODIRTY(inode, quota_bytes);
++			pathrelse(p_s_path);
++			return -ENOSPC;
++		}
+ 	}
+ 	init_tb_struct(th, &s_ins_balance, th->t_super, p_s_path,
+ 		       IH_SIZE + ih_item_len(p_s_ih));
+@@ -2184,7 +2199,9 @@ int reiserfs_insert_item(struct reiserfs
+ 		       "reiserquota insert_item(): freeing %u id=%u type=%c",
+ 		       quota_bytes, inode->i_uid, head2type(p_s_ih));
+ #endif
+-	if (inode)
++	if (inode) {
++		DLIMIT_FREE_SPACE(inode, quota_bytes);
+ 		DQUOT_FREE_SPACE_NODIRTY(inode, quota_bytes);
++	}
+ 	return retval;
+ }
+Index: vserver-sources-2.0.1_2.6.15/fs/reiserfs/super.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/reiserfs/super.c
++++ vserver-sources-2.0.1_2.6.15/fs/reiserfs/super.c
+@@ -888,6 +888,9 @@ static int reiserfs_parse_options(struct
+ 		{"user_xattr",.setmask = 1 << REISERFS_UNSUPPORTED_OPT},
+ 		{"nouser_xattr",.clrmask = 1 << REISERFS_UNSUPPORTED_OPT},
+ #endif
++#ifndef CONFIG_INOXID_NONE
++		{"tagxid",.setmask = 1 << REISERFS_TAGXID},
++#endif
+ #ifdef CONFIG_REISERFS_FS_POSIX_ACL
+ 		{"acl",.setmask = 1 << REISERFS_POSIXACL},
+ 		{"noacl",.clrmask = 1 << REISERFS_POSIXACL},
+@@ -1160,6 +1163,12 @@ static int reiserfs_remount(struct super
+ 		return -EINVAL;
+ 	}
+ 
++	if ((mount_options & (1 << REISERFS_TAGXID)) &&
++		!(s->s_flags & MS_TAGXID)) {
++		reiserfs_warning(s, "reiserfs: tagxid not permitted on remount.");
++		return -EINVAL;
++	}
++
+ 	handle_attrs(s);
+ 
+ 	/* Add options that are safe here */
+@@ -1735,6 +1744,10 @@ static int reiserfs_fill_super(struct su
+ 		goto error;
+ 	}
+ 
++	/* map mount option tagxid */
++	if (REISERFS_SB(s)->s_mount_opt & (1 << REISERFS_TAGXID))
++		s->s_flags |= MS_TAGXID;
++
+ 	rs = SB_DISK_SUPER_BLOCK(s);
+ 	/* Let's do basic sanity check to verify that underlying device is not
+ 	   smaller than the filesystem. If the check fails then abort and scream,
+Index: vserver-sources-2.0.1_2.6.15/fs/stat.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/stat.c
++++ vserver-sources-2.0.1_2.6.15/fs/stat.c
+@@ -27,6 +27,7 @@ void generic_fillattr(struct inode *inod
+ 	stat->nlink = inode->i_nlink;
+ 	stat->uid = inode->i_uid;
+ 	stat->gid = inode->i_gid;
++	stat->xid = inode->i_xid;
+ 	stat->rdev = inode->i_rdev;
+ 	stat->atime = inode->i_atime;
+ 	stat->mtime = inode->i_mtime;
+Index: vserver-sources-2.0.1_2.6.15/fs/super.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/super.c
++++ vserver-sources-2.0.1_2.6.15/fs/super.c
+@@ -37,6 +37,8 @@
+ #include <linux/writeback.h>		/* for the emergency remount stuff */
+ #include <linux/idr.h>
+ #include <linux/kobject.h>
++#include <linux/devpts_fs.h>
++#include <linux/proc_fs.h>
+ #include <asm/uaccess.h>
+ 
+ 
+@@ -803,7 +805,7 @@ struct vfsmount *
+ do_kern_mount(const char *fstype, int flags, const char *name, void *data)
+ {
+ 	struct file_system_type *type = get_fs_type(fstype);
+-	struct super_block *sb = ERR_PTR(-ENOMEM);
++	struct super_block *sb;
+ 	struct vfsmount *mnt;
+ 	int error;
+ 	char *secdata = NULL;
+@@ -811,6 +813,12 @@ do_kern_mount(const char *fstype, int fl
+ 	if (!type)
+ 		return ERR_PTR(-ENODEV);
+ 
++	sb = ERR_PTR(-EPERM);
++	if ((type->fs_flags & FS_BINARY_MOUNTDATA) &&
++		!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_BINARY_MOUNT))
++		goto out;
++
++	sb = ERR_PTR(-ENOMEM);
+ 	mnt = alloc_vfsmnt(name);
+ 	if (!mnt)
+ 		goto out;
+@@ -832,6 +840,13 @@ do_kern_mount(const char *fstype, int fl
+ 	sb = type->get_sb(type, flags, name, data);
+ 	if (IS_ERR(sb))
+ 		goto out_free_secdata;
++
++	error = -EPERM;
++	if (!capable(CAP_SYS_ADMIN) && !sb->s_bdev &&
++		(sb->s_magic != PROC_SUPER_MAGIC) &&
++		(sb->s_magic != DEVPTS_SUPER_MAGIC))
++		goto out_sb;
++
+  	error = security_sb_kern_mount(sb, secdata);
+  	if (error)
+  		goto out_sb;
+Index: vserver-sources-2.0.1_2.6.15/fs/sysfs/mount.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/sysfs/mount.c
++++ vserver-sources-2.0.1_2.6.15/fs/sysfs/mount.c
+@@ -11,8 +11,6 @@
+ 
+ #include "sysfs.h"
+ 
+-/* Random magic number */
+-#define SYSFS_MAGIC 0x62656572
+ 
+ struct vfsmount *sysfs_mount;
+ struct super_block * sysfs_sb = NULL;
+@@ -38,7 +36,7 @@ static int sysfs_fill_super(struct super
+ 
+ 	sb->s_blocksize = PAGE_CACHE_SIZE;
+ 	sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
+-	sb->s_magic = SYSFS_MAGIC;
++	sb->s_magic = SYSFS_SUPER_MAGIC;
+ 	sb->s_op = &sysfs_ops;
+ 	sb->s_time_gran = 1;
+ 	sysfs_sb = sb;
+Index: vserver-sources-2.0.1_2.6.15/fs/xfs/linux-2.6/xfs_ioctl.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/xfs/linux-2.6/xfs_ioctl.c
++++ vserver-sources-2.0.1_2.6.15/fs/xfs/linux-2.6/xfs_ioctl.c
+@@ -1098,6 +1098,8 @@ xfs_ioc_fsgeometry(
+ #define LINUX_XFLAG_APPEND	0x00000020 /* writes to file may only append */
+ #define LINUX_XFLAG_NODUMP	0x00000040 /* do not dump file */
+ #define LINUX_XFLAG_NOATIME	0x00000080 /* do not update atime */
++#define LINUX_XFLAG_BARRIER	0x04000000 /* chroot() barrier */
++#define LINUX_XFLAG_IUNLINK	0x08000000 /* immutable unlink */
+ 
+ STATIC unsigned int
+ xfs_merge_ioc_xflags(
+@@ -1138,6 +1140,10 @@ xfs_di2lxflags(
+ 
+ 	if (di_flags & XFS_DIFLAG_IMMUTABLE)
+ 		flags |= LINUX_XFLAG_IMMUTABLE;
++	if (di_flags & XFS_DIFLAG_IUNLINK)
++		flags |= LINUX_XFLAG_IUNLINK;
++	if (di_flags & XFS_DIFLAG_BARRIER)
++		flags |= LINUX_XFLAG_BARRIER;
+ 	if (di_flags & XFS_DIFLAG_APPEND)
+ 		flags |= LINUX_XFLAG_APPEND;
+ 	if (di_flags & XFS_DIFLAG_SYNC)
+Index: vserver-sources-2.0.1_2.6.15/fs/xfs/linux-2.6/xfs_iops.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/xfs/linux-2.6/xfs_iops.c
++++ vserver-sources-2.0.1_2.6.15/fs/xfs/linux-2.6/xfs_iops.c
+@@ -53,6 +53,7 @@
+ 
+ #include <linux/xattr.h>
+ #include <linux/namei.h>
++#include <linux/vserver/xid.h>
+ 
+ /*
+  * Change the requested timestamp in the given inode.
+@@ -354,6 +355,7 @@ linvfs_lookup(
+ 		d_add(dentry, NULL);
+ 		return NULL;
+ 	}
++	vx_propagate_xid(nd, LINVFS_GET_IP(cvp));
+ 
+ 	return d_splice_alias(LINVFS_GET_IP(cvp), dentry);
+ }
+@@ -587,6 +589,41 @@ linvfs_getattr(
+ }
+ 
+ STATIC int
++linvfs_sync_flags(struct inode *inode)
++{
++	unsigned int oldflags, newflags;
++	vattr_t		vattr;
++	int		flags = 0;
++	int		error;
++	vnode_t		*vp = LINVFS_GET_VP(inode);
++
++	memset(&vattr, 0, sizeof(vattr_t));
++
++	vattr.va_mask = XFS_AT_XFLAGS;
++	VOP_GETATTR(vp, &vattr, 0, NULL, error);
++	if (error)
++		return error;
++	oldflags = vattr.va_xflags;
++	newflags = oldflags & ~(XFS_XFLAG_IMMUTABLE |
++		XFS_XFLAG_IUNLINK | XFS_XFLAG_BARRIER);
++
++	if (IS_IMMUTABLE(inode))
++		newflags |= XFS_XFLAG_IMMUTABLE;
++	if (IS_IUNLINK(inode))
++		newflags |= XFS_XFLAG_IUNLINK;
++	if (IS_BARRIER(inode))
++		newflags |= XFS_XFLAG_BARRIER;
++
++	if (oldflags ^ newflags) {
++		vattr.va_xflags = newflags;
++		vattr.va_mask |= XFS_AT_XFLAGS;
++		VOP_SETATTR(vp, &vattr, flags, NULL, error);
++	}
++	vn_revalidate(vp);
++	return error;
++}
++
++STATIC int
+ linvfs_setattr(
+ 	struct dentry	*dentry,
+ 	struct iattr	*attr)
+@@ -598,6 +635,10 @@ linvfs_setattr(
+ 	int		flags = 0;
+ 	int		error;
+ 
++	error = inode_change_ok(inode, attr);
++	if (error)
++		return error;
++
+ 	memset(&vattr, 0, sizeof(vattr_t));
+ 	if (ia_valid & ATTR_UID) {
+ 		vattr.va_mask |= XFS_AT_UID;
+@@ -607,6 +648,10 @@ linvfs_setattr(
+ 		vattr.va_mask |= XFS_AT_GID;
+ 		vattr.va_gid = attr->ia_gid;
+ 	}
++	if ((ia_valid & ATTR_XID) && IS_TAGXID(inode)) {
++		vattr.va_mask |= XFS_AT_XID;
++		vattr.va_xid = attr->ia_xid;
++	}
+ 	if (ia_valid & ATTR_SIZE) {
+ 		vattr.va_mask |= XFS_AT_SIZE;
+ 		vattr.va_size = attr->ia_size;
+@@ -764,6 +809,7 @@ struct inode_operations linvfs_file_inod
+ 	.getxattr		= linvfs_getxattr,
+ 	.listxattr		= linvfs_listxattr,
+ 	.removexattr		= linvfs_removexattr,
++	.sync_flags		= linvfs_sync_flags,
+ };
+ 
+ struct inode_operations linvfs_dir_inode_operations = {
+@@ -783,6 +829,7 @@ struct inode_operations linvfs_dir_inode
+ 	.getxattr		= linvfs_getxattr,
+ 	.listxattr		= linvfs_listxattr,
+ 	.removexattr		= linvfs_removexattr,
++	.sync_flags		= linvfs_sync_flags,
+ };
+ 
+ struct inode_operations linvfs_symlink_inode_operations = {
+@@ -796,4 +843,5 @@ struct inode_operations linvfs_symlink_i
+ 	.getxattr		= linvfs_getxattr,
+ 	.listxattr		= linvfs_listxattr,
+ 	.removexattr		= linvfs_removexattr,
++	.sync_flags		= linvfs_sync_flags,
+ };
+Index: vserver-sources-2.0.1_2.6.15/fs/xfs/linux-2.6/xfs_linux.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/xfs/linux-2.6/xfs_linux.h
++++ vserver-sources-2.0.1_2.6.15/fs/xfs/linux-2.6/xfs_linux.h
+@@ -137,6 +137,7 @@ static inline void set_buffer_unwritten_
+ #define current_pid()		(current->pid)
+ #define current_fsuid(cred)	(current->fsuid)
+ #define current_fsgid(cred)	(current->fsgid)
++#define current_fsxid(cred,vp)	(vx_current_fsxid(LINVFS_GET_IP(vp)->i_sb))
+ 
+ #define NBPP		PAGE_SIZE
+ #define DPPSHFT		(PAGE_SHIFT - 9)
+Index: vserver-sources-2.0.1_2.6.15/fs/xfs/linux-2.6/xfs_super.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/xfs/linux-2.6/xfs_super.c
++++ vserver-sources-2.0.1_2.6.15/fs/xfs/linux-2.6/xfs_super.c
+@@ -161,6 +161,7 @@ xfs_revalidate_inode(
+ 	inode->i_nlink	= ip->i_d.di_nlink;
+ 	inode->i_uid	= ip->i_d.di_uid;
+ 	inode->i_gid	= ip->i_d.di_gid;
++	inode->i_xid	= ip->i_d.di_xid;
+ 
+ 	switch (inode->i_mode & S_IFMT) {
+ 	case S_IFBLK:
+@@ -189,6 +190,14 @@ xfs_revalidate_inode(
+ 		inode->i_flags |= S_IMMUTABLE;
+ 	else
+ 		inode->i_flags &= ~S_IMMUTABLE;
++	if (ip->i_d.di_flags & XFS_DIFLAG_IUNLINK)
++		inode->i_flags |= S_IUNLINK;
++	else
++		inode->i_flags &= ~S_IUNLINK;
++	if (ip->i_d.di_flags & XFS_DIFLAG_BARRIER)
++		inode->i_flags |= S_BARRIER;
++	else
++		inode->i_flags &= ~S_BARRIER;
+ 	if (ip->i_d.di_flags & XFS_DIFLAG_APPEND)
+ 		inode->i_flags |= S_APPEND;
+ 	else
+@@ -726,6 +735,12 @@ linvfs_remount(
+ 	int			error;
+ 
+ 	VFS_PARSEARGS(vfsp, options, args, 1, error);
++	if ((args->flags2 & XFSMNT2_TAGXID) &&
++		!(sb->s_flags & MS_TAGXID)) {
++		printk("XFS: %s: tagxid not permitted on remount.\n",
++			sb->s_id);
++		error = EINVAL;
++	}
+ 	if (!error)
+ 		VFS_MNTUPDATE(vfsp, flags, args, error);
+ 	kmem_free(args, sizeof(*args));
+Index: vserver-sources-2.0.1_2.6.15/fs/xfs/linux-2.6/xfs_sysctl.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/xfs/linux-2.6/xfs_sysctl.c
++++ vserver-sources-2.0.1_2.6.15/fs/xfs/linux-2.6/xfs_sysctl.c
+@@ -58,74 +58,74 @@ xfs_stats_clear_proc_handler(
+ STATIC ctl_table xfs_table[] = {
+ 	{XFS_RESTRICT_CHOWN, "restrict_chown", &xfs_params.restrict_chown.val,
+ 	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+-	&sysctl_intvec, NULL,
++	NULL, &sysctl_intvec, NULL,
+ 	&xfs_params.restrict_chown.min, &xfs_params.restrict_chown.max},
+ 
+ 	{XFS_SGID_INHERIT, "irix_sgid_inherit", &xfs_params.sgid_inherit.val,
+ 	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+-	&sysctl_intvec, NULL,
++	NULL, &sysctl_intvec, NULL,
+ 	&xfs_params.sgid_inherit.min, &xfs_params.sgid_inherit.max},
+ 
+ 	{XFS_SYMLINK_MODE, "irix_symlink_mode", &xfs_params.symlink_mode.val,
+ 	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+-	&sysctl_intvec, NULL,
++	NULL, &sysctl_intvec, NULL,
+ 	&xfs_params.symlink_mode.min, &xfs_params.symlink_mode.max},
+ 
+ 	{XFS_PANIC_MASK, "panic_mask", &xfs_params.panic_mask.val,
+ 	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+-	&sysctl_intvec, NULL,
++	NULL, &sysctl_intvec, NULL,
+ 	&xfs_params.panic_mask.min, &xfs_params.panic_mask.max},
+ 
+ 	{XFS_ERRLEVEL, "error_level", &xfs_params.error_level.val,
+ 	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+-	&sysctl_intvec, NULL,
++	NULL, &sysctl_intvec, NULL,
+ 	&xfs_params.error_level.min, &xfs_params.error_level.max},
+ 
+ 	{XFS_SYNCD_TIMER, "xfssyncd_centisecs", &xfs_params.syncd_timer.val,
+ 	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+-	&sysctl_intvec, NULL,
++	NULL, &sysctl_intvec, NULL,
+ 	&xfs_params.syncd_timer.min, &xfs_params.syncd_timer.max},
+ 
+ 	{XFS_INHERIT_SYNC, "inherit_sync", &xfs_params.inherit_sync.val,
+ 	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+-	&sysctl_intvec, NULL,
++	NULL, &sysctl_intvec, NULL,
+ 	&xfs_params.inherit_sync.min, &xfs_params.inherit_sync.max},
+ 
+ 	{XFS_INHERIT_NODUMP, "inherit_nodump", &xfs_params.inherit_nodump.val,
+ 	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+-	&sysctl_intvec, NULL,
++	NULL, &sysctl_intvec, NULL,
+ 	&xfs_params.inherit_nodump.min, &xfs_params.inherit_nodump.max},
+ 
+ 	{XFS_INHERIT_NOATIME, "inherit_noatime", &xfs_params.inherit_noatim.val,
+ 	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+-	&sysctl_intvec, NULL,
++	NULL, &sysctl_intvec, NULL,
+ 	&xfs_params.inherit_noatim.min, &xfs_params.inherit_noatim.max},
+ 
+ 	{XFS_BUF_TIMER, "xfsbufd_centisecs", &xfs_params.xfs_buf_timer.val,
+ 	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+-	&sysctl_intvec, NULL,
++	NULL, &sysctl_intvec, NULL,
+ 	&xfs_params.xfs_buf_timer.min, &xfs_params.xfs_buf_timer.max},
+ 
+ 	{XFS_BUF_AGE, "age_buffer_centisecs", &xfs_params.xfs_buf_age.val,
+ 	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+-	&sysctl_intvec, NULL,
++	NULL, &sysctl_intvec, NULL,
+ 	&xfs_params.xfs_buf_age.min, &xfs_params.xfs_buf_age.max},
+ 
+ 	{XFS_INHERIT_NOSYM, "inherit_nosymlinks", &xfs_params.inherit_nosym.val,
+ 	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+-	&sysctl_intvec, NULL,
++	NULL, &sysctl_intvec, NULL,
+ 	&xfs_params.inherit_nosym.min, &xfs_params.inherit_nosym.max},
+ 
+ 	{XFS_ROTORSTEP, "rotorstep", &xfs_params.rotorstep.val,
+ 	sizeof(int), 0644, NULL, &proc_dointvec_minmax,
+-	&sysctl_intvec, NULL,
++	NULL, &sysctl_intvec, NULL,
+ 	&xfs_params.rotorstep.min, &xfs_params.rotorstep.max},
+ 
+ 	/* please keep this the last entry */
+ #ifdef CONFIG_PROC_FS
+ 	{XFS_STATS_CLEAR, "stats_clear", &xfs_params.stats_clear.val,
+ 	sizeof(int), 0644, NULL, &xfs_stats_clear_proc_handler,
+-	&sysctl_intvec, NULL,
++	NULL, &sysctl_intvec, NULL,
+ 	&xfs_params.stats_clear.min, &xfs_params.stats_clear.max},
+ #endif /* CONFIG_PROC_FS */
+ 
+Index: vserver-sources-2.0.1_2.6.15/fs/xfs/linux-2.6/xfs_vnode.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/xfs/linux-2.6/xfs_vnode.c
++++ vserver-sources-2.0.1_2.6.15/fs/xfs/linux-2.6/xfs_vnode.c
+@@ -103,6 +103,7 @@ vn_revalidate_core(
+ 	inode->i_nlink	    = vap->va_nlink;
+ 	inode->i_uid	    = vap->va_uid;
+ 	inode->i_gid	    = vap->va_gid;
++	inode->i_xid	    = vap->va_xid;
+ 	inode->i_blocks	    = vap->va_nblocks;
+ 	inode->i_mtime	    = vap->va_mtime;
+ 	inode->i_ctime	    = vap->va_ctime;
+@@ -112,6 +113,14 @@ vn_revalidate_core(
+ 		inode->i_flags |= S_IMMUTABLE;
+ 	else
+ 		inode->i_flags &= ~S_IMMUTABLE;
++	if (vap->va_xflags & XFS_XFLAG_IUNLINK)
++		inode->i_flags |= S_IUNLINK;
++	else
++		inode->i_flags &= ~S_IUNLINK;
++	if (vap->va_xflags & XFS_XFLAG_BARRIER)
++		inode->i_flags |= S_BARRIER;
++	else
++		inode->i_flags &= ~S_BARRIER;
+ 	if (vap->va_xflags & XFS_XFLAG_APPEND)
+ 		inode->i_flags |= S_APPEND;
+ 	else
+Index: vserver-sources-2.0.1_2.6.15/fs/xfs/linux-2.6/xfs_vnode.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/xfs/linux-2.6/xfs_vnode.h
++++ vserver-sources-2.0.1_2.6.15/fs/xfs/linux-2.6/xfs_vnode.h
+@@ -386,6 +386,7 @@ typedef struct vattr {
+ 	xfs_nlink_t	va_nlink;	/* number of references to file */
+ 	uid_t		va_uid;		/* owner user id */
+ 	gid_t		va_gid;		/* owner group id */
++	xid_t		va_xid;		/* owner group id */
+ 	xfs_ino_t	va_nodeid;	/* file id */
+ 	xfs_off_t	va_size;	/* file size in bytes */
+ 	u_long		va_blocksize;	/* blocksize preferred for i/o */
+@@ -434,13 +435,15 @@ typedef struct vattr {
+ #define XFS_AT_PROJID		0x04000000
+ #define XFS_AT_SIZE_NOPERM	0x08000000
+ #define XFS_AT_GENCOUNT		0x10000000
++#define XFS_AT_XID		0x20000000
+ 
+ #define XFS_AT_ALL	(XFS_AT_TYPE|XFS_AT_MODE|XFS_AT_UID|XFS_AT_GID|\
+ 		XFS_AT_FSID|XFS_AT_NODEID|XFS_AT_NLINK|XFS_AT_SIZE|\
+ 		XFS_AT_ATIME|XFS_AT_MTIME|XFS_AT_CTIME|XFS_AT_RDEV|\
+ 		XFS_AT_BLKSIZE|XFS_AT_NBLOCKS|XFS_AT_VCODE|XFS_AT_MAC|\
+ 		XFS_AT_ACL|XFS_AT_CAP|XFS_AT_INF|XFS_AT_XFLAGS|XFS_AT_EXTSIZE|\
+-		XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|XFS_AT_PROJID|XFS_AT_GENCOUNT)
++		XFS_AT_NEXTENTS|XFS_AT_ANEXTENTS|XFS_AT_PROJID|XFS_AT_GENCOUNT\
++		XFS_AT_XID)
+ 
+ #define XFS_AT_STAT	(XFS_AT_TYPE|XFS_AT_MODE|XFS_AT_UID|XFS_AT_GID|\
+ 		XFS_AT_FSID|XFS_AT_NODEID|XFS_AT_NLINK|XFS_AT_SIZE|\
+Index: vserver-sources-2.0.1_2.6.15/fs/xfs/xfs_clnt.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/xfs/xfs_clnt.h
++++ vserver-sources-2.0.1_2.6.15/fs/xfs/xfs_clnt.h
+@@ -100,5 +100,7 @@ struct xfs_mount_args {
+  */
+ #define XFSMNT2_COMPAT_IOSIZE	0x00000001	/* don't report large preferred
+ 						 * I/O size in stat(2) */
++#define XFSMNT2_TAGXID		0x80000000	/* context xid tagging */
++
+ 
+ #endif	/* __XFS_CLNT_H__ */
+Index: vserver-sources-2.0.1_2.6.15/fs/xfs/xfs_dinode.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/xfs/xfs_dinode.h
++++ vserver-sources-2.0.1_2.6.15/fs/xfs/xfs_dinode.h
+@@ -53,7 +53,8 @@ typedef struct xfs_dinode_core
+ 	__uint32_t	di_gid;		/* owner's group id */
+ 	__uint32_t	di_nlink;	/* number of links to file */
+ 	__uint16_t	di_projid;	/* owner's project id */
+-	__uint8_t	di_pad[8];	/* unused, zeroed space */
++	__uint16_t	di_xid;		/* vserver context id */
++	__uint8_t	di_pad[6];	/* unused, zeroed space */
+ 	__uint16_t	di_flushiter;	/* incremented on flush */
+ 	xfs_timestamp_t	di_atime;	/* time last accessed */
+ 	xfs_timestamp_t	di_mtime;	/* time last modified */
+@@ -248,6 +249,9 @@ typedef enum xfs_dinode_fmt
+ #define XFS_DIFLAG_RTINHERIT_BIT 8	/* create with realtime bit set */
+ #define XFS_DIFLAG_PROJINHERIT_BIT  9	/* create with parents projid */
+ #define XFS_DIFLAG_NOSYMLINKS_BIT  10	/* disallow symlink creation */
++#define XFS_DIFLAG_BARRIER_BIT	 12	/* chroot() barrier */
++#define XFS_DIFLAG_IUNLINK_BIT	 13	/* immutable unlink */
++
+ #define XFS_DIFLAG_REALTIME      (1 << XFS_DIFLAG_REALTIME_BIT)
+ #define XFS_DIFLAG_PREALLOC      (1 << XFS_DIFLAG_PREALLOC_BIT)
+ #define XFS_DIFLAG_NEWRTBM       (1 << XFS_DIFLAG_NEWRTBM_BIT)
+@@ -259,11 +263,15 @@ typedef enum xfs_dinode_fmt
+ #define XFS_DIFLAG_RTINHERIT     (1 << XFS_DIFLAG_RTINHERIT_BIT)
+ #define XFS_DIFLAG_PROJINHERIT   (1 << XFS_DIFLAG_PROJINHERIT_BIT)
+ #define XFS_DIFLAG_NOSYMLINKS    (1 << XFS_DIFLAG_NOSYMLINKS_BIT)
++#define XFS_DIFLAG_BARRIER	 (1 << XFS_DIFLAG_BARRIER_BIT)
++#define XFS_DIFLAG_IUNLINK	 (1 << XFS_DIFLAG_IUNLINK_BIT)
++
+ 
+ #define XFS_DIFLAG_ANY \
+ 	(XFS_DIFLAG_REALTIME | XFS_DIFLAG_PREALLOC | XFS_DIFLAG_NEWRTBM | \
+ 	 XFS_DIFLAG_IMMUTABLE | XFS_DIFLAG_APPEND | XFS_DIFLAG_SYNC | \
+ 	 XFS_DIFLAG_NOATIME | XFS_DIFLAG_NODUMP | XFS_DIFLAG_RTINHERIT | \
+-	 XFS_DIFLAG_PROJINHERIT | XFS_DIFLAG_NOSYMLINKS)
++	 XFS_DIFLAG_PROJINHERIT | XFS_DIFLAG_NOSYMLINKS | \
++	 XFS_DIFLAG_BARRIER | XFS_DIFLAG_IUNLINK)
+ 
+ #endif	/* __XFS_DINODE_H__ */
+Index: vserver-sources-2.0.1_2.6.15/fs/xfs/xfs_fs.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/xfs/xfs_fs.h
++++ vserver-sources-2.0.1_2.6.15/fs/xfs/xfs_fs.h
+@@ -65,6 +65,8 @@ struct fsxattr {
+ #define XFS_XFLAG_RTINHERIT	0x00000100	/* create with rt bit set */
+ #define XFS_XFLAG_PROJINHERIT	0x00000200	/* create with parents projid */
+ #define XFS_XFLAG_NOSYMLINKS	0x00000400	/* disallow symlink creation */
++#define XFS_XFLAG_BARRIER	0x00004000	/* chroot() barrier */
++#define XFS_XFLAG_IUNLINK	0x00008000	/* immutable unlink */
+ #define XFS_XFLAG_HASATTR	0x80000000	/* no DIFLAG for this	*/
+ 
+ /*
+@@ -293,7 +295,8 @@ typedef struct xfs_bstat {
+ 	__s32		bs_extents;	/* number of extents		*/
+ 	__u32		bs_gen;		/* generation count		*/
+ 	__u16		bs_projid;	/* project id			*/
+-	unsigned char	bs_pad[14];	/* pad space, unused		*/
++	__u16		bs_xid;		/* context id			*/
++	unsigned char	bs_pad[12];	/* pad space, unused		*/
+ 	__u32		bs_dmevmask;	/* DMIG event mask		*/
+ 	__u16		bs_dmstate;	/* DMIG state info		*/
+ 	__u16		bs_aextents;	/* attribute number of extents	*/
+Index: vserver-sources-2.0.1_2.6.15/fs/xfs/xfs_inode.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/xfs/xfs_inode.c
++++ vserver-sources-2.0.1_2.6.15/fs/xfs/xfs_inode.c
+@@ -52,6 +52,7 @@
+ #include "xfs_mac.h"
+ #include "xfs_acl.h"
+ 
++#include <linux/vserver/xid.h>
+ 
+ kmem_zone_t *xfs_ifork_zone;
+ kmem_zone_t *xfs_inode_zone;
+@@ -733,20 +734,35 @@ xfs_xlate_dinode_core(
+ 	xfs_dinode_core_t	*buf_core = (xfs_dinode_core_t *)buf;
+ 	xfs_dinode_core_t	*mem_core = (xfs_dinode_core_t *)dip;
+ 	xfs_arch_t		arch = ARCH_CONVERT;
++	uint32_t		uid = 0, gid = 0;
++	uint16_t		xid = 0;
+ 
+ 	ASSERT(dir);
+ 
++	if (dir < 0) {
++		xid = mem_core->di_xid;
++		/* FIXME: supposed to use superblock flag */
++		uid = XIDINO_UID(1, mem_core->di_uid, xid);
++		gid = XIDINO_GID(1, mem_core->di_gid, xid);
++		xid = XIDINO_XID(1, xid);
++	}
++
+ 	INT_XLATE(buf_core->di_magic, mem_core->di_magic, dir, arch);
+ 	INT_XLATE(buf_core->di_mode, mem_core->di_mode, dir, arch);
+ 	INT_XLATE(buf_core->di_version,	mem_core->di_version, dir, arch);
+ 	INT_XLATE(buf_core->di_format, mem_core->di_format, dir, arch);
+ 	INT_XLATE(buf_core->di_onlink, mem_core->di_onlink, dir, arch);
+-	INT_XLATE(buf_core->di_uid, mem_core->di_uid, dir, arch);
+-	INT_XLATE(buf_core->di_gid, mem_core->di_gid, dir, arch);
++	INT_XLATE(buf_core->di_uid, uid, dir, arch);
++	INT_XLATE(buf_core->di_gid, gid, dir, arch);
++	INT_XLATE(buf_core->di_xid, xid, dir, arch);
+ 	INT_XLATE(buf_core->di_nlink, mem_core->di_nlink, dir, arch);
+ 	INT_XLATE(buf_core->di_projid, mem_core->di_projid, dir, arch);
+ 
+ 	if (dir > 0) {
++		/* FIXME: supposed to use superblock flag */
++		mem_core->di_uid = INOXID_UID(1, uid, gid);
++		mem_core->di_gid = INOXID_GID(1, uid, gid);
++		mem_core->di_xid = INOXID_XID(1, uid, gid, xid);
+ 		memcpy(mem_core->di_pad, buf_core->di_pad,
+ 			sizeof(buf_core->di_pad));
+ 	} else {
+@@ -795,6 +811,10 @@ _xfs_dic2xflags(
+ 			flags |= XFS_XFLAG_PREALLOC;
+ 		if (di_flags & XFS_DIFLAG_IMMUTABLE)
+ 			flags |= XFS_XFLAG_IMMUTABLE;
++		if (di_flags & XFS_DIFLAG_IUNLINK)
++			flags |= XFS_XFLAG_IUNLINK;
++		if (di_flags & XFS_DIFLAG_BARRIER)
++			flags |= XFS_XFLAG_BARRIER;
+ 		if (di_flags & XFS_DIFLAG_APPEND)
+ 			flags |= XFS_XFLAG_APPEND;
+ 		if (di_flags & XFS_DIFLAG_SYNC)
+@@ -1120,6 +1140,7 @@ xfs_ialloc(
+ 	ASSERT(ip->i_d.di_nlink == nlink);
+ 	ip->i_d.di_uid = current_fsuid(cr);
+ 	ip->i_d.di_gid = current_fsgid(cr);
++	ip->i_d.di_xid = current_fsxid(cr, vp);
+ 	ip->i_d.di_projid = prid;
+ 	memset(&(ip->i_d.di_pad[0]), 0, sizeof(ip->i_d.di_pad));
+ 
+Index: vserver-sources-2.0.1_2.6.15/fs/xfs/xfs_itable.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/xfs/xfs_itable.c
++++ vserver-sources-2.0.1_2.6.15/fs/xfs/xfs_itable.c
+@@ -83,6 +83,7 @@ xfs_bulkstat_one_iget(
+ 	buf->bs_mode = dic->di_mode;
+ 	buf->bs_uid = dic->di_uid;
+ 	buf->bs_gid = dic->di_gid;
++	buf->bs_xid = dic->di_xid;
+ 	buf->bs_size = dic->di_size;
+ 	buf->bs_atime.tv_sec = dic->di_atime.t_sec;
+ 	buf->bs_atime.tv_nsec = dic->di_atime.t_nsec;
+@@ -158,6 +159,7 @@ xfs_bulkstat_one_dinode(
+ 	buf->bs_mode = INT_GET(dic->di_mode, ARCH_CONVERT);
+ 	buf->bs_uid = INT_GET(dic->di_uid, ARCH_CONVERT);
+ 	buf->bs_gid = INT_GET(dic->di_gid, ARCH_CONVERT);
++	buf->bs_xid = INT_GET(dic->di_xid, ARCH_CONVERT);
+ 	buf->bs_size = INT_GET(dic->di_size, ARCH_CONVERT);
+ 	buf->bs_atime.tv_sec = INT_GET(dic->di_atime.t_sec, ARCH_CONVERT);
+ 	buf->bs_atime.tv_nsec = INT_GET(dic->di_atime.t_nsec, ARCH_CONVERT);
+Index: vserver-sources-2.0.1_2.6.15/fs/xfs/xfs_mount.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/xfs/xfs_mount.h
++++ vserver-sources-2.0.1_2.6.15/fs/xfs/xfs_mount.h
+@@ -413,6 +413,7 @@ typedef struct xfs_mount {
+ #define XFS_MOUNT_COMPAT_IOSIZE	(1ULL << 22)	/* don't report large preferred
+ 						 * I/O size in stat() */
+ 
++#define XFS_MOUNT_TAGXID	(1ULL << 31)	/* context xid tagging */
+ 
+ /*
+  * Default minimum read and write sizes.
+Index: vserver-sources-2.0.1_2.6.15/fs/xfs/xfs_vfsops.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/xfs/xfs_vfsops.c
++++ vserver-sources-2.0.1_2.6.15/fs/xfs/xfs_vfsops.c
+@@ -295,6 +295,8 @@ xfs_start_flags(
+ 
+ 	if (ap->flags2 & XFSMNT2_COMPAT_IOSIZE)
+ 		mp->m_flags |= XFS_MOUNT_COMPAT_IOSIZE;
++	if (ap->flags2 & XFSMNT2_TAGXID)
++		mp->m_flags |= XFS_MOUNT_TAGXID;
+ 
+ 	/*
+ 	 * no recovery flag requires a read-only mount
+@@ -386,6 +388,8 @@ xfs_finish_flags(
+ 		mp->m_flags &= ~XFS_MOUNT_COMPAT_ATTR;
+ 	}
+ 
++	if (ap->flags2 & XFSMNT2_TAGXID)
++		vfs->vfs_super->s_flags |= MS_TAGXID;
+ 	return 0;
+ }
+ 
+@@ -1643,6 +1647,7 @@ xfs_vget(
+ 					 * in stat(). */
+ #define MNTOPT_ATTR2	"attr2"		/* do use attr2 attribute format */
+ #define MNTOPT_NOATTR2	"noattr2"	/* do not use attr2 attribute format */
++#define MNTOPT_TAGXID	"tagxid"	/* context xid tagging for inodes */
+ 
+ STATIC unsigned long
+ suffix_strtoul(const char *cp, char **endp, unsigned int base)
+@@ -1818,6 +1823,10 @@ xfs_parseargs(
+ 			args->flags &= ~XFSMNT_COMPAT_ATTR;
+ 		} else if (!strcmp(this_char, MNTOPT_NOATTR2)) {
+ 			args->flags |= XFSMNT_COMPAT_ATTR;
++#ifndef CONFIG_INOXID_NONE
++		} else if (!strcmp(this_char, MNTOPT_TAGXID)) {
++			args->flags2 |= XFSMNT2_TAGXID;
++#endif
+ 		} else if (!strcmp(this_char, "osyncisdsync")) {
+ 			/* no-op, this is now the default */
+ printk("XFS: osyncisdsync is now the default, option is deprecated.\n");
+Index: vserver-sources-2.0.1_2.6.15/fs/xfs/xfs_vnodeops.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/fs/xfs/xfs_vnodeops.c
++++ vserver-sources-2.0.1_2.6.15/fs/xfs/xfs_vnodeops.c
+@@ -151,6 +151,7 @@ xfs_getattr(
+ 	vap->va_mode = ip->i_d.di_mode;
+ 	vap->va_uid = ip->i_d.di_uid;
+ 	vap->va_gid = ip->i_d.di_gid;
++	vap->va_xid = ip->i_d.di_xid;
+ 	vap->va_projid = ip->i_d.di_projid;
+ 
+ 	/*
+@@ -252,6 +253,7 @@ xfs_setattr(
+ 	uint			commit_flags=0;
+ 	uid_t			uid=0, iuid=0;
+ 	gid_t			gid=0, igid=0;
++	xid_t			xid=0, ixid=0;
+ 	int			timeflags = 0;
+ 	vnode_t			*vp;
+ 	xfs_prid_t		projid=0, iprojid=0;
+@@ -308,6 +310,7 @@ xfs_setattr(
+ 	    (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_PROJID))) {
+ 		uint	qflags = 0;
+ 
++		/* FIXME: handle xid? */
+ 		if ((mask & XFS_AT_UID) && XFS_IS_UQUOTA_ON(mp)) {
+ 			uid = vap->va_uid;
+ 			qflags |= XFS_QMOPT_UQUOTA;
+@@ -388,6 +391,8 @@ xfs_setattr(
+ 	if (mask &
+ 	    (XFS_AT_MODE|XFS_AT_XFLAGS|XFS_AT_EXTSIZE|XFS_AT_UID|
+ 	     XFS_AT_GID|XFS_AT_PROJID)) {
++		/* FIXME: handle xid? */
++
+ 		/*
+ 		 * CAP_FOWNER overrides the following restrictions:
+ 		 *
+@@ -436,7 +441,7 @@ xfs_setattr(
+ 	 * and can change the group id only to a group of which he
+ 	 * or she is a member.
+ 	 */
+-	if (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_PROJID)) {
++	if (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_XID|XFS_AT_PROJID)) {
+ 		/*
+ 		 * These IDs could have changed since we last looked at them.
+ 		 * But, we're assured that if the ownership did change
+@@ -444,10 +449,12 @@ xfs_setattr(
+ 		 * would have changed also.
+ 		 */
+ 		iuid = ip->i_d.di_uid;
+-		iprojid = ip->i_d.di_projid;
+ 		igid = ip->i_d.di_gid;
+-		gid = (mask & XFS_AT_GID) ? vap->va_gid : igid;
++		ixid = ip->i_d.di_xid;
++		iprojid = ip->i_d.di_projid;
+ 		uid = (mask & XFS_AT_UID) ? vap->va_uid : iuid;
++		gid = (mask & XFS_AT_GID) ? vap->va_gid : igid;
++		xid = (mask & XFS_AT_XID) ? vap->va_xid : ixid;
+ 		projid = (mask & XFS_AT_PROJID) ? (xfs_prid_t)vap->va_projid :
+ 			 iprojid;
+ 
+@@ -475,6 +482,7 @@ xfs_setattr(
+ 		if ((XFS_IS_UQUOTA_ON(mp) && iuid != uid) ||
+ 		    (XFS_IS_PQUOTA_ON(mp) && iprojid != projid) ||
+ 		    (XFS_IS_GQUOTA_ON(mp) && igid != gid)) {
++			/* FIXME: handle xid? */
+ 			ASSERT(tp);
+ 			code = XFS_QM_DQVOPCHOWNRESV(mp, tp, ip, udqp, gdqp,
+ 						capable(CAP_FOWNER) ?
+@@ -709,7 +717,7 @@ xfs_setattr(
+ 	 * and can change the group id only to a group of which he
+ 	 * or she is a member.
+ 	 */
+-	if (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_PROJID)) {
++	if (mask & (XFS_AT_UID|XFS_AT_GID|XFS_AT_XID|XFS_AT_PROJID)) {
+ 		/*
+ 		 * CAP_FSETID overrides the following restrictions:
+ 		 *
+@@ -725,6 +733,12 @@ xfs_setattr(
+ 		 * Change the ownerships and register quota modifications
+ 		 * in the transaction.
+ 		 */
++		if (ixid != xid) {
++			if (XFS_IS_GQUOTA_ON(mp)) {
++				/* FIXME: handle xid quota? */
++			}
++			ip->i_d.di_xid = xid;
++		}
+ 		if (iuid != uid) {
+ 			if (XFS_IS_UQUOTA_ON(mp)) {
+ 				ASSERT(mask & XFS_AT_UID);
+@@ -805,6 +819,10 @@ xfs_setattr(
+ 			di_flags = (ip->i_d.di_flags & XFS_DIFLAG_PREALLOC);
+ 			if (vap->va_xflags & XFS_XFLAG_IMMUTABLE)
+ 				di_flags |= XFS_DIFLAG_IMMUTABLE;
++			if (vap->va_xflags & XFS_XFLAG_IUNLINK)
++				di_flags |= XFS_DIFLAG_IUNLINK;
++			if (vap->va_xflags & XFS_XFLAG_BARRIER)
++				di_flags |= XFS_DIFLAG_BARRIER;
+ 			if (vap->va_xflags & XFS_XFLAG_APPEND)
+ 				di_flags |= XFS_DIFLAG_APPEND;
+ 			if (vap->va_xflags & XFS_XFLAG_SYNC)
+Index: vserver-sources-2.0.1_2.6.15/include/asm-arm/tlb.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/asm-arm/tlb.h
++++ vserver-sources-2.0.1_2.6.15/include/asm-arm/tlb.h
+@@ -20,6 +20,7 @@
+ #include <asm/cacheflush.h>
+ #include <asm/tlbflush.h>
+ #include <asm/pgalloc.h>
++#include <linux/vs_memory.h>
+ 
+ /*
+  * TLB handling.  This allows us to remove pages from the page
+Index: vserver-sources-2.0.1_2.6.15/include/asm-arm26/tlb.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/asm-arm26/tlb.h
++++ vserver-sources-2.0.1_2.6.15/include/asm-arm26/tlb.h
+@@ -3,6 +3,7 @@
+ 
+ #include <asm/pgalloc.h>
+ #include <asm/tlbflush.h>
++#include <linux/vs_memory.h>
+ 
+ /*
+  * TLB handling.  This allows us to remove pages from the page
+Index: vserver-sources-2.0.1_2.6.15/include/asm-arm26/unistd.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/asm-arm26/unistd.h
++++ vserver-sources-2.0.1_2.6.15/include/asm-arm26/unistd.h
+@@ -304,6 +304,8 @@
+ #define __NR_mq_getsetattr		(__NR_SYSCALL_BASE+279)
+ #define __NR_waitid			(__NR_SYSCALL_BASE+280)
+ 
++#define __NR_vserver			(__NR_SYSCALL_BASE+313)
++
+ /*
+  * The following SWIs are ARM private. FIXME - make appropriate for arm26
+  */
+Index: vserver-sources-2.0.1_2.6.15/include/asm-generic/tlb.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/asm-generic/tlb.h
++++ vserver-sources-2.0.1_2.6.15/include/asm-generic/tlb.h
+@@ -15,6 +15,7 @@
+ 
+ #include <linux/config.h>
+ #include <linux/swap.h>
++#include <linux/vs_memory.h>
+ #include <asm/pgalloc.h>
+ #include <asm/tlbflush.h>
+ 
+Index: vserver-sources-2.0.1_2.6.15/include/asm-i386/elf.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/asm-i386/elf.h
++++ vserver-sources-2.0.1_2.6.15/include/asm-i386/elf.h
+@@ -71,7 +71,7 @@ typedef struct user_fxsr_struct elf_fpxr
+    the loader.  We need to make sure that it is out of the way of the program
+    that it will "exec", and that there is sufficient room for the brk.  */
+ 
+-#define ELF_ET_DYN_BASE         (TASK_SIZE / 3 * 2)
++#define ELF_ET_DYN_BASE		((TASK_UNMAPPED_BASE) * 2)
+ 
+ /* regs is struct pt_regs, pr_reg is elf_gregset_t (which is
+    now struct_user_regs, they are different) */
+Index: vserver-sources-2.0.1_2.6.15/include/asm-i386/page.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/asm-i386/page.h
++++ vserver-sources-2.0.1_2.6.15/include/asm-i386/page.h
+@@ -109,19 +109,27 @@ extern int page_is_ram(unsigned long pag
+ 
+ #endif /* __ASSEMBLY__ */
+ 
+-#ifdef __ASSEMBLY__
++#if   defined(CONFIG_SPLIT_3GB)
+ #define __PAGE_OFFSET		(0xC0000000)
+-#define __PHYSICAL_START	CONFIG_PHYSICAL_START
+-#else
+-#define __PAGE_OFFSET		(0xC0000000UL)
+-#define __PHYSICAL_START	((unsigned long)CONFIG_PHYSICAL_START)
++#elif defined(CONFIG_SPLIT_25GB)
++#define __PAGE_OFFSET		(0xA0000000)
++#elif defined(CONFIG_SPLIT_2GB)
++#define __PAGE_OFFSET		(0x80000000)
++#elif defined(CONFIG_SPLIT_15GB)
++#define __PAGE_OFFSET		(0x60000000)
++#elif defined(CONFIG_SPLIT_1GB)
++#define __PAGE_OFFSET		(0x40000000)
+ #endif
++
++#define __PHYSICAL_START	CONFIG_PHYSICAL_START
+ #define __KERNEL_START		(__PAGE_OFFSET + __PHYSICAL_START)
++#define __MAXMEM		(-__PAGE_OFFSET-__VMALLOC_RESERVE)
+ 
+ 
+ #define PAGE_OFFSET		((unsigned long)__PAGE_OFFSET)
++#define PHYSICAL_START		((unsigned long)__PHYSICAL_START)
+ #define VMALLOC_RESERVE		((unsigned long)__VMALLOC_RESERVE)
+-#define MAXMEM			(-__PAGE_OFFSET-__VMALLOC_RESERVE)
++#define MAXMEM			((unsigned long)__MAXMEM)
+ #define __pa(x)			((unsigned long)(x)-PAGE_OFFSET)
+ #define __va(x)			((void *)((unsigned long)(x)+PAGE_OFFSET))
+ #define pfn_to_kaddr(pfn)      __va((pfn) << PAGE_SHIFT)
+Index: vserver-sources-2.0.1_2.6.15/include/asm-i386/processor.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/asm-i386/processor.h
++++ vserver-sources-2.0.1_2.6.15/include/asm-i386/processor.h
+@@ -312,9 +312,10 @@ extern unsigned int mca_pentium_flag;
+ extern int bootloader_type;
+ 
+ /*
+- * User space process size: 3GB (default).
++ * User space process size: (3GB default).
+  */
+-#define TASK_SIZE	(PAGE_OFFSET)
++#define __TASK_SIZE		(__PAGE_OFFSET)
++#define TASK_SIZE		((unsigned long)__TASK_SIZE)
+ 
+ /* This decides where the kernel will search for a free chunk of vm
+  * space during mmap's.
+Index: vserver-sources-2.0.1_2.6.15/include/asm-ia64/tlb.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/asm-ia64/tlb.h
++++ vserver-sources-2.0.1_2.6.15/include/asm-ia64/tlb.h
+@@ -41,6 +41,7 @@
+ #include <linux/mm.h>
+ #include <linux/pagemap.h>
+ #include <linux/swap.h>
++#include <linux/vs_memory.h>
+ 
+ #include <asm/pgalloc.h>
+ #include <asm/processor.h>
+Index: vserver-sources-2.0.1_2.6.15/include/asm-s390/unistd.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/asm-s390/unistd.h
++++ vserver-sources-2.0.1_2.6.15/include/asm-s390/unistd.h
+@@ -255,7 +255,7 @@
+ #define __NR_clock_gettime	(__NR_timer_create+6)
+ #define __NR_clock_getres	(__NR_timer_create+7)
+ #define __NR_clock_nanosleep	(__NR_timer_create+8)
+-/* Number 263 is reserved for vserver */
++#define __NR_vserver		263
+ #define __NR_fadvise64_64	264
+ #define __NR_statfs64		265
+ #define __NR_fstatfs64		266
+Index: vserver-sources-2.0.1_2.6.15/include/asm-sparc/unistd.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/asm-sparc/unistd.h
++++ vserver-sources-2.0.1_2.6.15/include/asm-sparc/unistd.h
+@@ -283,7 +283,7 @@
+ #define __NR_timer_getoverrun	264
+ #define __NR_timer_delete	265
+ #define __NR_timer_create	266
+-/* #define __NR_vserver		267 Reserved for VSERVER */
++#define __NR_vserver		267
+ #define __NR_io_setup		268
+ #define __NR_io_destroy		269
+ #define __NR_io_submit		270
+Index: vserver-sources-2.0.1_2.6.15/include/asm-sparc64/tlb.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/asm-sparc64/tlb.h
++++ vserver-sources-2.0.1_2.6.15/include/asm-sparc64/tlb.h
+@@ -3,6 +3,7 @@
+ 
+ #include <linux/config.h>
+ #include <linux/swap.h>
++#include <linux/vs_memory.h>
+ #include <asm/pgalloc.h>
+ #include <asm/tlbflush.h>
+ #include <asm/mmu_context.h>
+Index: vserver-sources-2.0.1_2.6.15/include/asm-sparc64/unistd.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/asm-sparc64/unistd.h
++++ vserver-sources-2.0.1_2.6.15/include/asm-sparc64/unistd.h
+@@ -285,7 +285,7 @@
+ #define __NR_timer_getoverrun	264
+ #define __NR_timer_delete	265
+ #define __NR_timer_create	266
+-/* #define __NR_vserver		267 Reserved for VSERVER */
++#define __NR_vserver		267
+ #define __NR_io_setup		268
+ #define __NR_io_destroy		269
+ #define __NR_io_submit		270
+Index: vserver-sources-2.0.1_2.6.15/include/asm-x86_64/unistd.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/asm-x86_64/unistd.h
++++ vserver-sources-2.0.1_2.6.15/include/asm-x86_64/unistd.h
+@@ -532,7 +532,7 @@ __SYSCALL(__NR_tgkill, sys_tgkill)
+ #define __NR_utimes		235
+ __SYSCALL(__NR_utimes, sys_utimes)
+ #define __NR_vserver		236
+-__SYSCALL(__NR_vserver, sys_ni_syscall)
++__SYSCALL(__NR_vserver, sys_vserver)
+ #define __NR_mbind 		237
+ __SYSCALL(__NR_mbind, sys_mbind)
+ #define __NR_set_mempolicy 	238
+Index: vserver-sources-2.0.1_2.6.15/include/linux/capability.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/capability.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/capability.h
+@@ -234,6 +234,7 @@ typedef __u32 kernel_cap_t;
+    arbitrary SCSI commands */
+ /* Allow setting encryption key on loopback filesystem */
+ /* Allow setting zone reclaim policy */
++/* Allow the selection of a security context */
+ 
+ #define CAP_SYS_ADMIN        21
+ 
+@@ -287,6 +288,11 @@ typedef __u32 kernel_cap_t;
+ 
+ #define CAP_AUDIT_CONTROL    30
+ 
++/* Allow context manipulations */
++/* Allow changing context info on files */
++
++#define CAP_CONTEXT	     31
++
+ #ifdef __KERNEL__
+ /* 
+  * Bounding set
+Index: vserver-sources-2.0.1_2.6.15/include/linux/devpts_fs.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/devpts_fs.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/devpts_fs.h
+@@ -30,5 +30,7 @@ static inline void devpts_pty_kill(int n
+ 
+ #endif
+ 
++#define DEVPTS_SUPER_MAGIC	0x00001cd1
++
+ 
+ #endif /* _LINUX_DEVPTS_FS_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/ext2_fs.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/ext2_fs.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/ext2_fs.h
+@@ -192,10 +192,17 @@ struct ext2_group_desc
+ #define EXT2_NOTAIL_FL			0x00008000 /* file tail should not be merged */
+ #define EXT2_DIRSYNC_FL			0x00010000 /* dirsync behaviour (directories only) */
+ #define EXT2_TOPDIR_FL			0x00020000 /* Top of directory hierarchies*/
++#define EXT2_BARRIER_FL			0x04000000 /* Barrier for chroot() */
++#define EXT2_IUNLINK_FL			0x08000000 /* Immutable unlink */
+ #define EXT2_RESERVED_FL		0x80000000 /* reserved for ext2 lib */
+ 
++#ifdef CONFIG_VSERVER_LEGACY
++#define EXT2_FL_USER_VISIBLE		0x0803DFFF /* User visible flags */
++#define EXT2_FL_USER_MODIFIABLE		0x080380FF /* User modifiable flags */
++#else
+ #define EXT2_FL_USER_VISIBLE		0x0003DFFF /* User visible flags */
+ #define EXT2_FL_USER_MODIFIABLE		0x000380FF /* User modifiable flags */
++#endif
+ 
+ /*
+  * ioctl commands
+@@ -240,7 +247,7 @@ struct ext2_inode {
+ 		struct {
+ 			__u8	l_i_frag;	/* Fragment number */
+ 			__u8	l_i_fsize;	/* Fragment size */
+-			__u16	i_pad1;
++			__u16	l_i_xid;	/* LRU Context */
+ 			__le16	l_i_uid_high;	/* these 2 fields    */
+ 			__le16	l_i_gid_high;	/* were reserved2[0] */
+ 			__u32	l_i_reserved2;
+@@ -272,6 +279,7 @@ struct ext2_inode {
+ #define i_gid_low	i_gid
+ #define i_uid_high	osd2.linux2.l_i_uid_high
+ #define i_gid_high	osd2.linux2.l_i_gid_high
++#define i_raw_xid	osd2.linux2.l_i_xid
+ #define i_reserved2	osd2.linux2.l_i_reserved2
+ #endif
+ 
+@@ -313,8 +321,9 @@ struct ext2_inode {
+ #define EXT2_MOUNT_XATTR_USER		0x004000  /* Extended user attributes */
+ #define EXT2_MOUNT_POSIX_ACL		0x008000  /* POSIX Access Control Lists */
+ #define EXT2_MOUNT_XIP			0x010000  /* Execute in place */
+-#define EXT2_MOUNT_USRQUOTA		0x020000 /* user quota */
+-#define EXT2_MOUNT_GRPQUOTA		0x040000 /* group quota */
++#define EXT2_MOUNT_USRQUOTA		0x020000  /* user quota */
++#define EXT2_MOUNT_GRPQUOTA		0x040000  /* group quota */
++#define EXT2_MOUNT_TAGXID		(1<<24)	  /* Enable Context Tags */
+ 
+ 
+ #define clear_opt(o, opt)		o &= ~EXT2_MOUNT_##opt
+Index: vserver-sources-2.0.1_2.6.15/include/linux/ext3_fs.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/ext3_fs.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/ext3_fs.h
+@@ -185,10 +185,20 @@ struct ext3_group_desc
+ #define EXT3_NOTAIL_FL			0x00008000 /* file tail should not be merged */
+ #define EXT3_DIRSYNC_FL			0x00010000 /* dirsync behaviour (directories only) */
+ #define EXT3_TOPDIR_FL			0x00020000 /* Top of directory hierarchies*/
++#define EXT3_BARRIER_FL			0x04000000 /* Barrier for chroot() */
++#define EXT3_IUNLINK_FL			0x08000000 /* Immutable unlink */
+ #define EXT3_RESERVED_FL		0x80000000 /* reserved for ext3 lib */
+ 
++#ifdef CONFIG_VSERVER_LEGACY
++#define EXT3_FL_USER_VISIBLE		0x0803DFFF /* User visible flags */
++#define EXT3_FL_USER_MODIFIABLE		0x080380FF /* User modifiable flags */
++#else
+ #define EXT3_FL_USER_VISIBLE		0x0003DFFF /* User visible flags */
+ #define EXT3_FL_USER_MODIFIABLE		0x000380FF /* User modifiable flags */
++#endif
++#ifdef	CONFIG_VSERVER_LEGACY
++#define EXT3_IOC_SETXID			FIOC_SETXIDJ
++#endif
+ 
+ /*
+  * Inode dynamic state flags
+@@ -287,7 +297,7 @@ struct ext3_inode {
+ 		struct {
+ 			__u8	l_i_frag;	/* Fragment number */
+ 			__u8	l_i_fsize;	/* Fragment size */
+-			__u16	i_pad1;
++			__u16	l_i_xid;	/* LRU Context */
+ 			__le16	l_i_uid_high;	/* these 2 fields    */
+ 			__le16	l_i_gid_high;	/* were reserved2[0] */
+ 			__u32	l_i_reserved2;
+@@ -321,6 +331,7 @@ struct ext3_inode {
+ #define i_gid_low	i_gid
+ #define i_uid_high	osd2.linux2.l_i_uid_high
+ #define i_gid_high	osd2.linux2.l_i_gid_high
++#define i_raw_xid	osd2.linux2.l_i_xid
+ #define i_reserved2	osd2.linux2.l_i_reserved2
+ 
+ #elif defined(__GNU__)
+@@ -375,6 +386,7 @@ struct ext3_inode {
+ #define EXT3_MOUNT_QUOTA		0x80000 /* Some quota option set */
+ #define EXT3_MOUNT_USRQUOTA		0x100000 /* "old" user quota */
+ #define EXT3_MOUNT_GRPQUOTA		0x200000 /* "old" group quota */
++#define EXT3_MOUNT_TAGXID		(1<<24) /* Enable Context Tags */
+ 
+ /* Compatibility, for having both ext2_fs.h and ext3_fs.h included at once */
+ #ifndef _LINUX_EXT2_FS_H
+@@ -775,6 +787,7 @@ extern unsigned long ext3_count_free (st
+ extern int ext3_forget(handle_t *, int, struct inode *, struct buffer_head *, int);
+ extern struct buffer_head * ext3_getblk (handle_t *, struct inode *, long, int, int *);
+ extern struct buffer_head * ext3_bread (handle_t *, struct inode *, int, int, int *);
++extern int ext3_sync_flags(struct inode *inode);
+ 
+ extern void ext3_read_inode (struct inode *);
+ extern int  ext3_write_inode (struct inode *, int);
+Index: vserver-sources-2.0.1_2.6.15/include/linux/fs.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/fs.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/fs.h
+@@ -109,6 +109,8 @@ extern int dir_notify_enable;
+ #define MS_SLAVE	(1<<19)	/* change to slave */
+ #define MS_SHARED	(1<<20)	/* change to shared */
+ #define MS_POSIXACL	(1<<16)	/* VFS does not apply the umask */
++#define MS_TAGXID	(1<<24) /* tag inodes with context information */
++#define MS_XID		(1<<25) /* use specific xid for this mount */
+ #define MS_ACTIVE	(1<<30)
+ #define MS_NOUSER	(1<<31)
+ 
+@@ -136,6 +138,8 @@ extern int dir_notify_enable;
+ #define S_NOCMTIME	128	/* Do not update file c/mtime */
+ #define S_SWAPFILE	256	/* Do not truncate: swapon got its bmaps */
+ #define S_PRIVATE	512	/* Inode is fs-internal */
++#define S_BARRIER	1024	/* Barrier for chroot() */
++#define S_IUNLINK	2048	/* Immutable unlink */
+ 
+ /*
+  * Note that nosuid etc flags are inode-specific: setting some file-system
+@@ -158,14 +162,18 @@ extern int dir_notify_enable;
+ #define IS_DIRSYNC(inode)	(__IS_FLG(inode, MS_SYNCHRONOUS|MS_DIRSYNC) || \
+ 					((inode)->i_flags & (S_SYNC|S_DIRSYNC)))
+ #define IS_MANDLOCK(inode)	__IS_FLG(inode, MS_MANDLOCK)
++#define IS_TAGXID(inode)	__IS_FLG(inode, MS_TAGXID)
+ 
+ #define IS_NOQUOTA(inode)	((inode)->i_flags & S_NOQUOTA)
+ #define IS_APPEND(inode)	((inode)->i_flags & S_APPEND)
+ #define IS_IMMUTABLE(inode)	((inode)->i_flags & S_IMMUTABLE)
++#define IS_IUNLINK(inode)	((inode)->i_flags & S_IUNLINK)
++#define IS_IXORUNLINK(inode)	((IS_IUNLINK(inode) ? S_IMMUTABLE : 0) ^ IS_IMMUTABLE(inode))
+ #define IS_NOATIME(inode)	(__IS_FLG(inode, MS_NOATIME) || ((inode)->i_flags & S_NOATIME))
+ #define IS_NODIRATIME(inode)	__IS_FLG(inode, MS_NODIRATIME)
+ #define IS_POSIXACL(inode)	__IS_FLG(inode, MS_POSIXACL)
+ 
++#define IS_BARRIER(inode)	(S_ISDIR((inode)->i_mode) && ((inode)->i_flags & S_BARRIER))
+ #define IS_DEADDIR(inode)	((inode)->i_flags & S_DEAD)
+ #define IS_NOCMTIME(inode)	((inode)->i_flags & S_NOCMTIME)
+ #define IS_SWAPFILE(inode)	((inode)->i_flags & S_SWAPFILE)
+@@ -269,6 +277,7 @@ typedef void (dio_iodone_t)(struct kiocb
+ #define ATTR_KILL_SUID	2048
+ #define ATTR_KILL_SGID	4096
+ #define ATTR_FILE	8192
++#define ATTR_XID	16384
+ 
+ /*
+  * This is the Inode Attributes structure, used for notify_change().  It
+@@ -284,6 +293,7 @@ struct iattr {
+ 	umode_t		ia_mode;
+ 	uid_t		ia_uid;
+ 	gid_t		ia_gid;
++	xid_t		ia_xid;
+ 	loff_t		ia_size;
+ 	struct timespec	ia_atime;
+ 	struct timespec	ia_mtime;
+@@ -297,6 +307,9 @@ struct iattr {
+ 	struct file	*ia_file;
+ };
+ 
++#define ATTR_FLAG_BARRIER	512	/* Barrier for chroot() */
++#define ATTR_FLAG_IUNLINK	1024	/* Immutable unlink */
++
+ /*
+  * Includes for diskquotas.
+  */
+@@ -442,6 +455,7 @@ struct inode {
+ 	unsigned int		i_nlink;
+ 	uid_t			i_uid;
+ 	gid_t			i_gid;
++	xid_t			i_xid;
+ 	dev_t			i_rdev;
+ 	loff_t			i_size;
+ 	struct timespec		i_atime;
+@@ -604,6 +618,7 @@ struct file {
+ 	struct fown_struct	f_owner;
+ 	unsigned int		f_uid, f_gid;
+ 	struct file_ra_state	f_ra;
++	xid_t			f_xid;
+ 
+ 	unsigned long		f_version;
+ 	void			*f_security;
+@@ -683,6 +698,7 @@ struct file_lock {
+ 	unsigned char fl_type;
+ 	loff_t fl_start;
+ 	loff_t fl_end;
++	xid_t fl_xid;
+ 
+ 	struct fasync_struct *	fl_fasync; /* for lease break notifications */
+ 	unsigned long fl_break_time;	/* for nonblocking lease breaks */
+@@ -1019,6 +1035,7 @@ struct inode_operations {
+ 	ssize_t (*getxattr) (struct dentry *, const char *, void *, size_t);
+ 	ssize_t (*listxattr) (struct dentry *, char *, size_t);
+ 	int (*removexattr) (struct dentry *, const char *);
++	int (*sync_flags) (struct inode *);
+ };
+ 
+ struct seq_file;
+@@ -1653,6 +1670,7 @@ extern int dcache_dir_open(struct inode 
+ extern int dcache_dir_close(struct inode *, struct file *);
+ extern loff_t dcache_dir_lseek(struct file *, loff_t, int);
+ extern int dcache_readdir(struct file *, void *, filldir_t);
++extern int dcache_readdir_filter(struct file *, void *, filldir_t, int (*)(struct dentry *));
+ extern int simple_getattr(struct vfsmount *, struct dentry *, struct kstat *);
+ extern int simple_statfs(struct super_block *, struct kstatfs *);
+ extern int simple_link(struct dentry *, struct inode *, struct dentry *);
+Index: vserver-sources-2.0.1_2.6.15/include/linux/init_task.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/init_task.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/init_task.h
+@@ -121,6 +121,10 @@ extern struct group_info init_groups;
+ 	.journal_info	= NULL,						\
+ 	.cpu_timers	= INIT_CPU_TIMERS(tsk.cpu_timers),		\
+ 	.fs_excl	= ATOMIC_INIT(0),				\
++	.xid		= 0,						\
++	.vx_info	= NULL,						\
++	.nid		= 0,						\
++	.nx_info	= NULL,						\
+ }
+ 
+ 
+Index: vserver-sources-2.0.1_2.6.15/include/linux/ip.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/ip.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/ip.h
+@@ -139,6 +139,7 @@ struct inet_sock {
+ 	/* Socket demultiplex comparisons on incoming packets. */
+ 	__u32			daddr;		/* Foreign IPv4 addr */
+ 	__u32			rcv_saddr;	/* Bound local IPv4 addr */
++	__u32			rcv_saddr2;	/* Second bound ipv4 addr, for ipv4root */
+ 	__u16			dport;		/* Destination port */
+ 	__u16			num;		/* Local port */
+ 	__u32			saddr;		/* Sending source */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/ipc.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/ipc.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/ipc.h
+@@ -66,6 +66,7 @@ struct kern_ipc_perm
+ 	mode_t		mode; 
+ 	unsigned long	seq;
+ 	void		*security;
++	xid_t		xid;
+ };
+ 
+ #endif /* __KERNEL__ */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/kernel.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/kernel.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/kernel.h
+@@ -17,6 +17,7 @@
+ #include <asm/bug.h>
+ 
+ extern const char linux_banner[];
++extern const char vx_linux_banner[];
+ 
+ #define INT_MAX		((int)(~0U>>1))
+ #define INT_MIN		(-INT_MAX - 1)
+Index: vserver-sources-2.0.1_2.6.15/include/linux/major.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/major.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/major.h
+@@ -15,6 +15,7 @@
+ #define HD_MAJOR		IDE0_MAJOR
+ #define PTY_SLAVE_MAJOR		3
+ #define TTY_MAJOR		4
++#define VROOT_MAJOR		4
+ #define TTYAUX_MAJOR		5
+ #define LP_MAJOR		6
+ #define VCS_MAJOR		7
+Index: vserver-sources-2.0.1_2.6.15/include/linux/mount.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/mount.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/mount.h
+@@ -23,6 +23,7 @@
+ #define MNT_SHARED	0x10	/* if the vfsmount is a shared mount */
+ #define MNT_UNBINDABLE	0x20	/* if the vfsmount is a unbindable mount */
+ #define MNT_PNODE_MASK	0x30	/* propogation flag mask */
++#define MNT_XID		0x100
+ 
+ struct vfsmount {
+ 	struct list_head mnt_hash;
+@@ -44,6 +45,7 @@ struct vfsmount {
+ 	struct vfsmount *mnt_master;	/* slave is on master->mnt_slave_list */
+ 	struct namespace *mnt_namespace; /* containing namespace */
+ 	int mnt_pinned;
++	xid_t mnt_xid;			/* xid tagging used for vfsmount */
+ };
+ 
+ static inline struct vfsmount *mntget(struct vfsmount *mnt)
+Index: vserver-sources-2.0.1_2.6.15/include/linux/namespace.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/namespace.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/namespace.h
+@@ -15,6 +15,7 @@ struct namespace {
+ 
+ extern int copy_namespace(int, struct task_struct *);
+ extern void __put_namespace(struct namespace *namespace);
++extern void umount_unused(struct vfsmount *, struct fs_struct *);
+ 
+ static inline void put_namespace(struct namespace *namespace)
+ {
+Index: vserver-sources-2.0.1_2.6.15/include/linux/net.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/net.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/net.h
+@@ -62,6 +62,7 @@ typedef enum {
+ #define SOCK_ASYNC_WAITDATA	1
+ #define SOCK_NOSPACE		2
+ #define SOCK_PASSCRED		3
++#define SOCK_USER_SOCKET	4
+ 
+ #ifndef ARCH_HAS_SOCKET_TYPES
+ /**
+Index: vserver-sources-2.0.1_2.6.15/include/linux/nfs_mount.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/nfs_mount.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/nfs_mount.h
+@@ -61,6 +61,7 @@ struct nfs_mount_data {
+ #define NFS_MOUNT_NOACL		0x0800	/* 4 */
+ #define NFS_MOUNT_STRICTLOCK	0x1000	/* reserved for NFSv4 */
+ #define NFS_MOUNT_SECFLAVOUR	0x2000	/* 5 */
++#define NFS_MOUNT_TAGXID	0x8000	/* tagxid */
+ #define NFS_MOUNT_FLAGMASK	0xFFFF
+ 
+ #endif
+Index: vserver-sources-2.0.1_2.6.15/include/linux/percpu.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/percpu.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/percpu.h
+@@ -8,7 +8,7 @@
+ 
+ /* Enough to cover all DEFINE_PER_CPUs in kernel, including modules. */
+ #ifndef PERCPU_ENOUGH_ROOM
+-#define PERCPU_ENOUGH_ROOM 32768
++#define PERCPU_ENOUGH_ROOM 65536
+ #endif
+ 
+ /* Must be an lvalue. */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/proc_fs.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/proc_fs.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/proc_fs.h
+@@ -55,6 +55,7 @@ struct proc_dir_entry {
+ 	nlink_t nlink;
+ 	uid_t uid;
+ 	gid_t gid;
++	int vx_flags;
+ 	unsigned long size;
+ 	struct inode_operations * proc_iops;
+ 	struct file_operations * proc_fops;
+@@ -243,9 +244,11 @@ extern void kclist_add(struct kcore_list
+ struct proc_inode {
+ 	struct task_struct *task;
+ 	int type;
++	int vx_flags;
+ 	union {
+ 		int (*proc_get_link)(struct inode *, struct dentry **, struct vfsmount **);
+ 		int (*proc_read)(struct task_struct *task, char *page);
++		int (*proc_vid_read)(int vid, char *page);
+ 	} op;
+ 	struct proc_dir_entry *pde;
+ 	struct inode vfs_inode;
+Index: vserver-sources-2.0.1_2.6.15/include/linux/ptrace.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/ptrace.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/ptrace.h
+@@ -77,6 +77,8 @@
+ 
+ #include <linux/compiler.h>		/* For unlikely.  */
+ #include <linux/sched.h>		/* For struct task_struct.  */
++#include <linux/vs_cvirt.h>
++#include <linux/vs_context.h>
+ 
+ 
+ extern long arch_ptrace(struct task_struct *child, long request, long addr, long data);
+Index: vserver-sources-2.0.1_2.6.15/include/linux/reiserfs_fs.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/reiserfs_fs.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/reiserfs_fs.h
+@@ -829,6 +829,18 @@ struct stat_data_v1 {
+ #define REISERFS_COMPR_FL     EXT2_COMPR_FL
+ #define REISERFS_NOTAIL_FL    EXT2_NOTAIL_FL
+ 
++/* unfortunately reiserfs sdattr is only 16 bit */
++#define REISERFS_BARRIER_FL   (EXT2_BARRIER_FL >> 16)
++#define REISERFS_IUNLINK_FL   (EXT2_IUNLINK_FL >> 16)
++
++#ifdef CONFIG_VSERVER_LEGACY
++#define REISERFS_FL_USER_VISIBLE	(REISERFS_IUNLINK_FL|0x80FF)
++#define REISERFS_FL_USER_MODIFIABLE	(REISERFS_IUNLINK_FL|0x80FF)
++#else
++#define REISERFS_FL_USER_VISIBLE	0x80FF
++#define REISERFS_FL_USER_MODIFIABLE	0x80FF
++#endif
++
+ /* persistent flags that file inherits from the parent directory */
+ #define REISERFS_INHERIT_MASK ( REISERFS_IMMUTABLE_FL |	\
+ 				REISERFS_SYNC_FL |	\
+@@ -1904,6 +1916,7 @@ static inline void reiserfs_update_sd(st
+ void sd_attrs_to_i_attrs(__u16 sd_attrs, struct inode *inode);
+ void i_attrs_to_sd_attrs(struct inode *inode, __u16 * sd_attrs);
+ int reiserfs_setattr(struct dentry *dentry, struct iattr *attr);
++int reiserfs_sync_flags(struct inode *inode);
+ 
+ /* namei.c */
+ void set_de_name_and_namelen(struct reiserfs_dir_entry *de);
+Index: vserver-sources-2.0.1_2.6.15/include/linux/reiserfs_fs_sb.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/reiserfs_fs_sb.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/reiserfs_fs_sb.h
+@@ -457,6 +457,7 @@ enum reiserfs_mount_options {
+ 	REISERFS_POSIXACL,
+ 	REISERFS_BARRIER_NONE,
+ 	REISERFS_BARRIER_FLUSH,
++	REISERFS_TAGXID,
+ 
+ 	/* Actions on error */
+ 	REISERFS_ERROR_PANIC,
+Index: vserver-sources-2.0.1_2.6.15/include/linux/sched.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/sched.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/sched.h
+@@ -34,6 +34,7 @@
+ #include <linux/percpu.h>
+ #include <linux/topology.h>
+ #include <linux/seccomp.h>
++#include <linux/vs_base.h>
+ 
+ #include <linux/auxvec.h>	/* For AT_VECTOR_SIZE */
+ 
+@@ -127,6 +128,7 @@ extern unsigned long nr_iowait(void);
+ #define EXIT_DEAD		32
+ /* in tsk->state again */
+ #define TASK_NONINTERACTIVE	64
++#define TASK_ONHOLD		128
+ 
+ #define __set_task_state(tsk, state_value)		\
+ 	do { (tsk)->state = (state_value); } while (0)
+@@ -255,23 +257,27 @@ extern void arch_unmap_area_topdown(stru
+  * so must be incremented atomically.
+  */
+ #ifdef ATOMIC64_INIT
+-#define set_mm_counter(mm, member, value) atomic64_set(&(mm)->_##member, value)
+-#define get_mm_counter(mm, member) ((unsigned long)atomic64_read(&(mm)->_##member))
+-#define add_mm_counter(mm, member, value) atomic64_add(value, &(mm)->_##member)
+-#define inc_mm_counter(mm, member) atomic64_inc(&(mm)->_##member)
+-#define dec_mm_counter(mm, member) atomic64_dec(&(mm)->_##member)
+ typedef atomic64_t mm_counter_t;
++#define __set_mm_counter(mm, member, value) atomic64_set(&(mm)->_##member, value)
++#define set_mm_counter(mm, member, value) vx_ ## member ## pages64_sub((mm), \
++	(get_mm_counter(mm, member) - value))
++#define get_mm_counter(mm, member) ((unsigned long)atomic64_read(&(mm)->_##member))
++#define add_mm_counter(mm, member, value) vx_ ## member ## pages64_add((mm), (value))
++#define inc_mm_counter(mm, member) vx_ ## member ## pages64_inc((mm))
++#define dec_mm_counter(mm, member) vx_ ## member ## pages64_dec((mm))
+ #else /* !ATOMIC64_INIT */
+ /*
+  * The counters wrap back to 0 at 2^32 * PAGE_SIZE,
+  * that is, at 16TB if using 4kB page size.
+  */
+-#define set_mm_counter(mm, member, value) atomic_set(&(mm)->_##member, value)
+-#define get_mm_counter(mm, member) ((unsigned long)atomic_read(&(mm)->_##member))
+-#define add_mm_counter(mm, member, value) atomic_add(value, &(mm)->_##member)
+-#define inc_mm_counter(mm, member) atomic_inc(&(mm)->_##member)
+-#define dec_mm_counter(mm, member) atomic_dec(&(mm)->_##member)
+ typedef atomic_t mm_counter_t;
++#define __set_mm_counter(mm, member, value) atomic_set(&(mm)->_##member, value)
++#define set_mm_counter(mm, member, value) vx_ ## member ## pages_sub((mm), \
++	(get_mm_counter(mm, member) - value))
++#define get_mm_counter(mm, member) ((unsigned long)atomic_read(&(mm)->_##member))
++#define add_mm_counter(mm, member, value) vx_ ## member ## pages_add((mm), (value))
++#define inc_mm_counter(mm, member) vx_ ## member ## pages_inc((mm))
++#define dec_mm_counter(mm, member) vx_ ## member ## pages_dec((mm))
+ #endif /* !ATOMIC64_INIT */
+ 
+ #else  /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */
+@@ -279,12 +285,14 @@ typedef atomic_t mm_counter_t;
+  * The mm counters are protected by its page_table_lock,
+  * so can be incremented directly.
+  */
+-#define set_mm_counter(mm, member, value) (mm)->_##member = (value)
+-#define get_mm_counter(mm, member) ((mm)->_##member)
+-#define add_mm_counter(mm, member, value) (mm)->_##member += (value)
+-#define inc_mm_counter(mm, member) (mm)->_##member++
+-#define dec_mm_counter(mm, member) (mm)->_##member--
+ typedef unsigned long mm_counter_t;
++#define __set_mm_counter(mm, member, value) (mm)->_##member = (value)
++#define set_mm_counter(mm, member, value) vx_ ## member ## pages_sub((mm), \
++	(get_mm_counter(mm, member) - value))
++#define get_mm_counter(mm, member) ((mm)->_##member)
++#define add_mm_counter(mm, member, value) vx_ ## member ## pages_add((mm), (value))
++#define inc_mm_counter(mm, member) vx_ ## member ## pages_inc((mm))
++#define dec_mm_counter(mm, member) vx_ ## member ## pages_dec((mm))
+ 
+ #endif /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */
+ 
+@@ -345,6 +353,7 @@ struct mm_struct {
+ 
+ 	/* Architecture-specific MM context */
+ 	mm_context_t context;
++	struct vx_info *mm_vx_info;
+ 
+ 	/* Token based thrashing protection. */
+ 	unsigned long swap_token_time;
+@@ -515,9 +524,10 @@ struct user_struct {
+ 	/* Hash table maintenance information */
+ 	struct list_head uidhash_list;
+ 	uid_t uid;
++	xid_t xid;
+ };
+ 
+-extern struct user_struct *find_user(uid_t);
++extern struct user_struct *find_user(xid_t, uid_t);
+ 
+ extern struct user_struct root_user;
+ #define INIT_USER (&root_user)
+@@ -812,6 +822,14 @@ struct task_struct {
+ 	struct audit_context *audit_context;
+ 	seccomp_t seccomp;
+ 
++/* vserver context data */
++	xid_t xid;
++	struct vx_info *vx_info;
++
++/* vserver network data */
++	nid_t nid;
++	struct nx_info *nx_info;
++
+ /* Thread group tracking */
+    	u32 parent_exec_id;
+    	u32 self_exec_id;
+@@ -1000,13 +1018,19 @@ extern struct task_struct init_task;
+ 
+ extern struct   mm_struct init_mm;
+ 
+-#define find_task_by_pid(nr)	find_task_by_pid_type(PIDTYPE_PID, nr)
++
++#define find_task_by_real_pid(nr) \
++	find_task_by_pid_type(PIDTYPE_PID, nr)
++#define find_task_by_pid(nr) \
++	find_task_by_pid_type(PIDTYPE_PID, \
++		vx_rmap_pid(nr))
++
+ extern struct task_struct *find_task_by_pid_type(int type, int pid);
+ extern void set_special_pids(pid_t session, pid_t pgrp);
+ extern void __set_special_pids(pid_t session, pid_t pgrp);
+ 
+ /* per-UID process charging. */
+-extern struct user_struct * alloc_uid(uid_t);
++extern struct user_struct * alloc_uid(xid_t, uid_t);
+ static inline struct user_struct *get_uid(struct user_struct *u)
+ {
+ 	atomic_inc(&u->__count);
+@@ -1105,15 +1129,28 @@ static inline int sas_ss_flags(unsigned 
+ #ifdef CONFIG_SECURITY
+ /* code is in security.c */
+ extern int capable(int cap);
++extern int vx_capable(int cap, int ccap);
+ #else
+ static inline int capable(int cap)
+ {
++	if (vx_check_bit(VXC_CAP_MASK, cap) && !vx_mcaps(1L << cap))
++		return 0;
+ 	if (cap_raised(current->cap_effective, cap)) {
+ 		current->flags |= PF_SUPERPRIV;
+ 		return 1;
+ 	}
+ 	return 0;
+ }
++
++static inline int vx_capable(int cap, int ccap)
++{
++	if (cap_raised(current->cap_effective, cap) &&
++		vx_ccaps(ccap)) {
++		current->flags |= PF_SUPERPRIV;
++		return 1;
++	}
++	return 0;
++}
+ #endif
+ 
+ /*
+Index: vserver-sources-2.0.1_2.6.15/include/linux/shmem_fs.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/shmem_fs.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/shmem_fs.h
+@@ -8,6 +8,9 @@
+ 
+ #define SHMEM_NR_DIRECT 16
+ 
++#define TMPFS_SUPER_MAGIC	0x01021994
++
++
+ struct shmem_inode_info {
+ 	spinlock_t		lock;
+ 	unsigned long		flags;
+Index: vserver-sources-2.0.1_2.6.15/include/linux/stat.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/stat.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/stat.h
+@@ -63,6 +63,7 @@ struct kstat {
+ 	unsigned int	nlink;
+ 	uid_t		uid;
+ 	gid_t		gid;
++	xid_t		xid;
+ 	dev_t		rdev;
+ 	loff_t		size;
+ 	struct timespec  atime;
+Index: vserver-sources-2.0.1_2.6.15/include/linux/sunrpc/auth.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/sunrpc/auth.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/sunrpc/auth.h
+@@ -28,6 +28,7 @@
+ struct auth_cred {
+ 	uid_t	uid;
+ 	gid_t	gid;
++	xid_t	xid;
+ 	struct group_info *group_info;
+ };
+ 
+Index: vserver-sources-2.0.1_2.6.15/include/linux/sunrpc/clnt.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/sunrpc/clnt.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/sunrpc/clnt.h
+@@ -52,7 +52,8 @@ struct rpc_clnt {
+ 				cl_chatty   : 1,/* be verbose */
+ 				cl_autobind : 1,/* use getport() */
+ 				cl_oneshot  : 1,/* dispose after use */
+-				cl_dead     : 1;/* abandoned */
++				cl_dead     : 1,/* abandoned */
++				cl_tagxid   : 1;/* do xid tagging */
+ 
+ 	struct rpc_rtt *	cl_rtt;		/* RTO estimator data */
+ 	struct rpc_portmap *	cl_pmap;	/* port mapping */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/sysctl.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/sysctl.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/sysctl.h
+@@ -150,6 +150,7 @@ enum
+ #ifdef CONFIG_ALPHA_UAC_SYSCTL
+ 	KERN_UAC_POLICY=72,	/* int: Alpha unaligned access control policy flags */
+ #endif /* CONFIG_ALPHA_UAC_SYSCTL */
++	KERN_VSHELPER=72,	/* string: path to vshelper policy agent */
+ };
+ 
+ 
+@@ -890,6 +891,9 @@ typedef int ctl_handler (ctl_table *tabl
+ typedef int proc_handler (ctl_table *ctl, int write, struct file * filp,
+ 			  void __user *buffer, size_t *lenp, loff_t *ppos);
+ 
++typedef int virt_handler (struct ctl_table *ctl, int write, xid_t xid,
++			  void **datap, size_t *lenp);
++
+ extern int proc_dostring(ctl_table *, int, struct file *,
+ 			 void __user *, size_t *, loff_t *);
+ extern int proc_dointvec(ctl_table *, int, struct file *,
+@@ -971,6 +975,7 @@ struct ctl_table 
+ 	mode_t mode;
+ 	ctl_table *child;
+ 	proc_handler *proc_handler;	/* Callback for text formatting */
++	virt_handler *virt_handler;	/* Context virtualization */
+ 	ctl_handler *strategy;		/* Callback function for all r/w */
+ 	struct proc_dir_entry *de;	/* /proc control block */
+ 	void *extra1;
+Index: vserver-sources-2.0.1_2.6.15/include/linux/sysfs.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/sysfs.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/sysfs.h
+@@ -12,6 +12,8 @@
+ 
+ #include <asm/atomic.h>
+ 
++#define SYSFS_SUPER_MAGIC	0x62656572
++
+ struct kobject;
+ struct module;
+ 
+Index: vserver-sources-2.0.1_2.6.15/include/linux/types.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/linux/types.h
++++ vserver-sources-2.0.1_2.6.15/include/linux/types.h
+@@ -37,6 +37,8 @@ typedef __kernel_uid32_t	uid_t;
+ typedef __kernel_gid32_t	gid_t;
+ typedef __kernel_uid16_t        uid16_t;
+ typedef __kernel_gid16_t        gid16_t;
++typedef unsigned int		xid_t;
++typedef unsigned int		nid_t;
+ 
+ #ifdef CONFIG_UID16
+ /* This is defined by include/asm-{arch}/posix_types.h */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vroot.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vroot.h
+@@ -0,0 +1,51 @@
++
++/*
++ * include/linux/vroot.h
++ *
++ * written by Herbert Pötzl, 9/11/2002
++ * ported to 2.6 by Herbert Pötzl, 30/12/2004
++ *
++ * Copyright (C) 2002-2005 by Herbert Pötzl.
++ * Redistribution of this file is permitted under the
++ * GNU General Public License.
++ */
++
++#ifndef _LINUX_VROOT_H
++#define _LINUX_VROOT_H
++
++
++#ifdef __KERNEL__
++
++/* Possible states of device */
++enum {
++	Vr_unbound,
++	Vr_bound,
++};
++
++struct vroot_device {
++	int		vr_number;
++	int		vr_refcnt;
++
++	struct semaphore	vr_ctl_mutex;
++	struct block_device    *vr_device;
++	int			vr_state;
++};
++
++
++typedef struct block_device *(vroot_grb_func)(struct block_device *);
++
++extern int register_vroot_grb(vroot_grb_func *);
++extern int unregister_vroot_grb(vroot_grb_func *);
++
++#endif /* __KERNEL__ */
++
++#define MAX_VROOT_DEFAULT	8
++
++/*
++ * IOCTL commands --- we will commandeer 0x56 ('V')
++ */
++
++#define VROOT_SET_DEV		0x5600
++#define VROOT_CLR_DEV		0x5601
++
++#endif /* _LINUX_VROOT_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vs_base.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vs_base.h
+@@ -0,0 +1,104 @@
++#ifndef _VX_VS_BASE_H
++#define _VX_VS_BASE_H
++
++
++#include "vserver/context.h"
++
++
++#define vx_task_xid(t)	((t)->xid)
++
++#define vx_current_xid() vx_task_xid(current)
++
++#define vx_check(c,m)	__vx_check(vx_current_xid(),c,m)
++
++#define vx_weak_check(c,m)	((m) ? vx_check(c,m) : 1)
++
++
++/*
++ * check current context for ADMIN/WATCH and
++ * optionally agains supplied argument
++ */
++static inline int __vx_check(xid_t cid, xid_t id, unsigned int mode)
++{
++	if (mode & VX_ARG_MASK) {
++		if ((mode & VX_IDENT) &&
++			(id == cid))
++			return 1;
++	}
++	if (mode & VX_ATR_MASK) {
++		if ((mode & VX_DYNAMIC) &&
++			(id >= MIN_D_CONTEXT) &&
++			(id <= MAX_S_CONTEXT))
++			return 1;
++		if ((mode & VX_STATIC) &&
++			(id > 1) && (id < MIN_D_CONTEXT))
++			return 1;
++	}
++	return (((mode & VX_ADMIN) && (cid == 0)) ||
++		((mode & VX_WATCH) && (cid == 1)) ||
++		((mode & VX_HOSTID) && (id == 0)));
++}
++
++
++#define __vx_state(v)	((v) ? ((v)->vx_state) : 0)
++
++#define vx_info_state(v,m)	(__vx_state(v) & (m))
++
++
++/* generic flag merging */
++
++#define vx_check_flags(v,m,f)	(((v) & (m)) ^ (f))
++
++#define vx_mask_flags(v,f,m)	(((v) & ~(m)) | ((f) & (m)))
++
++#define vx_mask_mask(v,f,m)	(((v) & ~(m)) | ((v) & (f) & (m)))
++
++#define vx_check_bit(v,n)	((v) & (1LL << (n)))
++
++
++/* context flags */
++
++#define __vx_flags(v)	((v) ? (v)->vx_flags : 0)
++
++#define vx_current_flags()	__vx_flags(current->vx_info)
++
++#define vx_info_flags(v,m,f) \
++	vx_check_flags(__vx_flags(v),(m),(f))
++
++#define task_vx_flags(t,m,f) \
++	((t) && vx_info_flags((t)->vx_info, (m), (f)))
++
++#define vx_flags(m,f)	vx_info_flags(current->vx_info,(m),(f))
++
++
++/* context caps */
++
++#define __vx_ccaps(v)	((v) ? (v)->vx_ccaps : 0)
++
++#define vx_current_ccaps()	__vx_ccaps(current->vx_info)
++
++#define vx_info_ccaps(v,c)	(__vx_ccaps(v) & (c))
++
++#define vx_ccaps(c)	vx_info_ccaps(current->vx_info,(c))
++
++
++#define __vx_mcaps(v)	((v) ? (v)->vx_ccaps >> 32UL : ~0 )
++
++#define vx_info_mcaps(v,c)	(__vx_mcaps(v) & (c))
++
++#define vx_mcaps(c)	vx_info_mcaps(current->vx_info,(c))
++
++
++#define vx_current_bcaps() \
++	(((current->vx_info) && !vx_flags(VXF_STATE_SETUP, 0)) ? \
++	current->vx_info->vx_bcaps : cap_bset)
++
++
++#define vx_current_initpid(n) \
++	(current->vx_info && \
++	(current->vx_info->vx_initpid == (n)))
++
++
++#else
++#warning duplicate inclusion
++#endif
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vs_context.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vs_context.h
+@@ -0,0 +1,171 @@
++#ifndef _VX_VS_CONTEXT_H
++#define _VX_VS_CONTEXT_H
++
++
++#include <linux/kernel.h>
++#include "vserver/debug.h"
++
++
++#define get_vx_info(i)	__get_vx_info(i,__FILE__,__LINE__)
++
++static inline struct vx_info *__get_vx_info(struct vx_info *vxi,
++	const char *_file, int _line)
++{
++	if (!vxi)
++		return NULL;
++
++	vxlprintk(VXD_CBIT(xid, 2), "get_vx_info(%p[#%d.%d])",
++		vxi, vxi?vxi->vx_id:0, vxi?atomic_read(&vxi->vx_usecnt):0,
++		_file, _line);
++	vxh_get_vx_info(vxi);
++
++	atomic_inc(&vxi->vx_usecnt);
++	return vxi;
++}
++
++
++extern void free_vx_info(struct vx_info *);
++
++#define put_vx_info(i)	__put_vx_info(i,__FILE__,__LINE__)
++
++static inline void __put_vx_info(struct vx_info *vxi,
++	const char *_file, int _line)
++{
++	if (!vxi)
++		return;
++
++	vxlprintk(VXD_CBIT(xid, 2), "put_vx_info(%p[#%d.%d])",
++		vxi, vxi?vxi->vx_id:0, vxi?atomic_read(&vxi->vx_usecnt):0,
++		_file, _line);
++	vxh_put_vx_info(vxi);
++
++	if (atomic_dec_and_test(&vxi->vx_usecnt))
++		free_vx_info(vxi);
++}
++
++
++#define init_vx_info(p,i) __init_vx_info(p,i,__FILE__,__LINE__)
++
++static inline void __init_vx_info(struct vx_info **vxp, struct vx_info *vxi,
++	const char *_file, int _line)
++{
++	if (vxi) {
++		vxlprintk(VXD_CBIT(xid, 3),
++			"init_vx_info(%p[#%d.%d])",
++			vxi, vxi?vxi->vx_id:0,
++			vxi?atomic_read(&vxi->vx_usecnt):0,
++			_file, _line);
++		vxh_init_vx_info(vxi, vxp);
++
++		atomic_inc(&vxi->vx_usecnt);
++	}
++	*vxp = vxi;
++}
++
++
++#define set_vx_info(p,i) __set_vx_info(p,i,__FILE__,__LINE__)
++
++static inline void __set_vx_info(struct vx_info **vxp, struct vx_info *vxi,
++	const char *_file, int _line)
++{
++	struct vx_info *vxo;
++
++	if (!vxi)
++		return;
++
++	vxlprintk(VXD_CBIT(xid, 3), "set_vx_info(%p[#%d.%d])",
++		vxi, vxi?vxi->vx_id:0,
++		vxi?atomic_read(&vxi->vx_usecnt):0,
++		_file, _line);
++	vxh_set_vx_info(vxi, vxp);
++
++	atomic_inc(&vxi->vx_usecnt);
++	vxo = xchg(vxp, vxi);
++	BUG_ON(vxo);
++}
++
++
++#define clr_vx_info(p) __clr_vx_info(p,__FILE__,__LINE__)
++
++static inline void __clr_vx_info(struct vx_info **vxp,
++	const char *_file, int _line)
++{
++	struct vx_info *vxo;
++
++	vxo = xchg(vxp, NULL);
++	if (!vxo)
++		return;
++
++	vxlprintk(VXD_CBIT(xid, 3), "clr_vx_info(%p[#%d.%d])",
++		vxo, vxo?vxo->vx_id:0,
++		vxo?atomic_read(&vxo->vx_usecnt):0,
++		_file, _line);
++	vxh_clr_vx_info(vxo, vxp);
++
++	if (atomic_dec_and_test(&vxo->vx_usecnt))
++		free_vx_info(vxo);
++}
++
++
++#define claim_vx_info(v,p) __claim_vx_info(v,p,__FILE__,__LINE__)
++
++static inline void __claim_vx_info(struct vx_info *vxi,
++	struct task_struct *task, const char *_file, int _line)
++{
++	vxlprintk(VXD_CBIT(xid, 3), "claim_vx_info(%p[#%d.%d.%d]) %p",
++		vxi, vxi?vxi->vx_id:0,
++		vxi?atomic_read(&vxi->vx_usecnt):0,
++		vxi?atomic_read(&vxi->vx_tasks):0,
++		task, _file, _line);
++	vxh_claim_vx_info(vxi, task);
++
++	atomic_inc(&vxi->vx_tasks);
++}
++
++
++extern void unhash_vx_info(struct vx_info *);
++
++#define release_vx_info(v,p) __release_vx_info(v,p,__FILE__,__LINE__)
++
++static inline void __release_vx_info(struct vx_info *vxi,
++	struct task_struct *task, const char *_file, int _line)
++{
++	vxlprintk(VXD_CBIT(xid, 3), "release_vx_info(%p[#%d.%d.%d]) %p",
++		vxi, vxi?vxi->vx_id:0,
++		vxi?atomic_read(&vxi->vx_usecnt):0,
++		vxi?atomic_read(&vxi->vx_tasks):0,
++		task, _file, _line);
++	vxh_release_vx_info(vxi, task);
++
++	might_sleep();
++
++	if (atomic_dec_and_test(&vxi->vx_tasks))
++		unhash_vx_info(vxi);
++}
++
++
++#define task_get_vx_info(p)	__task_get_vx_info(p,__FILE__,__LINE__)
++
++static __inline__ struct vx_info *__task_get_vx_info(struct task_struct *p,
++	const char *_file, int _line)
++{
++	struct vx_info *vxi;
++
++	task_lock(p);
++	vxlprintk(VXD_CBIT(xid, 5), "task_get_vx_info(%p)",
++		p, _file, _line);
++	vxi = __get_vx_info(p->vx_info, _file, _line);
++	task_unlock(p);
++	return vxi;
++}
++
++
++static inline void __wakeup_vx_info(struct vx_info *vxi)
++{
++	if (waitqueue_active(&vxi->vx_wait))
++		wake_up_interruptible(&vxi->vx_wait);
++}
++
++#else
++#warning duplicate inclusion
++#endif
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vs_cvirt.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vs_cvirt.h
+@@ -0,0 +1,109 @@
++#ifndef _VX_VS_CVIRT_H
++#define _VX_VS_CVIRT_H
++
++
++#include "vserver/cvirt.h"
++#include "vserver/debug.h"
++
++
++/* utsname virtualization */
++
++static inline struct new_utsname *vx_new_utsname(void)
++{
++	if (current->vx_info)
++		return &current->vx_info->cvirt.utsname;
++	return &system_utsname;
++}
++
++#define vx_new_uts(x)		((vx_new_utsname())->x)
++
++
++/* pid faking stuff */
++
++
++#define vx_info_map_pid(v,p) \
++	__vx_info_map_pid((v), (p), __FUNC__, __FILE__, __LINE__)
++#define vx_info_map_tgid(v,p)  vx_info_map_pid(v,p)
++#define vx_map_pid(p)	vx_info_map_pid(current->vx_info, p)
++#define vx_map_tgid(p) vx_map_pid(p)
++
++static inline int __vx_info_map_pid(struct vx_info *vxi, int pid,
++	const char *func, const char *file, int line)
++{
++	if (vx_info_flags(vxi, VXF_INFO_INIT, 0)) {
++		vxfprintk(VXD_CBIT(cvirt, 2),
++			"vx_map_tgid: %p/%llx: %d -> %d",
++			vxi, (long long)vxi->vx_flags, pid,
++			(pid && pid == vxi->vx_initpid)?1:pid,
++			func, file, line);
++		if (pid == 0)
++			return 0;
++		if (pid == vxi->vx_initpid)
++			return 1;
++	}
++	return pid;
++}
++
++#define vx_info_rmap_pid(v,p) \
++	__vx_info_rmap_pid((v), (p), __FUNC__, __FILE__, __LINE__)
++#define vx_rmap_pid(p)	vx_info_rmap_pid(current->vx_info, p)
++#define vx_rmap_tgid(p) vx_rmap_pid(p)
++
++static inline int __vx_info_rmap_pid(struct vx_info *vxi, int pid,
++	const char *func, const char *file, int line)
++{
++	if (vx_info_flags(vxi, VXF_INFO_INIT, 0)) {
++		vxfprintk(VXD_CBIT(cvirt, 2),
++			"vx_rmap_tgid: %p/%llx: %d -> %d",
++			vxi, (long long)vxi->vx_flags, pid,
++			(pid == 1)?vxi->vx_initpid:pid,
++			func, file, line);
++		if ((pid == 1) && vxi->vx_initpid)
++			return vxi->vx_initpid;
++		if (pid == vxi->vx_initpid)
++			return ~0U;
++	}
++	return pid;
++}
++
++
++static inline void vx_activate_task(struct task_struct *p)
++{
++	struct vx_info *vxi;
++
++	if ((vxi = p->vx_info)) {
++		vx_update_load(vxi);
++		atomic_inc(&vxi->cvirt.nr_running);
++	}
++}
++
++static inline void vx_deactivate_task(struct task_struct *p)
++{
++	struct vx_info *vxi;
++
++	if ((vxi = p->vx_info)) {
++		vx_update_load(vxi);
++		atomic_dec(&vxi->cvirt.nr_running);
++	}
++}
++
++static inline void vx_uninterruptible_inc(struct task_struct *p)
++{
++	struct vx_info *vxi;
++
++	if ((vxi = p->vx_info))
++		atomic_inc(&vxi->cvirt.nr_uninterruptible);
++}
++
++static inline void vx_uninterruptible_dec(struct task_struct *p)
++{
++	struct vx_info *vxi;
++
++	if ((vxi = p->vx_info))
++		atomic_dec(&vxi->cvirt.nr_uninterruptible);
++}
++
++
++#else
++#warning duplicate inclusion
++#endif
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vs_dlimit.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vs_dlimit.h
+@@ -0,0 +1,214 @@
++#ifndef _VX_VS_DLIMIT_H
++#define _VX_VS_DLIMIT_H
++
++
++#include "vserver/dlimit.h"
++#include "vserver/debug.h"
++
++
++#define get_dl_info(i)	__get_dl_info(i,__FILE__,__LINE__)
++
++static inline struct dl_info *__get_dl_info(struct dl_info *dli,
++	const char *_file, int _line)
++{
++	if (!dli)
++		return NULL;
++	vxlprintk(VXD_CBIT(dlim, 4), "get_dl_info(%p[#%d.%d])",
++		dli, dli?dli->dl_xid:0, dli?atomic_read(&dli->dl_usecnt):0,
++		_file, _line);
++	atomic_inc(&dli->dl_usecnt);
++	return dli;
++}
++
++
++#define free_dl_info(i) \
++	call_rcu(&i->dl_rcu, rcu_free_dl_info);
++
++#define put_dl_info(i)	__put_dl_info(i,__FILE__,__LINE__)
++
++static inline void __put_dl_info(struct dl_info *dli,
++	const char *_file, int _line)
++{
++	if (!dli)
++		return;
++	vxlprintk(VXD_CBIT(dlim, 4), "put_dl_info(%p[#%d.%d])",
++		dli, dli?dli->dl_xid:0, dli?atomic_read(&dli->dl_usecnt):0,
++		_file, _line);
++	if (atomic_dec_and_test(&dli->dl_usecnt))
++		free_dl_info(dli);
++}
++
++
++#define __dlimit_char(d)	((d)?'*':' ')
++
++static inline int __dl_alloc_space(struct super_block *sb,
++	xid_t xid, dlsize_t nr, const char *file, int line)
++{
++	struct dl_info *dli = NULL;
++	int ret = 0;
++
++	if (nr == 0)
++		goto out;
++	dli = locate_dl_info(sb, xid);
++	if (!dli)
++		goto out;
++
++	spin_lock(&dli->dl_lock);
++	ret = (dli->dl_space_used + nr > dli->dl_space_total);
++	if (!ret)
++		dli->dl_space_used += nr;
++	spin_unlock(&dli->dl_lock);
++	put_dl_info(dli);
++out:
++	vxlprintk(VXD_CBIT(dlim, 1),
++		"ALLOC (%p,#%d)%c %lld bytes (%d)",
++		sb, xid, __dlimit_char(dli), (long long)nr,
++		ret, file, line);
++	return ret;
++}
++
++static inline void __dl_free_space(struct super_block *sb,
++	xid_t xid, dlsize_t nr, const char *_file, int _line)
++{
++	struct dl_info *dli = NULL;
++
++	if (nr == 0)
++		goto out;
++	dli = locate_dl_info(sb, xid);
++	if (!dli)
++		goto out;
++
++	spin_lock(&dli->dl_lock);
++	if (dli->dl_space_used > nr)
++		dli->dl_space_used -= nr;
++	else
++		dli->dl_space_used = 0;
++	spin_unlock(&dli->dl_lock);
++	put_dl_info(dli);
++out:
++	vxlprintk(VXD_CBIT(dlim, 1),
++		"FREE  (%p,#%d)%c %lld bytes",
++		sb, xid, __dlimit_char(dli), (long long)nr,
++		_file, _line);
++}
++
++static inline int __dl_alloc_inode(struct super_block *sb,
++	xid_t xid, const char *_file, int _line)
++{
++	struct dl_info *dli;
++	int ret = 0;
++
++	dli = locate_dl_info(sb, xid);
++	if (!dli)
++		goto out;
++
++	spin_lock(&dli->dl_lock);
++	ret = (dli->dl_inodes_used >= dli->dl_inodes_total);
++	if (!ret)
++		dli->dl_inodes_used++;
++#if 0
++	else
++		vxwprintk("DLIMIT hit (%p,#%d), inode %d>=%d @ %s:%d",
++			sb, xid,
++			dli->dl_inodes_used, dli->dl_inodes_total,
++			file, line);
++#endif
++	spin_unlock(&dli->dl_lock);
++	put_dl_info(dli);
++out:
++	vxlprintk(VXD_CBIT(dlim, 0),
++		"ALLOC (%p,#%d)%c inode (%d)",
++		sb, xid, __dlimit_char(dli), ret, _file, _line);
++	return ret;
++}
++
++static inline void __dl_free_inode(struct super_block *sb,
++	xid_t xid, const char *_file, int _line)
++{
++	struct dl_info *dli;
++
++	dli = locate_dl_info(sb, xid);
++	if (!dli)
++		goto out;
++
++	spin_lock(&dli->dl_lock);
++	if (dli->dl_inodes_used > 1)
++		dli->dl_inodes_used--;
++	else
++		dli->dl_inodes_used = 0;
++	spin_unlock(&dli->dl_lock);
++	put_dl_info(dli);
++out:
++	vxlprintk(VXD_CBIT(dlim, 0),
++		"FREE  (%p,#%d)%c inode",
++		sb, xid, __dlimit_char(dli), _file, _line);
++}
++
++static inline void __dl_adjust_block(struct super_block *sb, xid_t xid,
++	unsigned int *free_blocks, unsigned int *root_blocks,
++	const char *_file, int _line)
++{
++	struct dl_info *dli;
++	uint64_t broot, bfree;
++
++	dli = locate_dl_info(sb, xid);
++	if (!dli)
++		return;
++
++	spin_lock(&dli->dl_lock);
++	broot = (dli->dl_space_total -
++		(dli->dl_space_total >> 10) * dli->dl_nrlmult)
++		>> sb->s_blocksize_bits;
++	bfree = (dli->dl_space_total - dli->dl_space_used)
++			>> sb->s_blocksize_bits;
++	spin_unlock(&dli->dl_lock);
++
++	vxlprintk(VXD_CBIT(dlim, 2),
++		"ADJUST: %lld,%lld on %d,%d [mult=%d]",
++		(long long)bfree, (long long)broot,
++		*free_blocks, *root_blocks, dli->dl_nrlmult,
++		_file, _line);
++	if (free_blocks) {
++		if (*free_blocks > bfree)
++			*free_blocks = bfree;
++	}
++	if (root_blocks) {
++		if (*root_blocks > broot)
++			*root_blocks = broot;
++	}
++	put_dl_info(dli);
++}
++
++#define DLIMIT_ALLOC_SPACE(in, bytes) \
++	__dl_alloc_space((in)->i_sb, (in)->i_xid, (dlsize_t)(bytes), \
++		__FILE__, __LINE__ )
++
++#define DLIMIT_FREE_SPACE(in, bytes) \
++	__dl_free_space((in)->i_sb, (in)->i_xid, (dlsize_t)(bytes), \
++		__FILE__, __LINE__ )
++
++#define DLIMIT_ALLOC_BLOCK(in, nr) \
++	__dl_alloc_space((in)->i_sb, (in)->i_xid, \
++		((dlsize_t)(nr)) << (in)->i_sb->s_blocksize_bits, \
++		__FILE__, __LINE__ )
++
++#define DLIMIT_FREE_BLOCK(in, nr) \
++	__dl_free_space((in)->i_sb, (in)->i_xid, \
++		((dlsize_t)(nr)) << (in)->i_sb->s_blocksize_bits, \
++		__FILE__, __LINE__ )
++
++
++#define DLIMIT_ALLOC_INODE(in) \
++	__dl_alloc_inode((in)->i_sb, (in)->i_xid, __FILE__, __LINE__ )
++
++#define DLIMIT_FREE_INODE(in) \
++	__dl_free_inode((in)->i_sb, (in)->i_xid, __FILE__, __LINE__ )
++
++
++#define DLIMIT_ADJUST_BLOCK(sb, xid, fb, rb) \
++	__dl_adjust_block(sb, xid, fb, rb, __FILE__, __LINE__ )
++
++
++#else
++#warning duplicate inclusion
++#endif
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vs_limit.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vs_limit.h
+@@ -0,0 +1,108 @@
++#ifndef _VX_VS_LIMIT_H
++#define _VX_VS_LIMIT_H
++
++
++#include "vserver/limit.h"
++#include "vserver/debug.h"
++#include "vserver/limit_int.h"
++
++
++#define vx_acc_cres(v,d,p,r) \
++	__vx_acc_cres(v, r, d, p, __FILE__, __LINE__)
++
++#define vx_acc_cres_cond(x,d,p,r) \
++	__vx_acc_cres(((x) == vx_current_xid()) ? current->vx_info : 0, \
++	r, d, p, __FILE__, __LINE__)
++
++
++#define vx_add_cres(v,a,p,r) \
++	__vx_add_cres(v, r, a, p, __FILE__, __LINE__)
++#define vx_sub_cres(v,a,p,r)		vx_add_cres(v,-(a),p,r)
++
++#define vx_add_cres_cond(x,a,p,r) \
++	__vx_add_cres(((x) == vx_current_xid()) ? current->vx_info : 0, \
++	r, a, p, __FILE__, __LINE__)
++#define vx_sub_cres_cond(x,a,p,r)	vx_add_cres_cond(x,-(a),p,r)
++
++
++/* process and file limits */
++
++#define vx_nproc_inc(p) \
++	vx_acc_cres((p)->vx_info, 1, p, RLIMIT_NPROC)
++
++#define vx_nproc_dec(p) \
++	vx_acc_cres((p)->vx_info,-1, p, RLIMIT_NPROC)
++
++#define vx_files_inc(f) \
++	vx_acc_cres_cond((f)->f_xid, 1, f, RLIMIT_NOFILE)
++
++#define vx_files_dec(f) \
++	vx_acc_cres_cond((f)->f_xid,-1, f, RLIMIT_NOFILE)
++
++#define vx_locks_inc(l) \
++	vx_acc_cres_cond((l)->fl_xid, 1, l, RLIMIT_LOCKS)
++
++#define vx_locks_dec(l) \
++	vx_acc_cres_cond((l)->fl_xid,-1, l, RLIMIT_LOCKS)
++
++#define vx_openfd_inc(f) \
++	vx_acc_cres(current->vx_info, 1, (void *)(long)(f), VLIMIT_OPENFD)
++
++#define vx_openfd_dec(f) \
++	vx_acc_cres(current->vx_info,-1, (void *)(long)(f), VLIMIT_OPENFD)
++
++
++#define vx_cres_avail(v,n,r) \
++	__vx_cres_avail(v, r, n, __FILE__, __LINE__)
++
++
++#define vx_nproc_avail(n) \
++	vx_cres_avail(current->vx_info, n, RLIMIT_NPROC)
++
++#define vx_files_avail(n) \
++	vx_cres_avail(current->vx_info, n, RLIMIT_NOFILE)
++
++#define vx_locks_avail(n) \
++	vx_cres_avail(current->vx_info, n, RLIMIT_LOCKS)
++
++#define vx_openfd_avail(n) \
++	vx_cres_avail(current->vx_info, n, VLIMIT_OPENFD)
++
++
++/* socket limits */
++
++#define vx_sock_inc(s) \
++	vx_acc_cres((s)->sk_vx_info, 1, s, VLIMIT_NSOCK)
++
++#define vx_sock_dec(s) \
++	vx_acc_cres((s)->sk_vx_info,-1, s, VLIMIT_NSOCK)
++
++#define vx_sock_avail(n) \
++	vx_cres_avail(current->vx_info, n, VLIMIT_NSOCK)
++
++
++/* ipc resource limits */
++
++#define vx_ipcmsg_add(v,u,a) \
++	vx_add_cres(v, a, u, RLIMIT_MSGQUEUE)
++
++#define vx_ipcmsg_sub(v,u,a) \
++	vx_sub_cres(v, a, u, RLIMIT_MSGQUEUE)
++
++#define vx_ipcmsg_avail(v,a) \
++	vx_cres_avail(v, a, RLIMIT_MSGQUEUE)
++
++
++#define vx_ipcshm_add(v,k,a) \
++	vx_add_cres(v, a, (void *)(long)(k), VLIMIT_SHMEM)
++
++#define vx_ipcshm_sub(v,k,a) \
++	vx_sub_cres(v, a, (void *)(long)(k), VLIMIT_SHMEM)
++
++#define vx_ipcshm_avail(v,a) \
++	vx_cres_avail(v, a, VLIMIT_SHMEM)
++
++
++#else
++#warning duplicate inclusion
++#endif
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vs_memory.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vs_memory.h
+@@ -0,0 +1,114 @@
++#ifndef _VX_VS_MEMORY_H
++#define _VX_VS_MEMORY_H
++
++
++#include "vserver/limit.h"
++#include "vserver/debug.h"
++#include "vserver/limit_int.h"
++
++
++#define __vx_add_long(a,v)	(*(v) += (a))
++#define __vx_inc_long(v)	(++*(v))
++#define __vx_dec_long(v)	(--*(v))
++
++#if NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS
++#ifdef ATOMIC64_INIT
++#define __vx_add_value(a,v)	atomic64_add(a, v)
++#define __vx_inc_value(v)	atomic64_inc(v)
++#define __vx_dec_value(v)	atomic64_dec(v)
++#else  /* !ATOMIC64_INIT */
++#define __vx_add_value(a,v)	atomic_add(a, v)
++#define __vx_inc_value(v)	atomic_inc(v)
++#define __vx_dec_value(v)	atomic_dec(v)
++#endif /* !ATOMIC64_INIT */
++#else  /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */
++#define __vx_add_value(a,v)	__vx_add_long(a,v)
++#define __vx_inc_value(v)	__vx_inc_long(v)
++#define __vx_dec_value(v)	__vx_dec_long(v)
++#endif /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */
++
++
++#define vx_acc_page(m,d,v,r) do {					\
++	if ((d) > 0)							\
++		__vx_inc_long(&(m->v));					\
++	else								\
++		__vx_dec_long(&(m->v));					\
++	__vx_acc_cres(m->mm_vx_info, r, d, m, __FILE__, __LINE__);	\
++} while (0)
++
++#define vx_acc_page_atomic(m,d,v,r) do {				\
++	if ((d) > 0)							\
++		__vx_inc_value(&(m->v));				\
++	else								\
++		__vx_dec_value(&(m->v));				\
++	__vx_acc_cres(m->mm_vx_info, r, d, m, __FILE__, __LINE__);	\
++} while (0)
++
++
++#define vx_acc_pages(m,p,v,r) do {					\
++	unsigned long __p = (p);					\
++	__vx_add_long(__p, &(m->v));					\
++	__vx_add_cres(m->mm_vx_info, r, __p, m, __FILE__, __LINE__);	\
++} while (0)
++
++#define vx_acc_pages_atomic(m,p,v,r) do {				\
++	unsigned long __p = (p);					\
++	__vx_add_value(__p, &(m->v));					\
++	__vx_add_cres(m->mm_vx_info, r, __p, m, __FILE__, __LINE__);	\
++} while (0)
++
++
++
++#define vx_acc_vmpage(m,d) \
++	vx_acc_page(m, d, total_vm,  RLIMIT_AS)
++#define vx_acc_vmlpage(m,d) \
++	vx_acc_page(m, d, locked_vm, RLIMIT_MEMLOCK)
++#define vx_acc_file_rsspage(m,d) \
++	vx_acc_page_atomic(m, d, _file_rss, RLIMIT_RSS)
++#define vx_acc_anon_rsspage(m,d) \
++	vx_acc_page_atomic(m, d, _anon_rss, VLIMIT_ANON)
++
++#define vx_acc_vmpages(m,p) \
++	vx_acc_pages(m, p, total_vm,  RLIMIT_AS)
++#define vx_acc_vmlpages(m,p) \
++	vx_acc_pages(m, p, locked_vm, RLIMIT_MEMLOCK)
++#define vx_acc_file_rsspages(m,p) \
++	vx_acc_pages_atomic(m, p, _file_rss, RLIMIT_RSS)
++#define vx_acc_anon_rsspages(m,p) \
++	vx_acc_pages_atomic(m, p, _anon_rss, VLIMIT_ANON)
++
++#define vx_pages_add(s,r,p)	__vx_add_cres(s, r, p, 0, __FILE__, __LINE__)
++#define vx_pages_sub(s,r,p)	vx_pages_add(s, r, -(p))
++
++#define vx_vmpages_inc(m)		vx_acc_vmpage(m, 1)
++#define vx_vmpages_dec(m)		vx_acc_vmpage(m,-1)
++#define vx_vmpages_add(m,p)		vx_acc_vmpages(m, p)
++#define vx_vmpages_sub(m,p)		vx_acc_vmpages(m,-(p))
++
++#define vx_vmlocked_inc(m)		vx_acc_vmlpage(m, 1)
++#define vx_vmlocked_dec(m)		vx_acc_vmlpage(m,-1)
++#define vx_vmlocked_add(m,p)		vx_acc_vmlpages(m, p)
++#define vx_vmlocked_sub(m,p)		vx_acc_vmlpages(m,-(p))
++
++#define vx_file_rsspages_inc(m)		vx_acc_file_rsspage(m, 1)
++#define vx_file_rsspages_dec(m)		vx_acc_file_rsspage(m,-1)
++#define vx_file_rsspages_add(m,p)	vx_acc_file_rsspages(m, p)
++#define vx_file_rsspages_sub(m,p)	vx_acc_file_rsspages(m,-(p))
++
++#define vx_anon_rsspages_inc(m)		vx_acc_anon_rsspage(m, 1)
++#define vx_anon_rsspages_dec(m)		vx_acc_anon_rsspage(m,-1)
++#define vx_anon_rsspages_add(m,p)	vx_acc_anon_rsspages(m, p)
++#define vx_anon_rsspages_sub(m,p)	vx_acc_anon_rsspages(m,-(p))
++
++
++#define vx_pages_avail(m,p,r) \
++	__vx_cres_avail((m)->mm_vx_info, r, p, __FILE__, __LINE__)
++
++#define vx_vmpages_avail(m,p)	vx_pages_avail(m, p, RLIMIT_AS)
++#define vx_vmlocked_avail(m,p)	vx_pages_avail(m, p, RLIMIT_MEMLOCK)
++#define vx_rsspages_avail(m,p)	vx_pages_avail(m, p, RLIMIT_RSS)
++#define vx_anonpages_avail(m,p)	vx_pages_avail(m, p, VLIMIT_ANON)
++
++#else
++#warning duplicate inclusion
++#endif
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vs_network.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vs_network.h
+@@ -0,0 +1,210 @@
++#ifndef _NX_VS_NETWORK_H
++#define _NX_VS_NETWORK_H
++
++
++#include "vserver/network.h"
++#include "vserver/debug.h"
++
++
++#define get_nx_info(i)	__get_nx_info(i,__FILE__,__LINE__)
++
++static inline struct nx_info *__get_nx_info(struct nx_info *nxi,
++	const char *_file, int _line)
++{
++	if (!nxi)
++		return NULL;
++
++	vxlprintk(VXD_CBIT(nid, 2), "get_nx_info(%p[#%d.%d])",
++		nxi, nxi?nxi->nx_id:0, nxi?atomic_read(&nxi->nx_usecnt):0,
++		_file, _line);
++
++	atomic_inc(&nxi->nx_usecnt);
++	return nxi;
++}
++
++
++extern void free_nx_info(struct nx_info *);
++
++#define put_nx_info(i)	__put_nx_info(i,__FILE__,__LINE__)
++
++static inline void __put_nx_info(struct nx_info *nxi, const char *_file, int _line)
++{
++	if (!nxi)
++		return;
++
++	vxlprintk(VXD_CBIT(nid, 2), "put_nx_info(%p[#%d.%d])",
++		nxi, nxi?nxi->nx_id:0, nxi?atomic_read(&nxi->nx_usecnt):0,
++		_file, _line);
++
++	if (atomic_dec_and_test(&nxi->nx_usecnt))
++		free_nx_info(nxi);
++}
++
++
++#define init_nx_info(p,i) __init_nx_info(p,i,__FILE__,__LINE__)
++
++static inline void __init_nx_info(struct nx_info **nxp, struct nx_info *nxi,
++		const char *_file, int _line)
++{
++	if (nxi) {
++		vxlprintk(VXD_CBIT(nid, 3),
++			"init_nx_info(%p[#%d.%d])",
++			nxi, nxi?nxi->nx_id:0,
++			nxi?atomic_read(&nxi->nx_usecnt):0,
++			_file, _line);
++
++		atomic_inc(&nxi->nx_usecnt);
++	}
++	*nxp = nxi;
++}
++
++
++#define set_nx_info(p,i) __set_nx_info(p,i,__FILE__,__LINE__)
++
++static inline void __set_nx_info(struct nx_info **nxp, struct nx_info *nxi,
++	const char *_file, int _line)
++{
++	struct nx_info *nxo;
++
++	if (!nxi)
++		return;
++
++	vxlprintk(VXD_CBIT(nid, 3), "set_nx_info(%p[#%d.%d])",
++		nxi, nxi?nxi->nx_id:0,
++		nxi?atomic_read(&nxi->nx_usecnt):0,
++		_file, _line);
++
++	atomic_inc(&nxi->nx_usecnt);
++	nxo = xchg(nxp, nxi);
++	BUG_ON(nxo);
++}
++
++#define clr_nx_info(p)	__clr_nx_info(p,__FILE__,__LINE__)
++
++static inline void __clr_nx_info(struct nx_info **nxp,
++	const char *_file, int _line)
++{
++	struct nx_info *nxo;
++
++	nxo = xchg(nxp, NULL);
++	if (!nxo)
++		return;
++
++	vxlprintk(VXD_CBIT(nid, 3), "clr_nx_info(%p[#%d.%d])",
++		nxo, nxo?nxo->nx_id:0,
++		nxo?atomic_read(&nxo->nx_usecnt):0,
++		_file, _line);
++
++	if (atomic_dec_and_test(&nxo->nx_usecnt))
++		free_nx_info(nxo);
++}
++
++
++#define claim_nx_info(v,p) __claim_nx_info(v,p,__FILE__,__LINE__)
++
++static inline void __claim_nx_info(struct nx_info *nxi,
++	struct task_struct *task, const char *_file, int _line)
++{
++	vxlprintk(VXD_CBIT(nid, 3), "claim_nx_info(%p[#%d.%d.%d]) %p",
++		nxi, nxi?nxi->nx_id:0,
++		nxi?atomic_read(&nxi->nx_usecnt):0,
++		nxi?atomic_read(&nxi->nx_tasks):0,
++		task, _file, _line);
++
++	atomic_inc(&nxi->nx_tasks);
++}
++
++
++extern void unhash_nx_info(struct nx_info *);
++
++#define release_nx_info(v,p) __release_nx_info(v,p,__FILE__,__LINE__)
++
++static inline void __release_nx_info(struct nx_info *nxi,
++	struct task_struct *task, const char *_file, int _line)
++{
++	vxlprintk(VXD_CBIT(nid, 3), "release_nx_info(%p[#%d.%d.%d]) %p",
++		nxi, nxi?nxi->nx_id:0,
++		nxi?atomic_read(&nxi->nx_usecnt):0,
++		nxi?atomic_read(&nxi->nx_tasks):0,
++		task, _file, _line);
++
++	might_sleep();
++
++	if (atomic_dec_and_test(&nxi->nx_tasks))
++		unhash_nx_info(nxi);
++}
++
++
++#define task_get_nx_info(i)	__task_get_nx_info(i,__FILE__,__LINE__)
++
++static __inline__ struct nx_info *__task_get_nx_info(struct task_struct *p,
++	const char *_file, int _line)
++{
++	struct nx_info *nxi;
++
++	task_lock(p);
++	vxlprintk(VXD_CBIT(nid, 5), "task_get_nx_info(%p)",
++		p, _file, _line);
++	nxi = __get_nx_info(p->nx_info, _file, _line);
++	task_unlock(p);
++	return nxi;
++}
++
++
++#define nx_task_nid(t)	((t)->nid)
++
++#define nx_current_nid() nx_task_nid(current)
++
++#define nx_check(c,m)	__nx_check(nx_current_nid(),c,m)
++
++#define nx_weak_check(c,m)	((m) ? nx_check(c,m) : 1)
++
++
++#define __nx_state(v)	((v) ? ((v)->nx_state) : 0)
++
++#define nx_info_state(v,m)	(__nx_state(v) & (m))
++
++
++#define __nx_flags(v)	((v) ? (v)->nx_flags : 0)
++
++#define nx_current_flags()	__nx_flags(current->nx_info)
++
++#define nx_info_flags(v,m,f) \
++	vx_check_flags(__nx_flags(v),(m),(f))
++
++#define task_nx_flags(t,m,f) \
++	((t) && nx_info_flags((t)->nx_info, (m), (f)))
++
++#define nx_flags(m,f)	nx_info_flags(current->nx_info,(m),(f))
++
++
++/* context caps */
++
++#define __nx_ncaps(v)	((v) ? (v)->nx_ncaps : 0)
++
++#define nx_current_ncaps()	__nx_ncaps(current->nx_info)
++
++#define nx_info_ncaps(v,c)	(__nx_ncaps(v) & (c))
++
++#define nx_ncaps(c)	nx_info_ncaps(current->nx_info,(c))
++
++
++static inline int addr_in_nx_info(struct nx_info *nxi, uint32_t addr)
++{
++	int n,i;
++
++	if (!nxi)
++		return 1;
++
++	n = nxi->nbipv4;
++	for (i=0; i<n; i++) {
++		if (nxi->ipv4[i] == addr)
++			return 1;
++	}
++	return 0;
++}
++
++
++#else
++#warning duplicate inclusion
++#endif
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vs_sched.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vs_sched.h
+@@ -0,0 +1,96 @@
++#ifndef _VX_VS_SCHED_H
++#define _VX_VS_SCHED_H
++
++#ifndef CONFIG_VSERVER
++#warning config options missing
++#endif
++
++#include "vserver/sched.h"
++
++
++#define VAVAVOOM_RATIO		 50
++
++#define MAX_PRIO_BIAS		 20
++#define MIN_PRIO_BIAS		-20
++
++
++static inline int vx_tokens_avail(struct vx_info *vxi)
++{
++	return atomic_read(&vxi->sched.tokens);
++}
++
++static inline void vx_consume_token(struct vx_info *vxi)
++{
++	atomic_dec(&vxi->sched.tokens);
++}
++
++static inline int vx_need_resched(struct task_struct *p)
++{
++#ifdef	CONFIG_VSERVER_HARDCPU
++	struct vx_info *vxi = p->vx_info;
++#endif
++	int slice = --p->time_slice;
++
++#ifdef	CONFIG_VSERVER_HARDCPU
++	if (vxi) {
++		int tokens;
++
++		if ((tokens = vx_tokens_avail(vxi)) > 0)
++			vx_consume_token(vxi);
++		/* for tokens > 0, one token was consumed */
++		if (tokens < 2)
++			return 1;
++	}
++#endif
++	return (slice == 0);
++}
++
++
++static inline void vx_onhold_inc(struct vx_info *vxi)
++{
++	int onhold = atomic_read(&vxi->cvirt.nr_onhold);
++
++	atomic_inc(&vxi->cvirt.nr_onhold);
++	if (!onhold)
++		vxi->cvirt.onhold_last = jiffies;
++}
++
++static inline void __vx_onhold_update(struct vx_info *vxi)
++{
++	int cpu = smp_processor_id();
++	uint32_t now = jiffies;
++	uint32_t delta = now - vxi->cvirt.onhold_last;
++
++	vxi->cvirt.onhold_last = now;
++	vxi->sched.cpu[cpu].hold_ticks += delta;
++}
++
++static inline void vx_onhold_dec(struct vx_info *vxi)
++{
++	if (atomic_dec_and_test(&vxi->cvirt.nr_onhold))
++		__vx_onhold_update(vxi);
++}
++
++static inline void vx_account_user(struct vx_info *vxi,
++	cputime_t cputime, int nice)
++{
++	int cpu = smp_processor_id();
++
++	if (!vxi)
++		return;
++	vxi->sched.cpu[cpu].user_ticks += cputime;
++}
++
++static inline void vx_account_system(struct vx_info *vxi,
++	cputime_t cputime, int idle)
++{
++	int cpu = smp_processor_id();
++
++	if (!vxi)
++		return;
++	vxi->sched.cpu[cpu].sys_ticks += cputime;
++}
++
++#else
++#warning duplicate inclusion
++#endif
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vs_socket.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vs_socket.h
+@@ -0,0 +1,58 @@
++#ifndef _VX_VS_SOCKET_H
++#define _VX_VS_SOCKET_H
++
++
++#include "vserver/debug.h"
++
++
++/* socket accounting */
++
++#include <linux/socket.h>
++
++static inline int vx_sock_type(int family)
++{
++	int type = 4;
++
++	if (family > 0 && family < 3)
++		type = family;
++	else if (family == PF_INET6)
++		type = 3;
++	return type;
++}
++
++#define vx_acc_sock(v,f,p,s) \
++	__vx_acc_sock((v), (f), (p), (s), __FILE__, __LINE__)
++
++static inline void __vx_acc_sock(struct vx_info *vxi,
++	int family, int pos, int size, char *file, int line)
++{
++	if (vxi) {
++		int type = vx_sock_type(family);
++
++		atomic_inc(&vxi->cacct.sock[type][pos].count);
++		atomic_add(size, &vxi->cacct.sock[type][pos].total);
++	}
++}
++
++#define vx_sock_recv(sk,s) \
++	vx_acc_sock((sk)->sk_vx_info, (sk)->sk_family, 0, (s))
++#define vx_sock_send(sk,s) \
++	vx_acc_sock((sk)->sk_vx_info, (sk)->sk_family, 1, (s))
++#define vx_sock_fail(sk,s) \
++	vx_acc_sock((sk)->sk_vx_info, (sk)->sk_family, 2, (s))
++
++
++#define sock_vx_init(s) do {		\
++	(s)->sk_xid = 0;		\
++	(s)->sk_vx_info = NULL;		\
++	} while (0)
++
++#define sock_nx_init(s) do {		\
++	(s)->sk_nid = 0;		\
++	(s)->sk_nx_info = NULL;		\
++	} while (0)
++
++
++#else
++#warning duplicate inclusion
++#endif
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/context.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/context.h
+@@ -0,0 +1,161 @@
++#ifndef _VX_CONTEXT_H
++#define _VX_CONTEXT_H
++
++#include <linux/types.h>
++
++
++#define MAX_S_CONTEXT	65535	/* Arbitrary limit */
++#define MIN_D_CONTEXT	49152	/* dynamic contexts start here */
++
++#define VX_DYNAMIC_ID	((uint32_t)-1)		/* id for dynamic context */
++
++/* context flags */
++
++#define VXF_INFO_LOCK		0x00000001
++#define VXF_INFO_SCHED		0x00000002
++#define VXF_INFO_NPROC		0x00000004
++#define VXF_INFO_PRIVATE	0x00000008
++
++#define VXF_INFO_INIT		0x00000010
++#define VXF_INFO_HIDE		0x00000020
++#define VXF_INFO_ULIMIT		0x00000040
++#define VXF_INFO_NSPACE		0x00000080
++
++#define VXF_SCHED_HARD		0x00000100
++#define VXF_SCHED_PRIO		0x00000200
++#define VXF_SCHED_PAUSE		0x00000400
++
++#define VXF_VIRT_MEM		0x00010000
++#define VXF_VIRT_UPTIME		0x00020000
++#define VXF_VIRT_CPU		0x00040000
++#define VXF_VIRT_LOAD		0x00080000
++
++#define VXF_HIDE_MOUNT		0x01000000
++#define VXF_HIDE_NETIF		0x02000000
++
++#define VXF_STATE_SETUP		(1ULL<<32)
++#define VXF_STATE_INIT		(1ULL<<33)
++
++#define VXF_STATE_HELPER	(1ULL<<36)
++
++#define VXF_FORK_RSS		(1ULL<<48)
++#define VXF_PROLIFIC		(1ULL<<49)
++
++#define VXF_IGNEG_NICE		(1ULL<<52)
++
++#define VXF_ONE_TIME		(0x0003ULL<<32)
++
++#define VXF_INIT_SET		(VXF_STATE_SETUP|VXF_STATE_INIT)
++
++
++/* context caps */
++
++#define VXC_CAP_MASK		0x00000000
++
++#define VXC_SET_UTSNAME		0x00000001
++#define VXC_SET_RLIMIT		0x00000002
++
++#define VXC_RAW_ICMP		0x00000100
++#define VXC_SYSLOG		0x00001000
++
++#define VXC_SECURE_MOUNT	0x00010000
++#define VXC_SECURE_REMOUNT	0x00020000
++#define VXC_BINARY_MOUNT	0x00040000
++
++#define VXC_QUOTA_CTL		0x00100000
++
++
++/* context state changes */
++
++enum {
++	VSC_STARTUP = 1,
++	VSC_SHUTDOWN,
++
++	VSC_NETUP,
++	VSC_NETDOWN,
++};
++
++
++#ifdef	__KERNEL__
++
++#include <linux/list.h>
++#include <linux/spinlock.h>
++#include <linux/rcupdate.h>
++
++#include "limit_def.h"
++#include "sched_def.h"
++#include "cvirt_def.h"
++
++struct vx_info {
++	struct hlist_node vx_hlist;		/* linked list of contexts */
++	xid_t vx_id;				/* context id */
++	atomic_t vx_usecnt;			/* usage count */
++	atomic_t vx_tasks;			/* tasks count */
++	struct vx_info *vx_parent;		/* parent context */
++	int vx_state;				/* context state */
++
++	struct namespace *vx_namespace;		/* private namespace */
++	struct fs_struct *vx_fs;		/* private namespace fs */
++	uint64_t vx_flags;			/* context flags */
++	uint64_t vx_bcaps;			/* bounding caps (system) */
++	uint64_t vx_ccaps;			/* context caps (vserver) */
++
++	pid_t vx_initpid;			/* PID of fake init process */
++
++	wait_queue_head_t vx_wait;		/* context exit waitqueue */
++
++	struct _vx_limit limit;			/* vserver limits */
++	struct _vx_sched sched;			/* vserver scheduler */
++	struct _vx_cvirt cvirt;			/* virtual/bias stuff */
++	struct _vx_cacct cacct;			/* context accounting */
++
++	char vx_name[65];			/* vserver name */
++};
++
++
++/* status flags */
++
++#define VXS_HASHED	0x0001
++#define VXS_PAUSED	0x0010
++#define VXS_ONHOLD	0x0020
++#define VXS_SHUTDOWN	0x0100
++#define VXS_RELEASED	0x8000
++
++/* check conditions */
++
++#define VX_ADMIN	0x0001
++#define VX_WATCH	0x0002
++#define VX_HIDE		0x0004
++#define VX_HOSTID	0x0008
++
++#define VX_IDENT	0x0010
++#define VX_EQUIV	0x0020
++#define VX_PARENT	0x0040
++#define VX_CHILD	0x0080
++
++#define VX_ARG_MASK	0x00F0
++
++#define VX_DYNAMIC	0x0100
++#define VX_STATIC	0x0200
++
++#define VX_ATR_MASK	0x0F00
++
++
++extern void claim_vx_info(struct vx_info *, struct task_struct *);
++extern void release_vx_info(struct vx_info *, struct task_struct *);
++
++extern struct vx_info *locate_vx_info(int);
++extern struct vx_info *locate_or_create_vx_info(int);
++
++extern int get_xid_list(int, unsigned int *, int);
++extern int xid_is_hashed(xid_t);
++
++extern int vx_migrate_task(struct task_struct *, struct vx_info *);
++
++extern long vs_state_change(struct vx_info *, unsigned int);
++
++
++#endif	/* __KERNEL__ */
++#else	/* _VX_CONTEXT_H */
++#warning duplicate inclusion
++#endif	/* _VX_CONTEXT_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/context_cmd.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/context_cmd.h
+@@ -0,0 +1,79 @@
++#ifndef _VX_CONTEXT_CMD_H
++#define _VX_CONTEXT_CMD_H
++
++
++/* vinfo commands */
++
++#define VCMD_task_xid		VC_CMD(VINFO, 1, 0)
++
++#ifdef	__KERNEL__
++extern int vc_task_xid(uint32_t, void __user *);
++
++#endif	/* __KERNEL__ */
++
++#define VCMD_vx_info		VC_CMD(VINFO, 5, 0)
++
++struct	vcmd_vx_info_v0 {
++	uint32_t xid;
++	uint32_t initpid;
++	/* more to come */
++};
++
++#ifdef	__KERNEL__
++extern int vc_vx_info(uint32_t, void __user *);
++
++#endif	/* __KERNEL__ */
++
++
++/* context commands */
++
++#define VCMD_ctx_create_v0	VC_CMD(VPROC, 1, 0)
++#define VCMD_ctx_create		VC_CMD(VPROC, 1, 1)
++
++struct	vcmd_ctx_create {
++	uint64_t flagword;
++};
++
++#define VCMD_ctx_migrate	VC_CMD(PROCMIG, 1, 0)
++
++#ifdef	__KERNEL__
++extern int vc_ctx_create(uint32_t, void __user *);
++extern int vc_ctx_migrate(uint32_t, void __user *);
++
++#endif	/* __KERNEL__ */
++
++
++/* flag commands */
++
++#define VCMD_get_cflags		VC_CMD(FLAGS, 1, 0)
++#define VCMD_set_cflags		VC_CMD(FLAGS, 2, 0)
++
++struct	vcmd_ctx_flags_v0 {
++	uint64_t flagword;
++	uint64_t mask;
++};
++
++#ifdef	__KERNEL__
++extern int vc_get_cflags(uint32_t, void __user *);
++extern int vc_set_cflags(uint32_t, void __user *);
++
++#endif	/* __KERNEL__ */
++
++
++/* context caps commands */
++
++#define VCMD_get_ccaps		VC_CMD(FLAGS, 3, 0)
++#define VCMD_set_ccaps		VC_CMD(FLAGS, 4, 0)
++
++struct	vcmd_ctx_caps_v0 {
++	uint64_t bcaps;
++	uint64_t ccaps;
++	uint64_t cmask;
++};
++
++#ifdef	__KERNEL__
++extern int vc_get_ccaps(uint32_t, void __user *);
++extern int vc_set_ccaps(uint32_t, void __user *);
++
++#endif	/* __KERNEL__ */
++#endif	/* _VX_CONTEXT_CMD_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/cvirt.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/cvirt.h
+@@ -0,0 +1,25 @@
++#ifndef _VX_CVIRT_H
++#define _VX_CVIRT_H
++
++#ifdef	__KERNEL__
++
++struct timespec;
++
++void vx_vsi_uptime(struct timespec *, struct timespec *);
++
++
++struct vx_info;
++
++void vx_update_load(struct vx_info *);
++
++
++int vx_uts_virt_handler(struct ctl_table *ctl, int write, xid_t xid,
++	void **datap, size_t *lenp);
++
++
++int vx_do_syslog(int, char __user *, int);
++
++#endif	/* __KERNEL__ */
++#else	/* _VX_CVIRT_H */
++#warning duplicate inclusion
++#endif	/* _VX_CVIRT_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/cvirt_cmd.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/cvirt_cmd.h
+@@ -0,0 +1,34 @@
++#ifndef _VX_CVIRT_CMD_H
++#define _VX_CVIRT_CMD_H
++
++/* virtual host info name commands */
++
++#define VCMD_set_vhi_name	VC_CMD(VHOST, 1, 0)
++#define VCMD_get_vhi_name	VC_CMD(VHOST, 2, 0)
++
++struct	vcmd_vhi_name_v0 {
++	uint32_t field;
++	char name[65];
++};
++
++
++enum vhi_name_field {
++	VHIN_CONTEXT=0,
++	VHIN_SYSNAME,
++	VHIN_NODENAME,
++	VHIN_RELEASE,
++	VHIN_VERSION,
++	VHIN_MACHINE,
++	VHIN_DOMAINNAME,
++};
++
++
++#ifdef	__KERNEL__
++
++#include <linux/compiler.h>
++
++extern int vc_set_vhi_name(uint32_t, void __user *);
++extern int vc_get_vhi_name(uint32_t, void __user *);
++
++#endif	/* __KERNEL__ */
++#endif	/* _VX_CVIRT_CMD_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/cvirt_def.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/cvirt_def.h
+@@ -0,0 +1,77 @@
++#ifndef _VX_CVIRT_DEF_H
++#define _VX_CVIRT_DEF_H
++
++#include <linux/jiffies.h>
++#include <linux/utsname.h>
++#include <linux/spinlock.h>
++#include <linux/wait.h>
++#include <linux/time.h>
++#include <asm/atomic.h>
++
++
++struct _vx_usage_stat {
++	uint64_t user;
++	uint64_t nice;
++	uint64_t system;
++	uint64_t softirq;
++	uint64_t irq;
++	uint64_t idle;
++	uint64_t iowait;
++};
++
++struct _vx_syslog {
++	wait_queue_head_t log_wait;
++	spinlock_t logbuf_lock;		/* lock for the log buffer */
++
++	unsigned long log_start;	/* next char to be read by syslog() */
++	unsigned long con_start;	/* next char to be sent to consoles */
++	unsigned long log_end;	/* most-recently-written-char + 1 */
++	unsigned long logged_chars;	/* #chars since last read+clear operation */
++
++	char log_buf[1024];
++};
++
++
++/* context sub struct */
++
++struct _vx_cvirt {
++	int max_threads;		/* maximum allowed threads */
++	atomic_t nr_threads;		/* number of current threads */
++	atomic_t nr_running;		/* number of running threads */
++	atomic_t nr_uninterruptible;	/* number of uninterruptible threads */
++
++	atomic_t nr_onhold;		/* processes on hold */
++	uint32_t onhold_last;		/* jiffies when put on hold */
++
++	struct timespec bias_idle;
++	struct timespec bias_uptime;	/* context creation point */
++	uint64_t bias_clock;		/* offset in clock_t */
++
++	struct new_utsname utsname;
++
++	spinlock_t load_lock;		/* lock for the load averages */
++	atomic_t load_updates;		/* nr of load updates done so far */
++	uint32_t load_last;		/* last time load was cacled */
++	uint32_t load[3];		/* load averages 1,5,15 */
++
++	atomic_t total_forks;		/* number of forks so far */
++
++	struct _vx_usage_stat cpustat[NR_CPUS];
++
++	struct _vx_syslog syslog;
++};
++
++struct _vx_sock_acc {
++	atomic_t count;
++	atomic_t total;
++};
++
++/* context sub struct */
++
++struct _vx_cacct {
++	unsigned long total_forks;
++
++	struct _vx_sock_acc sock[5][3];
++};
++
++#endif	/* _VX_CVIRT_DEF_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/debug.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/debug.h
+@@ -0,0 +1,279 @@
++#ifndef _VX_DEBUG_H
++#define _VX_DEBUG_H
++
++#ifndef CONFIG_VSERVER
++#warning config options missing
++#endif
++
++#define VXD_CBIT(n,m)	(vx_debug_ ## n & (1 << (m)))
++#define VXD_CMIN(n,m)	(vx_debug_ ## n > (m))
++#define VXD_MASK(n,m)	(vx_debug_ ## n & (m))
++
++#define VXD_QPOS(v,p)	(((uint32_t)(v) >> ((p)*8)) & 0xFF)
++#define VXD_QUAD(v)	VXD_QPOS(v,0), VXD_QPOS(v,1),		\
++			VXD_QPOS(v,2), VXD_QPOS(v,3)
++#define VXF_QUAD	"%u.%u.%u.%u"
++
++#define VXD_DEV(d)	(d), (d)->bd_inode->i_ino,		\
++			imajor((d)->bd_inode), iminor((d)->bd_inode)
++#define VXF_DEV		"%p[%lu,%d:%d]"
++
++
++#define __FUNC__	__func__
++
++
++#ifdef	CONFIG_VSERVER_DEBUG
++
++extern unsigned int vx_debug_switch;
++extern unsigned int vx_debug_xid;
++extern unsigned int vx_debug_nid;
++extern unsigned int vx_debug_net;
++extern unsigned int vx_debug_limit;
++extern unsigned int vx_debug_dlim;
++extern unsigned int vx_debug_cvirt;
++extern unsigned int vx_debug_misc;
++
++
++#define VX_LOGLEVEL	"vxD: "
++#define VX_WARNLEVEL	KERN_WARNING "vxW: "
++
++#define vxdprintk(c,f,x...)					\
++	do {							\
++		if (c)						\
++			printk(VX_LOGLEVEL f "\n" , ##x);	\
++	} while (0)
++
++#define vxlprintk(c,f,x...)					\
++	do {							\
++		if (c)						\
++			printk(VX_LOGLEVEL f " @%s:%d\n", x);	\
++	} while (0)
++
++#define vxfprintk(c,f,x...)					\
++	do {							\
++		if (c)						\
++			printk(VX_LOGLEVEL f " %s@%s:%d\n", x); \
++	} while (0)
++
++
++#define vxwprintk(c,f,x...)					\
++	do {							\
++		if (c)						\
++			printk(VX_WARNLEVEL f "\n" , ##x);	\
++	} while (0)
++
++
++#define vxd_path(d,m)						\
++	({ static char _buffer[PATH_MAX];			\
++	   d_path((d), (m), _buffer, sizeof(_buffer)); })
++
++#else	/* CONFIG_VSERVER_DEBUG */
++
++#define vx_debug_switch 0
++#define vx_debug_xid	0
++#define vx_debug_nid	0
++#define vx_debug_net	0
++#define vx_debug_limit	0
++#define vx_debug_dlim	0
++#define vx_debug_cvirt	0
++
++#define vxdprintk(x...) do { } while (0)
++#define vxlprintk(x...) do { } while (0)
++#define vxfprintk(x...) do { } while (0)
++#define vxwprintk(x...) do { } while (0)
++
++#define vxd_path	"<none>"
++
++#endif	/* CONFIG_VSERVER_DEBUG */
++
++
++/* history stuff */
++
++#ifdef	CONFIG_VSERVER_HISTORY
++
++
++extern unsigned volatile int vxh_active;
++
++struct _vxhe_vxi {
++	struct vx_info *ptr;
++	unsigned xid;
++	unsigned usecnt;
++	unsigned tasks;
++};
++
++struct _vxhe_set_clr {
++	void *data;
++};
++
++struct _vxhe_loc_lookup {
++	unsigned arg;
++};
++
++enum {
++	VXH_UNUSED=0,
++	VXH_THROW_OOPS=1,
++
++	VXH_GET_VX_INFO,
++	VXH_PUT_VX_INFO,
++	VXH_INIT_VX_INFO,
++	VXH_SET_VX_INFO,
++	VXH_CLR_VX_INFO,
++	VXH_CLAIM_VX_INFO,
++	VXH_RELEASE_VX_INFO,
++	VXH_ALLOC_VX_INFO,
++	VXH_DEALLOC_VX_INFO,
++	VXH_HASH_VX_INFO,
++	VXH_UNHASH_VX_INFO,
++	VXH_LOC_VX_INFO,
++	VXH_LOOKUP_VX_INFO,
++	VXH_CREATE_VX_INFO,
++};
++
++struct _vx_hist_entry {
++	void *loc;
++	unsigned short seq;
++	unsigned short type;
++	struct _vxhe_vxi vxi;
++	union {
++		struct _vxhe_set_clr sc;
++		struct _vxhe_loc_lookup ll;
++	};
++};
++
++struct _vx_hist_entry *vxh_advance(void *loc);
++
++#define VXH_HERE(__type)			\
++	({ __label__ __vxh_##__type;		\
++		__vxh_##__type:;		\
++		&&__vxh_##__type; })
++
++
++
++static inline void __vxh_copy_vxi(struct _vx_hist_entry *entry, struct vx_info *vxi)
++{
++	entry->vxi.ptr = vxi;
++	if (vxi) {
++		entry->vxi.usecnt = atomic_read(&vxi->vx_usecnt);
++		entry->vxi.tasks = atomic_read(&vxi->vx_tasks);
++		entry->vxi.xid = vxi->vx_id;
++	}
++}
++
++
++#define __VXH_BODY(__type, __data)		\
++	struct _vx_hist_entry *entry;		\
++						\
++	preempt_disable();			\
++	entry = vxh_advance(VXH_HERE(__type));	\
++	__data;					\
++	entry->type = __type;			\
++	preempt_enable();
++
++
++	/* pass vxi only */
++#define __VXH_SIMPLE				\
++	__vxh_copy_vxi(entry, vxi)
++
++#define VXH_SIMPLE(__name, __type)		\
++static inline void __name(struct vx_info *vxi)	\
++{						\
++	__VXH_BODY(__type, __VXH_SIMPLE)	\
++}
++
++	/* pass vxi and data (void *) */
++#define __VXH_DATA				\
++	__vxh_copy_vxi(entry, vxi);		\
++	entry->sc.data = data
++
++#define VXH_DATA(__name, __type)		\
++static inline					\
++void __name(struct vx_info *vxi, void *data)	\
++{						\
++	__VXH_BODY(__type, __VXH_DATA)		\
++}
++
++	/* pass vxi and arg (long) */
++#define __VXH_LARG				\
++	__vxh_copy_vxi(entry, vxi);		\
++	entry->ll.arg = arg
++
++#define VXH_LARG(__name, __type)		\
++static inline					\
++void __name(struct vx_info *vxi, long arg)	\
++{						\
++	__VXH_BODY(__type, __VXH_LARG)		\
++}
++
++
++static inline void vxh_throw_oops(void)
++{
++	__VXH_BODY(VXH_THROW_OOPS, {});
++	/* prevent further acquisition */
++	vxh_active = 0;
++}
++
++VXH_SIMPLE(vxh_get_vx_info,	VXH_GET_VX_INFO);
++VXH_SIMPLE(vxh_put_vx_info,	VXH_PUT_VX_INFO);
++
++VXH_DATA(vxh_init_vx_info,	VXH_INIT_VX_INFO);
++VXH_DATA(vxh_set_vx_info,	VXH_SET_VX_INFO);
++VXH_DATA(vxh_clr_vx_info,	VXH_CLR_VX_INFO);
++
++VXH_DATA(vxh_claim_vx_info,	VXH_CLAIM_VX_INFO);
++VXH_DATA(vxh_release_vx_info,	VXH_RELEASE_VX_INFO);
++
++VXH_SIMPLE(vxh_alloc_vx_info,	VXH_ALLOC_VX_INFO);
++VXH_SIMPLE(vxh_dealloc_vx_info, VXH_DEALLOC_VX_INFO);
++
++VXH_SIMPLE(vxh_hash_vx_info,	VXH_HASH_VX_INFO);
++VXH_SIMPLE(vxh_unhash_vx_info,	VXH_UNHASH_VX_INFO);
++
++VXH_LARG(vxh_loc_vx_info,	VXH_LOC_VX_INFO);
++VXH_LARG(vxh_lookup_vx_info,	VXH_LOOKUP_VX_INFO);
++VXH_LARG(vxh_create_vx_info,	VXH_CREATE_VX_INFO);
++
++extern void vxh_dump_history(void);
++
++
++#else  /* CONFIG_VSERVER_HISTORY */
++
++
++#define vxh_throw_oops()		do { } while (0)
++
++#define vxh_get_vx_info(v)		do { } while (0)
++#define vxh_put_vx_info(v)		do { } while (0)
++
++#define vxh_init_vx_info(v,d)		do { } while (0)
++#define vxh_set_vx_info(v,d)		do { } while (0)
++#define vxh_clr_vx_info(v,d)		do { } while (0)
++
++#define vxh_claim_vx_info(v,d)		do { } while (0)
++#define vxh_release_vx_info(v,d)	do { } while (0)
++
++#define vxh_alloc_vx_info(v)		do { } while (0)
++#define vxh_dealloc_vx_info(v)		do { } while (0)
++
++#define vxh_hash_vx_info(v)		do { } while (0)
++#define vxh_unhash_vx_info(v)		do { } while (0)
++
++#define vxh_loc_vx_info(a,v)		do { } while (0)
++#define vxh_lookup_vx_info(a,v)		do { } while (0)
++#define vxh_create_vx_info(a,v)		do { } while (0)
++
++#define vxh_dump_history()		do { } while (0)
++
++
++#endif /* CONFIG_VSERVER_HISTORY */
++
++
++#ifdef	CONFIG_VSERVER_DEBUG
++#define vxd_assert_lock(l)	assert_spin_locked(l)
++#define vxd_assert(c,f,x...)	vxlprintk(!(c), \
++	"assertion [" f "] failed.", ##x, __FILE__, __LINE__)
++#else
++#define vxd_assert_lock(l)	do { } while (0)
++#define vxd_assert(c,f,x...)	do { } while (0)
++#endif
++
++
++#endif /* _VX_DEBUG_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/debug_cmd.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/debug_cmd.h
+@@ -0,0 +1,14 @@
++#ifndef _VX_DEBUG_CMD_H
++#define _VX_DEBUG_CMD_H
++
++
++/* debug commands */
++
++#define VCMD_dump_history	VC_CMD(DEBUG, 1, 0)
++
++#ifdef	__KERNEL__
++
++extern int vc_dump_history(uint32_t);
++
++#endif	/* __KERNEL__ */
++#endif	/* _VX_DEBUG_CMD_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/dlimit.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/dlimit.h
+@@ -0,0 +1,53 @@
++#ifndef _VX_DLIMIT_H
++#define _VX_DLIMIT_H
++
++#include "switch.h"
++
++#define CDLIM_UNSET		(0ULL)
++#define CDLIM_INFINITY		(~0ULL)
++#define CDLIM_KEEP		(~1ULL)
++
++
++#ifdef	__KERNEL__
++
++#include <linux/spinlock.h>
++
++struct super_block;
++
++struct dl_info {
++	struct hlist_node dl_hlist;		/* linked list of contexts */
++	struct rcu_head dl_rcu;			/* the rcu head */
++	xid_t dl_xid;				/* context id */
++	atomic_t dl_usecnt;			/* usage count */
++	atomic_t dl_refcnt;			/* reference count */
++
++	struct super_block *dl_sb;		/* associated superblock */
++
++	spinlock_t dl_lock;			/* protect the values */
++
++	uint64_t dl_space_used;			/* used space in bytes */
++	uint64_t dl_space_total;		/* maximum space in bytes */
++	uint32_t dl_inodes_used;		/* used inodes */
++	uint32_t dl_inodes_total;		/* maximum inodes */
++
++	unsigned int dl_nrlmult;		/* non root limit mult */
++};
++
++struct rcu_head;
++
++extern void rcu_free_dl_info(struct rcu_head *);
++extern void unhash_dl_info(struct dl_info *);
++
++extern struct dl_info *locate_dl_info(struct super_block *, xid_t);
++
++
++struct kstatfs;
++
++extern void vx_vsi_statfs(struct super_block *, struct kstatfs *);
++
++typedef uint64_t dlsize_t;
++
++#endif	/* __KERNEL__ */
++#else	/* _VX_DLIMIT_H */
++#warning duplicate inclusion
++#endif	/* _VX_DLIMIT_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/dlimit_cmd.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/dlimit_cmd.h
+@@ -0,0 +1,68 @@
++#ifndef _VX_DLIMIT_CMD_H
++#define _VX_DLIMIT_CMD_H
++
++/*  dlimit vserver commands */
++
++#define VCMD_add_dlimit		VC_CMD(DLIMIT, 1, 0)
++#define VCMD_rem_dlimit		VC_CMD(DLIMIT, 2, 0)
++
++#define VCMD_set_dlimit		VC_CMD(DLIMIT, 5, 0)
++#define VCMD_get_dlimit		VC_CMD(DLIMIT, 6, 0)
++
++struct	vcmd_ctx_dlimit_base_v0 {
++	const char __user *name;
++	uint32_t flags;
++};
++
++struct	vcmd_ctx_dlimit_v0 {
++	const char __user *name;
++	uint32_t space_used;			/* used space in kbytes */
++	uint32_t space_total;			/* maximum space in kbytes */
++	uint32_t inodes_used;			/* used inodes */
++	uint32_t inodes_total;			/* maximum inodes */
++	uint32_t reserved;			/* reserved for root in % */
++	uint32_t flags;
++};
++
++
++#ifdef	__KERNEL__
++
++#ifdef	CONFIG_COMPAT
++
++struct	vcmd_ctx_dlimit_base_v0_x32 {
++	compat_uptr_t name_ptr;
++	uint32_t flags;
++};
++
++struct	vcmd_ctx_dlimit_v0_x32 {
++	compat_uptr_t name_ptr;
++	uint32_t space_used;			/* used space in kbytes */
++	uint32_t space_total;			/* maximum space in kbytes */
++	uint32_t inodes_used;			/* used inodes */
++	uint32_t inodes_total;			/* maximum inodes */
++	uint32_t reserved;			/* reserved for root in % */
++	uint32_t flags;
++};
++
++#endif	/* CONFIG_COMPAT */
++
++#include <linux/compiler.h>
++
++extern int vc_add_dlimit(uint32_t, void __user *);
++extern int vc_rem_dlimit(uint32_t, void __user *);
++
++extern int vc_set_dlimit(uint32_t, void __user *);
++extern int vc_get_dlimit(uint32_t, void __user *);
++
++#ifdef	CONFIG_COMPAT
++
++extern int vc_add_dlimit_x32(uint32_t, void __user *);
++extern int vc_rem_dlimit_x32(uint32_t, void __user *);
++
++extern int vc_set_dlimit_x32(uint32_t, void __user *);
++extern int vc_get_dlimit_x32(uint32_t, void __user *);
++
++#endif	/* CONFIG_COMPAT */
++
++#endif	/* __KERNEL__ */
++#endif	/* _VX_DLIMIT_CMD_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/inode.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/inode.h
+@@ -0,0 +1,41 @@
++#ifndef _VX_INODE_H
++#define _VX_INODE_H
++
++
++#define IATTR_XID	0x01000000
++
++#define IATTR_ADMIN	0x00000001
++#define IATTR_WATCH	0x00000002
++#define IATTR_HIDE	0x00000004
++#define IATTR_FLAGS	0x00000007
++
++#define IATTR_BARRIER	0x00010000
++#define IATTR_IUNLINK	0x00020000
++#define IATTR_IMMUTABLE 0x00040000
++
++#ifdef	__KERNEL__
++
++#ifndef CONFIG_VSERVER
++#warning config options missing
++#endif
++
++#ifdef	CONFIG_VSERVER_PROC_SECURE
++#define IATTR_PROC_DEFAULT	( IATTR_ADMIN | IATTR_HIDE )
++#define IATTR_PROC_SYMLINK	( IATTR_ADMIN )
++#else
++#define IATTR_PROC_DEFAULT	( IATTR_ADMIN )
++#define IATTR_PROC_SYMLINK	( IATTR_ADMIN )
++#endif
++
++#define vx_hide_check(c,m)	(((m) & IATTR_HIDE) ? vx_check(c,m) : 1)
++
++#endif	/* __KERNEL__ */
++
++/* inode ioctls */
++
++#define FIOC_GETXFLG	_IOR('x', 5, long)
++#define FIOC_SETXFLG	_IOW('x', 6, long)
++
++#else	/* _VX_INODE_H */
++#warning duplicate inclusion
++#endif	/* _VX_INODE_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/inode_cmd.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/inode_cmd.h
+@@ -0,0 +1,57 @@
++#ifndef _VX_INODE_CMD_H
++#define _VX_INODE_CMD_H
++
++/*  inode vserver commands */
++
++#define VCMD_get_iattr_v0	VC_CMD(INODE, 1, 0)
++#define VCMD_set_iattr_v0	VC_CMD(INODE, 2, 0)
++
++#define VCMD_get_iattr		VC_CMD(INODE, 1, 1)
++#define VCMD_set_iattr		VC_CMD(INODE, 2, 1)
++
++struct	vcmd_ctx_iattr_v0 {
++	/* device handle in id */
++	uint64_t ino;
++	uint32_t xid;
++	uint32_t flags;
++	uint32_t mask;
++};
++
++struct	vcmd_ctx_iattr_v1 {
++	const char __user *name;
++	uint32_t xid;
++	uint32_t flags;
++	uint32_t mask;
++};
++
++
++#ifdef	__KERNEL__
++
++#ifdef	CONFIG_COMPAT
++
++struct	vcmd_ctx_iattr_v1_x32 {
++	compat_uptr_t name_ptr;
++	uint32_t xid;
++	uint32_t flags;
++	uint32_t mask;
++};
++
++#endif	/* CONFIG_COMPAT */
++
++#include <linux/compiler.h>
++
++extern int vc_get_iattr_v0(uint32_t, void __user *);
++extern int vc_set_iattr_v0(uint32_t, void __user *);
++
++extern int vc_get_iattr(uint32_t, void __user *);
++extern int vc_set_iattr(uint32_t, void __user *);
++
++#ifdef	CONFIG_COMPAT
++
++extern int vc_get_iattr_x32(uint32_t, void __user *);
++extern int vc_set_iattr_x32(uint32_t, void __user *);
++
++#endif	/* CONFIG_COMPAT */
++
++#endif	/* __KERNEL__ */
++#endif	/* _VX_INODE_CMD_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/legacy.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/legacy.h
+@@ -0,0 +1,48 @@
++#ifndef _VX_LEGACY_H
++#define _VX_LEGACY_H
++
++#include "switch.h"
++
++/*  compatibiliy vserver commands */
++
++#define VCMD_new_s_context	VC_CMD(COMPAT, 1, 1)
++#define VCMD_set_ipv4root	VC_CMD(COMPAT, 2, 3)
++
++#define VCMD_create_context	VC_CMD(VSETUP, 1, 0)
++
++/*  compatibiliy vserver arguments */
++
++struct	vcmd_new_s_context_v1 {
++	uint32_t remove_cap;
++	uint32_t flags;
++};
++
++struct	vcmd_set_ipv4root_v3 {
++	/* number of pairs in id */
++	uint32_t broadcast;
++	struct {
++		uint32_t ip;
++		uint32_t mask;
++	} nx_mask_pair[NB_IPV4ROOT];
++};
++
++
++#define VX_INFO_LOCK		1	/* Can't request a new vx_id */
++#define VX_INFO_NPROC		4	/* Limit number of processes in a context */
++#define VX_INFO_PRIVATE		8	/* Noone can join this security context */
++#define VX_INFO_INIT		16	/* This process wants to become the */
++					/* logical process 1 of the security */
++					/* context */
++#define VX_INFO_HIDEINFO	32	/* Hide some information in /proc */
++#define VX_INFO_ULIMIT		64	/* Use ulimit of the current process */
++					/* to become the global limits */
++					/* of the context */
++#define VX_INFO_NAMESPACE	128	/* save private namespace */
++
++
++#ifdef	__KERNEL__
++extern int vc_new_s_context(uint32_t, void __user *);
++extern int vc_set_ipv4root(uint32_t, void __user *);
++
++#endif	/* __KERNEL__ */
++#endif	/* _VX_LEGACY_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/limit.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/limit.h
+@@ -0,0 +1,20 @@
++#ifndef _VX_LIMIT_H
++#define _VX_LIMIT_H
++
++
++#define VLIMIT_NSOCK	16
++#define VLIMIT_OPENFD	17
++#define VLIMIT_ANON	18
++#define VLIMIT_SHMEM	19
++
++#ifdef	__KERNEL__
++
++struct sysinfo;
++
++void vx_vsi_meminfo(struct sysinfo *);
++void vx_vsi_swapinfo(struct sysinfo *);
++
++#define NUM_LIMITS	24
++
++#endif	/* __KERNEL__ */
++#endif	/* _VX_LIMIT_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/limit_cmd.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/limit_cmd.h
+@@ -0,0 +1,36 @@
++#ifndef _VX_LIMIT_CMD_H
++#define _VX_LIMIT_CMD_H
++
++/*  rlimit vserver commands */
++
++#define VCMD_get_rlimit		VC_CMD(RLIMIT, 1, 0)
++#define VCMD_set_rlimit		VC_CMD(RLIMIT, 2, 0)
++#define VCMD_get_rlimit_mask	VC_CMD(RLIMIT, 3, 0)
++
++struct	vcmd_ctx_rlimit_v0 {
++	uint32_t id;
++	uint64_t minimum;
++	uint64_t softlimit;
++	uint64_t maximum;
++};
++
++struct	vcmd_ctx_rlimit_mask_v0 {
++	uint32_t minimum;
++	uint32_t softlimit;
++	uint32_t maximum;
++};
++
++#define CRLIM_UNSET		(0ULL)
++#define CRLIM_INFINITY		(~0ULL)
++#define CRLIM_KEEP		(~1ULL)
++
++#ifdef	__KERNEL__
++
++#include <linux/compiler.h>
++
++extern int vc_get_rlimit(uint32_t, void __user *);
++extern int vc_set_rlimit(uint32_t, void __user *);
++extern int vc_get_rlimit_mask(uint32_t, void __user *);
++
++#endif	/* __KERNEL__ */
++#endif	/* _VX_LIMIT_CMD_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/limit_def.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/limit_def.h
+@@ -0,0 +1,21 @@
++#ifndef _VX_LIMIT_DEF_H
++#define _VX_LIMIT_DEF_H
++
++#include <asm/atomic.h>
++#include <asm/resource.h>
++
++#include "limit.h"
++
++/* context sub struct */
++
++struct _vx_limit {
++	atomic_t ticks;
++
++	unsigned long rlim[NUM_LIMITS];		/* Context limit */
++	unsigned long rmax[NUM_LIMITS];		/* Context maximum */
++	atomic_t rcur[NUM_LIMITS];		/* Current value */
++	atomic_t lhit[NUM_LIMITS];		/* Limit hits */
++};
++
++
++#endif	/* _VX_LIMIT_DEF_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/limit_int.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/limit_int.h
+@@ -0,0 +1,74 @@
++#ifndef _VX_LIMIT_INT_H
++#define _VX_LIMIT_INT_H
++
++#ifdef	__KERNEL__
++
++#define VXD_RLIMIT(r)	VXD_CBIT(limit, (r))
++
++extern const char *vlimit_name[NUM_LIMITS];
++
++static inline void __vx_acc_cres(struct vx_info *vxi,
++	int res, int dir, void *_data, char *_file, int _line)
++{
++	if (VXD_RLIMIT(res))
++		vxlprintk(1, "vx_acc_cres[%5d,%s,%2d]: %5d%s (%p)",
++			(vxi ? vxi->vx_id : -1), vlimit_name[res], res,
++			(vxi ? atomic_read(&vxi->limit.rcur[res]) : 0),
++			(dir > 0) ? "++" : "--", _data, _file, _line);
++	if (!vxi)
++		return;
++
++	if (dir > 0)
++		atomic_inc(&vxi->limit.rcur[res]);
++	else
++		atomic_dec(&vxi->limit.rcur[res]);
++}
++
++static inline void __vx_add_cres(struct vx_info *vxi,
++	int res, int amount, void *_data, char *_file, int _line)
++{
++	if (VXD_RLIMIT(res))
++		vxlprintk(1, "vx_add_cres[%5d,%s,%2d]: %5d += %5d (%p)",
++			(vxi ? vxi->vx_id : -1), vlimit_name[res], res,
++			(vxi ? atomic_read(&vxi->limit.rcur[res]) : 0),
++			amount, _data, _file, _line);
++	if (amount == 0)
++		return;
++	if (!vxi)
++		return;
++	atomic_add(amount, &vxi->limit.rcur[res]);
++}
++
++static inline int __vx_cres_avail(struct vx_info *vxi,
++		int res, int num, char *_file, int _line)
++{
++	unsigned long value;
++
++	if (VXD_RLIMIT(res))
++		vxlprintk(1, "vx_cres_avail[%5d,%s,%2d]: %5ld > %5d + %5d",
++			(vxi ? vxi->vx_id : -1), vlimit_name[res], res,
++			(vxi ? vxi->limit.rlim[res] : 1),
++			(vxi ? atomic_read(&vxi->limit.rcur[res]) : 0),
++			num, _file, _line);
++	if (num == 0)
++		return 1;
++	if (!vxi)
++		return 1;
++
++	value = atomic_read(&vxi->limit.rcur[res]);
++
++	if (value > vxi->limit.rmax[res])
++		vxi->limit.rmax[res] = value;
++
++	if (vxi->limit.rlim[res] == RLIM_INFINITY)
++		return 1;
++
++	if (value + num <= vxi->limit.rlim[res])
++		return 1;
++
++	atomic_inc(&vxi->limit.lhit[res]);
++	return 0;
++}
++
++#endif	/* __KERNEL__ */
++#endif	/* _VX_LIMIT_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/namespace.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/namespace.h
+@@ -0,0 +1,14 @@
++#ifndef _VX_NAMESPACE_H
++#define _VX_NAMESPACE_H
++
++#include <linux/types.h>
++
++struct vx_info;
++struct namespace;
++struct fs_struct;
++
++extern int vx_set_namespace(struct vx_info *, struct namespace *, struct fs_struct *);
++
++#else	/* _VX_NAMESPACE_H */
++#warning duplicate inclusion
++#endif	/* _VX_NAMESPACE_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/namespace_cmd.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/namespace_cmd.h
+@@ -0,0 +1,16 @@
++#ifndef _VX_NAMESPACE_CMD_H
++#define _VX_NAMESPACE_CMD_H
++
++#define VCMD_enter_namespace	VC_CMD(PROCALT, 1, 0)
++#define VCMD_cleanup_namespace	VC_CMD(PROCALT, 2, 0)
++#define VCMD_set_namespace	VC_CMD(PROCALT, 3, 0)
++
++
++#ifdef	__KERNEL__
++
++extern int vc_enter_namespace(uint32_t, void __user *);
++extern int vc_cleanup_namespace(uint32_t, void __user *);
++extern int vc_set_namespace(uint32_t, void __user *);
++
++#endif	/* __KERNEL__ */
++#endif	/* _VX_NAMESPACE_CMD_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/network.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/network.h
+@@ -0,0 +1,96 @@
++#ifndef _VX_NETWORK_H
++#define _VX_NETWORK_H
++
++#include <linux/types.h>
++
++
++#define MAX_N_CONTEXT	65535	/* Arbitrary limit */
++
++#define NX_DYNAMIC_ID	((uint32_t)-1)		/* id for dynamic context */
++
++#define NB_IPV4ROOT	16
++
++
++/* network flags */
++
++#define NXF_STATE_SETUP		(1ULL<<32)
++
++#define NXF_STATE_HELPER	(1ULL<<36)
++
++#define NXF_ONE_TIME		(0x0001ULL<<32)
++
++#define NXF_INIT_SET		(0)
++
++
++/* address types */
++
++#define NXA_TYPE_IPV4		1
++#define NXA_TYPE_IPV6		2
++
++#define NXA_MOD_BCAST		(1<<8)
++
++#define NXA_TYPE_ANY		(~0)
++
++
++#ifdef	__KERNEL__
++
++#include <linux/list.h>
++#include <linux/spinlock.h>
++#include <linux/rcupdate.h>
++#include <asm/atomic.h>
++
++
++struct nx_info {
++	struct hlist_node nx_hlist;	/* linked list of nxinfos */
++	nid_t nx_id;			/* vnet id */
++	atomic_t nx_usecnt;		/* usage count */
++	atomic_t nx_tasks;		/* tasks count */
++	int nx_state;			/* context state */
++
++	uint64_t nx_flags;		/* network flag word */
++	uint64_t nx_ncaps;		/* network capabilities */
++
++	int nbipv4;
++	__u32 ipv4[NB_IPV4ROOT];	/* Process can only bind to these IPs */
++					/* The first one is used to connect */
++					/* and for bind any service */
++					/* The other must be used explicity */
++	__u32 mask[NB_IPV4ROOT];	/* Netmask for each ipv4 */
++					/* Used to select the proper source */
++					/* address for sockets */
++	__u32 v4_bcast;			/* Broadcast address to receive UDP  */
++
++	char nx_name[65];		/* network context name */
++};
++
++
++/* status flags */
++
++#define NXS_HASHED      0x0001
++#define NXS_SHUTDOWN    0x0100
++#define NXS_RELEASED    0x8000
++
++extern struct nx_info *locate_nx_info(int);
++extern struct nx_info *locate_or_create_nx_info(int);
++
++extern int get_nid_list(int, unsigned int *, int);
++extern int nid_is_hashed(nid_t);
++
++extern int nx_migrate_task(struct task_struct *, struct nx_info *);
++
++extern long vs_net_change(struct nx_info *, unsigned int);
++
++struct in_ifaddr;
++struct net_device;
++
++int ifa_in_nx_info(struct in_ifaddr *, struct nx_info *);
++int dev_in_nx_info(struct net_device *, struct nx_info *);
++
++struct sock;
++
++int nx_addr_conflict(struct nx_info *, uint32_t, struct sock *);
++
++#endif	/* __KERNEL__ */
++#else	/* _VX_NETWORK_H */
++#warning duplicate inclusion
++#endif	/* _VX_NETWORK_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/network_cmd.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/network_cmd.h
+@@ -0,0 +1,89 @@
++#ifndef _VX_NETWORK_CMD_H
++#define _VX_NETWORK_CMD_H
++
++
++/* vinfo commands */
++
++#define VCMD_task_nid		VC_CMD(VINFO, 2, 0)
++
++#ifdef	__KERNEL__
++extern int vc_task_nid(uint32_t, void __user *);
++
++#endif	/* __KERNEL__ */
++
++#define VCMD_nx_info		VC_CMD(VINFO, 6, 0)
++
++struct	vcmd_nx_info_v0 {
++	uint32_t nid;
++	/* more to come */
++};
++
++#ifdef	__KERNEL__
++extern int vc_nx_info(uint32_t, void __user *);
++
++#endif	/* __KERNEL__ */
++
++#define VCMD_net_create_v0	VC_CMD(VNET, 1, 0)
++#define VCMD_net_create		VC_CMD(VNET, 1, 1)
++
++struct  vcmd_net_create {
++	uint64_t flagword;
++};
++
++#define VCMD_net_migrate	VC_CMD(NETMIG, 1, 0)
++
++#define VCMD_net_add		VC_CMD(NETALT, 1, 0)
++#define VCMD_net_remove		VC_CMD(NETALT, 2, 0)
++
++struct	vcmd_net_addr_v0 {
++	uint16_t type;
++	uint16_t count;
++	uint32_t ip[4];
++	uint32_t mask[4];
++	/* more to come */
++};
++
++
++#ifdef	__KERNEL__
++extern int vc_net_create(uint32_t, void __user *);
++extern int vc_net_migrate(uint32_t, void __user *);
++
++extern int vc_net_add(uint32_t, void __user *);
++extern int vc_net_remove(uint32_t, void __user *);
++
++#endif	/* __KERNEL__ */
++
++
++/* flag commands */
++
++#define VCMD_get_nflags		VC_CMD(FLAGS, 5, 0)
++#define VCMD_set_nflags		VC_CMD(FLAGS, 6, 0)
++
++struct	vcmd_net_flags_v0 {
++	uint64_t flagword;
++	uint64_t mask;
++};
++
++#ifdef	__KERNEL__
++extern int vc_get_nflags(uint32_t, void __user *);
++extern int vc_set_nflags(uint32_t, void __user *);
++
++#endif	/* __KERNEL__ */
++
++
++/* network caps commands */
++
++#define VCMD_get_ncaps		VC_CMD(FLAGS, 7, 0)
++#define VCMD_set_ncaps		VC_CMD(FLAGS, 8, 0)
++
++struct	vcmd_net_caps_v0 {
++	uint64_t ncaps;
++	uint64_t cmask;
++};
++
++#ifdef	__KERNEL__
++extern int vc_get_ncaps(uint32_t, void __user *);
++extern int vc_set_ncaps(uint32_t, void __user *);
++
++#endif	/* __KERNEL__ */
++#endif	/* _VX_CONTEXT_CMD_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/sched.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/sched.h
+@@ -0,0 +1,25 @@
++#ifndef _VX_SCHED_H
++#define _VX_SCHED_H
++
++#ifdef	__KERNEL__
++
++struct timespec;
++
++void vx_vsi_uptime(struct timespec *, struct timespec *);
++
++
++struct vx_info;
++
++void vx_update_load(struct vx_info *);
++
++
++struct task_struct;
++
++int vx_effective_vavavoom(struct vx_info *, int);
++
++int vx_tokens_recalc(struct vx_info *);
++
++#endif	/* __KERNEL__ */
++#else	/* _VX_SCHED_H */
++#warning duplicate inclusion
++#endif	/* _VX_SCHED_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/sched_cmd.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/sched_cmd.h
+@@ -0,0 +1,47 @@
++#ifndef _VX_SCHED_CMD_H
++#define _VX_SCHED_CMD_H
++
++/*  sched vserver commands */
++
++#define VCMD_set_sched_v2	VC_CMD(SCHED, 1, 2)
++#define VCMD_set_sched		VC_CMD(SCHED, 1, 3)
++
++struct	vcmd_set_sched_v2 {
++	int32_t fill_rate;
++	int32_t interval;
++	int32_t tokens;
++	int32_t tokens_min;
++	int32_t tokens_max;
++	uint64_t cpu_mask;
++};
++
++struct	vcmd_set_sched_v3 {
++	uint32_t set_mask;
++	int32_t fill_rate;
++	int32_t interval;
++	int32_t tokens;
++	int32_t tokens_min;
++	int32_t tokens_max;
++	int32_t priority_bias;
++};
++
++
++#define VXSM_FILL_RATE		0x0001
++#define VXSM_INTERVAL		0x0002
++#define VXSM_TOKENS		0x0010
++#define VXSM_TOKENS_MIN		0x0020
++#define VXSM_TOKENS_MAX		0x0040
++#define VXSM_PRIO_BIAS		0x0100
++
++#define SCHED_KEEP		(-2)
++
++#ifdef	__KERNEL__
++
++#include <linux/compiler.h>
++
++extern int vc_set_sched_v1(uint32_t, void __user *);
++extern int vc_set_sched_v2(uint32_t, void __user *);
++extern int vc_set_sched(uint32_t, void __user *);
++
++#endif	/* __KERNEL__ */
++#endif	/* _VX_SCHED_CMD_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/sched_def.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/sched_def.h
+@@ -0,0 +1,38 @@
++#ifndef _VX_SCHED_DEF_H
++#define _VX_SCHED_DEF_H
++
++#include <linux/spinlock.h>
++#include <linux/jiffies.h>
++#include <linux/cpumask.h>
++#include <asm/atomic.h>
++#include <asm/param.h>
++
++
++struct _vx_ticks {
++	uint64_t user_ticks;		/* token tick events */
++	uint64_t sys_ticks;		/* token tick events */
++	uint64_t hold_ticks;		/* token ticks paused */
++	uint64_t unused[5];		/* cacheline ? */
++};
++
++/* context sub struct */
++
++struct _vx_sched {
++	atomic_t tokens;		/* number of CPU tokens */
++	spinlock_t tokens_lock;		/* lock for token bucket */
++
++	int fill_rate;			/* Fill rate: add X tokens... */
++	int interval;			/* Divisor:   per Y jiffies   */
++	int tokens_min;			/* Limit:     minimum for unhold */
++	int tokens_max;			/* Limit:     no more than N tokens */
++	uint32_t jiffies;		/* last time accounted */
++
++	int priority_bias;		/* bias offset for priority */
++	int vavavoom;			/* last calculated vavavoom */
++
++	cpumask_t cpus_allowed;		/* cpu mask for context */
++
++	struct _vx_ticks cpu[NR_CPUS];
++};
++
++#endif	/* _VX_SCHED_DEF_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/signal_cmd.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/signal_cmd.h
+@@ -0,0 +1,25 @@
++#ifndef _VX_SIGNAL_CMD_H
++#define _VX_SIGNAL_CMD_H
++
++/*  signalling vserver commands */
++
++#define VCMD_ctx_kill		VC_CMD(PROCTRL, 1, 0)
++#define VCMD_wait_exit		VC_CMD(EVENT, 99, 0)
++
++struct	vcmd_ctx_kill_v0 {
++	int32_t pid;
++	int32_t sig;
++};
++
++struct	vcmd_wait_exit_v0 {
++	int32_t a;
++	int32_t b;
++};
++
++#ifdef	__KERNEL__
++
++extern int vc_ctx_kill(uint32_t, void __user *);
++extern int vc_wait_exit(uint32_t, void __user *);
++
++#endif	/* __KERNEL__ */
++#endif	/* _VX_SIGNAL_CMD_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/switch.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/switch.h
+@@ -0,0 +1,97 @@
++#ifndef _VX_SWITCH_H
++#define _VX_SWITCH_H
++
++#include <linux/types.h>
++
++#define VC_CATEGORY(c)		(((c) >> 24) & 0x3F)
++#define VC_COMMAND(c)		(((c) >> 16) & 0xFF)
++#define VC_VERSION(c)		((c) & 0xFFF)
++
++#define VC_CMD(c,i,v)		((((VC_CAT_ ## c) & 0x3F) << 24) \
++				| (((i) & 0xFF) << 16) | ((v) & 0xFFF))
++
++/*
++
++  Syscall Matrix V2.8
++
++	 |VERSION|CREATE |MODIFY |MIGRATE|CONTROL|EXPERIM| |SPECIAL|SPECIAL|
++	 |STATS  |DESTROY|ALTER  |CHANGE |LIMIT  |TEST   | |       |       |
++	 |INFO   |SETUP  |       |MOVE   |       |       | |       |       |
++  -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++  SYSTEM |VERSION|VSETUP |VHOST  |       |       |       | |DEVICES|       |
++  HOST   |     00|     01|     02|     03|     04|     05| |     06|     07|
++  -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++  CPU    |       |VPROC  |PROCALT|PROCMIG|PROCTRL|       | |SCHED. |       |
++  PROCESS|     08|     09|     10|     11|     12|     13| |     14|     15|
++  -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++  MEMORY |       |       |       |       |       |       | |SWAP   |       |
++	 |     16|     17|     18|     19|     20|     21| |     22|     23|
++  -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++  NETWORK|       |VNET   |NETALT |NETMIG |NETCTL |       | |SERIAL |       |
++	 |     24|     25|     26|     27|     28|     29| |     30|     31|
++  -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++  DISK   |       |       |       |       |DLIMIT |       | |INODE  |       |
++  VFS    |     32|     33|     34|     35|     36|     37| |     38|     39|
++  -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++  OTHER  |       |       |       |       |       |       | |VINFO  |       |
++	 |     40|     41|     42|     43|     44|     45| |     46|     47|
++  =======+=======+=======+=======+=======+=======+=======+ +=======+=======+
++  SPECIAL|EVENT  |       |       |       |FLAGS  |       | |       |       |
++	 |     48|     49|     50|     51|     52|     53| |     54|     55|
++  -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++  SPECIAL|DEBUG  |       |       |       |RLIMIT |SYSCALL| |       |COMPAT |
++	 |     56|     57|     58|     59|     60|TEST 61| |     62|     63|
++  -------+-------+-------+-------+-------+-------+-------+ +-------+-------+
++
++*/
++
++#define VC_CAT_VERSION		0
++
++#define VC_CAT_VSETUP		1
++#define VC_CAT_VHOST		2
++
++#define VC_CAT_VPROC		9
++#define VC_CAT_PROCALT		10
++#define VC_CAT_PROCMIG		11
++#define VC_CAT_PROCTRL		12
++
++#define VC_CAT_SCHED		14
++
++#define VC_CAT_VNET		25
++#define VC_CAT_NETALT		26
++#define VC_CAT_NETMIG		27
++#define VC_CAT_NETCTRL		28
++
++#define VC_CAT_DLIMIT		36
++#define VC_CAT_INODE		38
++
++#define VC_CAT_VINFO		46
++#define VC_CAT_EVENT		48
++
++#define VC_CAT_FLAGS		52
++#define VC_CAT_DEBUG		56
++#define VC_CAT_RLIMIT		60
++
++#define VC_CAT_SYSTEST		61
++#define VC_CAT_COMPAT		63
++
++/*  interface version */
++
++#define VCI_VERSION		0x00020001
++#define VCI_LEGACY_VERSION	0x000100FF
++
++/*  query version */
++
++#define VCMD_get_version	VC_CMD(VERSION, 0, 0)
++
++
++#ifdef	__KERNEL__
++
++#include <linux/errno.h>
++
++
++#else	/* __KERNEL__ */
++#define __user
++#endif	/* __KERNEL__ */
++
++#endif	/* _VX_SWITCH_H */
+Index: vserver-sources-2.0.1_2.6.15/include/linux/vserver/xid.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/include/linux/vserver/xid.h
+@@ -0,0 +1,147 @@
++#ifndef _VX_XID_H
++#define _VX_XID_H
++
++#ifndef CONFIG_VSERVER
++#warning config options missing
++#endif
++
++#define XID_TAG(in)	(IS_TAGXID(in))
++
++
++#ifdef CONFIG_XID_TAG_NFSD
++#define XID_TAG_NFSD	1
++#else
++#define XID_TAG_NFSD	0
++#endif
++
++
++#ifdef CONFIG_INOXID_NONE
++
++#define MAX_UID		0xFFFFFFFF
++#define MAX_GID		0xFFFFFFFF
++
++#define INOXID_XID(tag, uid, gid, xid)	(0)
++
++#define XIDINO_UID(tag, uid, xid)	(uid)
++#define XIDINO_GID(tag, gid, xid)	(gid)
++
++#endif
++
++
++#ifdef CONFIG_INOXID_GID16
++
++#define MAX_UID		0xFFFFFFFF
++#define MAX_GID		0x0000FFFF
++
++#define INOXID_XID(tag, uid, gid, xid)	\
++	((tag) ? (((gid) >> 16) & 0xFFFF) : 0)
++
++#define XIDINO_UID(tag, uid, xid)	(uid)
++#define XIDINO_GID(tag, gid, xid)	\
++	((tag) ? (((gid) & 0xFFFF) | ((xid) << 16)) : (gid))
++
++#endif
++
++
++#ifdef CONFIG_INOXID_UGID24
++
++#define MAX_UID		0x00FFFFFF
++#define MAX_GID		0x00FFFFFF
++
++#define INOXID_XID(tag, uid, gid, xid)	\
++	((tag) ? ((((uid) >> 16) & 0xFF00) | (((gid) >> 24) & 0xFF)) : 0)
++
++#define XIDINO_UID(tag, uid, xid)	\
++	((tag) ? (((uid) & 0xFFFFFF) | (((xid) & 0xFF00) << 16)) : (uid))
++#define XIDINO_GID(tag, gid, xid)	\
++	((tag) ? (((gid) & 0xFFFFFF) | (((xid) & 0x00FF) << 24)) : (gid))
++
++#endif
++
++
++#ifdef CONFIG_INOXID_UID16
++
++#define MAX_UID		0x0000FFFF
++#define MAX_GID		0xFFFFFFFF
++
++#define INOXID_XID(tag, uid, gid, xid)	\
++	((tag) ? (((uid) >> 16) & 0xFFFF) : 0)
++
++#define XIDINO_UID(tag, uid, xid)	\
++	((tag) ? (((uid) & 0xFFFF) | ((xid) << 16)) : (uid))
++#define XIDINO_GID(tag, gid, xid)	(gid)
++
++#endif
++
++
++#ifdef CONFIG_INOXID_INTERN
++
++#define MAX_UID		0xFFFFFFFF
++#define MAX_GID		0xFFFFFFFF
++
++#define INOXID_XID(tag, uid, gid, xid)	\
++	((tag) ? (xid) : 0)
++
++#define XIDINO_UID(tag, uid, xid)	(uid)
++#define XIDINO_GID(tag, gid, xid)	(gid)
++
++#endif
++
++
++#ifdef CONFIG_INOXID_RUNTIME
++
++#define MAX_UID		0xFFFFFFFF
++#define MAX_GID		0xFFFFFFFF
++
++#define INOXID_XID(tag, uid, gid, xid)	(0)
++
++#define XIDINO_UID(tag, uid, xid)	(uid)
++#define XIDINO_GID(tag, gid, xid)	(gid)
++
++#endif
++
++
++#ifndef CONFIG_INOXID_NONE
++#define vx_current_fsxid(sb)	\
++	((sb)->s_flags & MS_TAGXID ? current->xid : 0)
++#else
++#define vx_current_fsxid(sb)	(0)
++#endif
++
++#ifndef CONFIG_INOXID_INTERN
++#define XIDINO_XID(tag, xid)	(0)
++#else
++#define XIDINO_XID(tag, xid)	((tag) ? (xid) : 0)
++#endif
++
++#define INOXID_UID(tag, uid, gid)	\
++	((tag) ? ((uid) & MAX_UID) : (uid))
++#define INOXID_GID(tag, uid, gid)	\
++	((tag) ? ((gid) & MAX_GID) : (gid))
++
++
++static inline uid_t vx_map_uid(uid_t uid)
++{
++	if ((uid > MAX_UID) && (uid != -1))
++		uid = -2;
++	return (uid & MAX_UID);
++}
++
++static inline gid_t vx_map_gid(gid_t gid)
++{
++	if ((gid > MAX_GID) && (gid != -1))
++		gid = -2;
++	return (gid & MAX_GID);
++}
++
++
++#ifdef	CONFIG_VSERVER_LEGACY
++#define FIOC_GETXID	_IOR('x', 1, long)
++#define FIOC_SETXID	_IOW('x', 2, long)
++#define FIOC_SETXIDJ	_IOW('x', 3, long)
++#endif
++
++int vx_parse_xid(char *string, xid_t *xid, int remove);
++void vx_propagate_xid(struct nameidata *nd, struct inode *inode);
++
++#endif /* _VX_XID_H */
+Index: vserver-sources-2.0.1_2.6.15/include/net/af_unix.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/net/af_unix.h
++++ vserver-sources-2.0.1_2.6.15/include/net/af_unix.h
+@@ -17,9 +17,9 @@ extern rwlock_t unix_table_lock;
+ 
+ extern atomic_t unix_tot_inflight;
+ 
+-static inline struct sock *first_unix_socket(int *i)
++static inline struct sock *next_unix_socket_table(int *i)
+ {
+-	for (*i = 0; *i <= UNIX_HASH_SIZE; (*i)++) {
++	for ((*i)++; *i <= UNIX_HASH_SIZE; (*i)++) {
+ 		if (!hlist_empty(&unix_socket_table[*i]))
+ 			return __sk_head(&unix_socket_table[*i]);
+ 	}
+@@ -28,16 +28,19 @@ static inline struct sock *first_unix_so
+ 
+ static inline struct sock *next_unix_socket(int *i, struct sock *s)
+ {
+-	struct sock *next = sk_next(s);
+-	/* More in this chain? */
+-	if (next)
+-		return next;
+-	/* Look for next non-empty chain. */
+-	for ((*i)++; *i <= UNIX_HASH_SIZE; (*i)++) {
+-		if (!hlist_empty(&unix_socket_table[*i]))
+-			return __sk_head(&unix_socket_table[*i]);
+-	}
+-	return NULL;
++	do {
++		if (s)
++			s = sk_next(s);
++		if (!s)
++			s = next_unix_socket_table(i);
++	} while (s && !vx_check(s->sk_xid, VX_IDENT|VX_WATCH));
++	return s;
++}
++
++static inline struct sock *first_unix_socket(int *i)
++{
++	*i = 0;
++	return next_unix_socket(i, NULL);
+ }
+ 
+ #define forall_unix_sockets(i, s) \
+Index: vserver-sources-2.0.1_2.6.15/include/net/inet_hashtables.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/net/inet_hashtables.h
++++ vserver-sources-2.0.1_2.6.15/include/net/inet_hashtables.h
+@@ -291,6 +291,25 @@ static inline int inet_iif(const struct 
+ 	return ((struct rtable *)skb->dst)->rt_iif;
+ }
+ 
++/*
++ *      Check if a given address matches for an inet socket
++ *
++ *      nxi:	the socket's nx_info if any
++ *      addr:	to be verified address
++ *      saddr:	socket addresses
++ */
++static inline int inet_addr_match (
++	struct nx_info *nxi,
++	uint32_t addr,
++	uint32_t saddr)
++{
++	if (addr && (saddr == addr))
++		return 1;
++	if (!saddr)
++		return addr_in_nx_info(nxi, addr);
++	return 0;
++}
++
+ extern struct sock *__inet_lookup_listener(const struct hlist_head *head,
+ 					   const u32 daddr,
+ 					   const unsigned short hnum,
+@@ -311,7 +330,7 @@ static inline struct sock *
+ 		const struct inet_sock *inet = inet_sk((sk = __sk_head(head)));
+ 
+ 		if (inet->num == hnum && !sk->sk_node.next &&
+-		    (!inet->rcv_saddr || inet->rcv_saddr == daddr) &&
++		    inet_addr_match(sk->sk_nx_info, daddr, inet->rcv_saddr) &&
+ 		    (sk->sk_family == PF_INET || !ipv6_only_sock(sk)) &&
+ 		    !sk->sk_bound_dev_if)
+ 			goto sherry_cache;
+Index: vserver-sources-2.0.1_2.6.15/include/net/inet_timewait_sock.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/net/inet_timewait_sock.h
++++ vserver-sources-2.0.1_2.6.15/include/net/inet_timewait_sock.h
+@@ -115,6 +115,10 @@ struct inet_timewait_sock {
+ #define tw_refcnt		__tw_common.skc_refcnt
+ #define tw_hash			__tw_common.skc_hash
+ #define tw_prot			__tw_common.skc_prot
++#define tw_xid		__tw_common.skc_xid
++#define tw_vx_info		__tw_common.skc_vx_info
++#define tw_nid		__tw_common.skc_nid
++#define tw_nx_info		__tw_common.skc_nx_info
+ 	volatile unsigned char	tw_substate;
+ 	/* 3 bits hole, try to pack */
+ 	unsigned char		tw_rcv_wscale;
+Index: vserver-sources-2.0.1_2.6.15/include/net/route.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/net/route.h
++++ vserver-sources-2.0.1_2.6.15/include/net/route.h
+@@ -33,6 +33,7 @@
+ #include <linux/route.h>
+ #include <linux/ip.h>
+ #include <linux/cache.h>
++#include <linux/vs_network.h>
+ 
+ #ifndef __KERNEL__
+ #warning This file is not supposed to be used outside of kernel.
+@@ -144,6 +145,59 @@ static inline char rt_tos2priority(u8 to
+ 	return ip_tos2prio[IPTOS_TOS(tos)>>1];
+ }
+ 
++#define IPI_LOOPBACK	htonl(INADDR_LOOPBACK)
++
++static inline int ip_find_src(struct nx_info *nxi, struct rtable **rp, struct flowi *fl)
++{
++	int err;
++	int i, n = nxi->nbipv4;
++	u32 ipv4root = nxi->ipv4[0];
++
++	if (ipv4root == 0)
++		return 0;
++
++	if (fl->fl4_src == 0) {
++		if (n > 1) {
++			u32 foundsrc;
++
++			err = __ip_route_output_key(rp, fl);
++			if (err) {
++				fl->fl4_src = ipv4root;
++				err = __ip_route_output_key(rp, fl);
++			}
++			if (err)
++				return err;
++
++			foundsrc = (*rp)->rt_src;
++			ip_rt_put(*rp);
++
++			for (i=0; i<n; i++){
++				u32 mask = nxi->mask[i];
++				u32 ipv4 = nxi->ipv4[i];
++				u32 net4 = ipv4 & mask;
++
++				if (foundsrc == ipv4) {
++					fl->fl4_src = ipv4;
++					break;
++				}
++				if (!fl->fl4_src && (foundsrc & mask) == net4)
++					fl->fl4_src = ipv4;
++			}
++		}
++		if (fl->fl4_src == 0)
++			fl->fl4_src = (fl->fl4_dst == IPI_LOOPBACK)
++				? IPI_LOOPBACK : ipv4root;
++	} else {
++		for (i=0; i<n; i++) {
++			if (nxi->ipv4[i] == fl->fl4_src)
++				break;
++		}
++		if (i == n)
++			return -EPERM;
++	}
++	return 0;
++}
++
+ static inline int ip_route_connect(struct rtable **rp, u32 dst,
+ 				   u32 src, u32 tos, int oif, u8 protocol,
+ 				   u16 sport, u16 dport, struct sock *sk)
+@@ -158,7 +212,23 @@ static inline int ip_route_connect(struc
+ 					 .dport = dport } } };
+ 
+ 	int err;
+-	if (!dst || !src) {
++	struct nx_info *nx_info = current->nx_info;
++
++	if (sk)
++		nx_info = sk->sk_nx_info;
++	vxdprintk(VXD_CBIT(net, 4),
++		"ip_route_connect(%p) %p,%p;%lx",
++		sk, nx_info, sk->sk_socket,
++		(sk->sk_socket?sk->sk_socket->flags:0));
++
++	if (nx_info) {
++		err = ip_find_src(nx_info, rp, &fl);
++		if (err)
++			return err;
++		if (fl.fl4_dst == IPI_LOOPBACK && !vx_check(0, VX_ADMIN))
++			fl.fl4_dst = nx_info->ipv4[0];
++	}
++	if (!fl.fl4_dst || !fl.fl4_src) {
+ 		err = __ip_route_output_key(rp, &fl);
+ 		if (err)
+ 			return err;
+Index: vserver-sources-2.0.1_2.6.15/include/net/sock.h
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/include/net/sock.h
++++ vserver-sources-2.0.1_2.6.15/include/net/sock.h
+@@ -115,6 +115,10 @@ struct sock_common {
+ 	atomic_t		skc_refcnt;
+ 	unsigned int		skc_hash;
+ 	struct proto		*skc_prot;
++	xid_t			skc_xid;
++	struct vx_info	*skc_vx_info;
++	nid_t			skc_nid;
++	struct nx_info	*skc_nx_info;
+ };
+ 
+ /**
+@@ -189,6 +193,10 @@ struct sock {
+ #define sk_refcnt		__sk_common.skc_refcnt
+ #define sk_hash			__sk_common.skc_hash
+ #define sk_prot			__sk_common.skc_prot
++#define sk_xid			__sk_common.skc_xid
++#define sk_vx_info		__sk_common.skc_vx_info
++#define sk_nid			__sk_common.skc_nid
++#define sk_nx_info		__sk_common.skc_nx_info
+ 	unsigned char		sk_shutdown : 2,
+ 				sk_no_check : 2,
+ 				sk_userlocks : 4;
+Index: vserver-sources-2.0.1_2.6.15/init/version.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/init/version.c
++++ vserver-sources-2.0.1_2.6.15/init/version.c
+@@ -31,3 +31,8 @@ EXPORT_SYMBOL(system_utsname);
+ const char linux_banner[] =
+ 	"Linux version " UTS_RELEASE " (" LINUX_COMPILE_BY "@"
+ 	LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") " UTS_VERSION "\n";
++
++const char vx_linux_banner[] =
++	"Linux version %s (" LINUX_COMPILE_BY "@"
++	LINUX_COMPILE_HOST ") (" LINUX_COMPILER ") %s\n";
++
+Index: vserver-sources-2.0.1_2.6.15/ipc/mqueue.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/ipc/mqueue.c
++++ vserver-sources-2.0.1_2.6.15/ipc/mqueue.c
+@@ -24,6 +24,8 @@
+ #include <linux/netlink.h>
+ #include <linux/syscalls.h>
+ #include <linux/signal.h>
++#include <linux/vs_context.h>
++#include <linux/vs_limit.h>
+ #include <net/sock.h>
+ #include "util.h"
+ 
+@@ -147,17 +149,20 @@ static struct inode *mqueue_get_inode(st
+ 			spin_lock(&mq_lock);
+ 			if (u->mq_bytes + mq_bytes < u->mq_bytes ||
+ 		 	    u->mq_bytes + mq_bytes >
+-			    p->signal->rlim[RLIMIT_MSGQUEUE].rlim_cur) {
++			    p->signal->rlim[RLIMIT_MSGQUEUE].rlim_cur ||
++			    !vx_ipcmsg_avail(p->vx_info, mq_bytes)) {
+ 				spin_unlock(&mq_lock);
+ 				goto out_inode;
+ 			}
+ 			u->mq_bytes += mq_bytes;
++			vx_ipcmsg_add(p->vx_info, u, mq_bytes);
+ 			spin_unlock(&mq_lock);
+ 
+ 			info->messages = kmalloc(mq_msg_tblsz, GFP_KERNEL);
+ 			if (!info->messages) {
+ 				spin_lock(&mq_lock);
+ 				u->mq_bytes -= mq_bytes;
++				vx_ipcmsg_sub(p->vx_info, u, mq_bytes);
+ 				spin_unlock(&mq_lock);
+ 				goto out_inode;
+ 			}
+@@ -255,10 +260,14 @@ static void mqueue_delete_inode(struct i
+ 		   (info->attr.mq_maxmsg * info->attr.mq_msgsize));
+ 	user = info->user;
+ 	if (user) {
++		struct vx_info *vxi = locate_vx_info(user->xid);
++
+ 		spin_lock(&mq_lock);
+ 		user->mq_bytes -= mq_bytes;
++		vx_ipcmsg_sub(vxi, user, mq_bytes);
+ 		queues_count--;
+ 		spin_unlock(&mq_lock);
++		put_vx_info(vxi);
+ 		free_uid(user);
+ 	}
+ }
+Index: vserver-sources-2.0.1_2.6.15/ipc/msg.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/ipc/msg.c
++++ vserver-sources-2.0.1_2.6.15/ipc/msg.c
+@@ -99,6 +99,7 @@ static int newque (key_t key, int msgflg
+ 
+ 	msq->q_perm.mode = (msgflg & S_IRWXUGO);
+ 	msq->q_perm.key = key;
++	msq->q_perm.xid = vx_current_xid();
+ 
+ 	msq->q_perm.security = NULL;
+ 	retval = security_msg_queue_alloc(msq);
+@@ -814,6 +815,9 @@ static int sysvipc_msg_proc_show(struct 
+ {
+ 	struct msg_queue *msq = it;
+ 
++	if (!vx_check(msq->q_perm.xid, VX_IDENT))
++		return 0;
++
+ 	return seq_printf(s,
+ 			  "%10d %10d  %4o  %10lu %10lu %5u %5u %5u %5u %5u %5u %10lu %10lu %10lu\n",
+ 			  msq->q_perm.key,
+Index: vserver-sources-2.0.1_2.6.15/ipc/sem.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/ipc/sem.c
++++ vserver-sources-2.0.1_2.6.15/ipc/sem.c
+@@ -178,6 +178,7 @@ static int newary (key_t key, int nsems,
+ 
+ 	sma->sem_perm.mode = (semflg & S_IRWXUGO);
+ 	sma->sem_perm.key = key;
++	sma->sem_perm.xid = vx_current_xid();
+ 
+ 	sma->sem_perm.security = NULL;
+ 	retval = security_sem_alloc(sma);
+@@ -1336,6 +1337,9 @@ static int sysvipc_sem_proc_show(struct 
+ {
+ 	struct sem_array *sma = it;
+ 
++	if (!vx_check(sma->sem_perm.xid, VX_IDENT))
++		return 0;
++
+ 	return seq_printf(s,
+ 			  "%10d %10d  %4o %10lu %5u %5u %5u %5u %10lu %10lu\n",
+ 			  sma->sem_perm.key,
+Index: vserver-sources-2.0.1_2.6.15/ipc/shm.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/ipc/shm.c
++++ vserver-sources-2.0.1_2.6.15/ipc/shm.c
+@@ -29,6 +29,7 @@
+ #include <linux/audit.h>
+ #include <linux/ptrace.h>
+ #include <linux/seq_file.h>
++#include <linux/vs_limit.h>
+ 
+ #include <asm/uaccess.h>
+ 
+@@ -115,7 +116,12 @@ static void shm_open (struct vm_area_str
+  */
+ static void shm_destroy (struct shmid_kernel *shp)
+ {
+-	shm_tot -= (shp->shm_segsz + PAGE_SIZE - 1) >> PAGE_SHIFT;
++	struct vx_info *vxi = locate_vx_info(shp->shm_perm.xid);
++	int numpages = (shp->shm_segsz + PAGE_SIZE - 1) >> PAGE_SHIFT;
++
++	vx_ipcshm_sub(vxi, shp, numpages);
++	shm_tot -= numpages;
++
+ 	shm_rmid (shp->id);
+ 	shm_unlock(shp);
+ 	if (!is_file_hugepages(shp->shm_file))
+@@ -125,6 +131,7 @@ static void shm_destroy (struct shmid_ke
+ 						shp->mlock_user);
+ 	fput (shp->shm_file);
+ 	security_shm_free(shp);
++	put_vx_info(vxi);
+ 	ipc_rcu_putref(shp);
+ }
+ 
+@@ -191,12 +198,15 @@ static int newseg (key_t key, int shmflg
+ 
+ 	if (shm_tot + numpages >= shm_ctlall)
+ 		return -ENOSPC;
++	if (!vx_ipcshm_avail(current->vx_info, numpages))
++		return -ENOSPC;
+ 
+ 	shp = ipc_rcu_alloc(sizeof(*shp));
+ 	if (!shp)
+ 		return -ENOMEM;
+ 
+ 	shp->shm_perm.key = key;
++	shp->shm_perm.xid = vx_current_xid();
+ 	shp->shm_flags = (shmflg & S_IRWXUGO);
+ 	shp->mlock_user = NULL;
+ 
+@@ -247,6 +257,7 @@ static int newseg (key_t key, int shmflg
+ 		file->f_op = &shm_file_operations;
+ 
+ 	shm_tot += numpages;
++	vx_ipcshm_add(current->vx_info, key, numpages);
+ 	shm_unlock(shp);
+ 	return shp->id;
+ 
+@@ -888,6 +899,9 @@ static int sysvipc_shm_proc_show(struct 
+ #define SMALL_STRING "%10d %10d  %4o %10u %5u %5u  %5d %5u %5u %5u %5u %10lu %10lu %10lu\n"
+ #define BIG_STRING   "%10d %10d  %4o %21u %5u %5u  %5d %5u %5u %5u %5u %10lu %10lu %10lu\n"
+ 
++	if (!vx_check(shp->shm_perm.xid, VX_IDENT))
++		return 0;
++
+ 	if (sizeof(size_t) <= sizeof(int))
+ 		format = SMALL_STRING;
+ 	else
+Index: vserver-sources-2.0.1_2.6.15/ipc/util.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/ipc/util.c
++++ vserver-sources-2.0.1_2.6.15/ipc/util.c
+@@ -153,7 +153,9 @@ int ipc_findkey(struct ipc_ids* ids, key
+ 	 */
+ 	for (id = 0; id <= max_id; id++) {
+ 		p = ids->entries->p[id];
+-		if(p==NULL)
++		if (p==NULL)
++			continue;
++		if (!vx_check(p->xid, VX_IDENT))
+ 			continue;
+ 		if (key == p->key)
+ 			return id;
+@@ -467,6 +469,8 @@ int ipcperms (struct kern_ipc_perm *ipcp
+ {	/* flag will most probably be 0 or S_...UGO from <linux/stat.h> */
+ 	int requested_mode, granted_mode;
+ 
++	if (!vx_check(ipcp->xid, VX_ADMIN|VX_IDENT)) /* maybe just VX_IDENT? */
++		return -1;
+ 	requested_mode = (flag >> 6) | (flag >> 3) | flag;
+ 	granted_mode = ipcp->mode;
+ 	if (current->euid == ipcp->cuid || current->euid == ipcp->uid)
+Index: vserver-sources-2.0.1_2.6.15/kernel/Makefile
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/kernel/Makefile
++++ vserver-sources-2.0.1_2.6.15/kernel/Makefile
+@@ -9,6 +9,9 @@ obj-y     = sched.o fork.o exec_domain.o
+ 	    rcupdate.o intermodule.o extable.o params.o posix-timers.o \
+ 	    kthread.o wait.o kfifo.o sys_ni.o posix-cpu-timers.o
+ 
++subdir-y	+= vserver
++obj-y	  += vserver/vserver.o
++
+ obj-$(CONFIG_FUTEX) += futex.o
+ obj-$(CONFIG_GENERIC_ISA_DMA) += dma.o
+ obj-$(CONFIG_SMP) += cpu.o spinlock.o
+Index: vserver-sources-2.0.1_2.6.15/kernel/capability.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/kernel/capability.c
++++ vserver-sources-2.0.1_2.6.15/kernel/capability.c
+@@ -11,6 +11,7 @@
+ #include <linux/module.h>
+ #include <linux/security.h>
+ #include <linux/syscalls.h>
++#include <linux/vs_cvirt.h>
+ #include <asm/uaccess.h>
+ 
+ unsigned securebits = SECUREBITS_DEFAULT; /* systemwide security settings */
+Index: vserver-sources-2.0.1_2.6.15/kernel/cpuset.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/kernel/cpuset.c
++++ vserver-sources-2.0.1_2.6.15/kernel/cpuset.c
+@@ -49,6 +49,7 @@
+ #include <linux/time.h>
+ #include <linux/backing-dev.h>
+ #include <linux/sort.h>
++#include <linux/vs_cvirt.h>
+ 
+ #include <asm/uaccess.h>
+ #include <asm/atomic.h>
+Index: vserver-sources-2.0.1_2.6.15/kernel/exit.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/kernel/exit.c
++++ vserver-sources-2.0.1_2.6.15/kernel/exit.c
+@@ -29,6 +29,8 @@
+ #include <linux/syscalls.h>
+ #include <linux/signal.h>
+ #include <linux/cn_proc.h>
++#include <linux/vs_limit.h>
++#include <linux/vs_network.h>
+ 
+ #include <asm/uaccess.h>
+ #include <asm/unistd.h>
+@@ -45,6 +47,11 @@ static void exit_mm(struct task_struct *
+ static void __unhash_process(struct task_struct *p)
+ {
+ 	nr_threads--;
++	/* tasklist_lock is held */
++	if (p->vx_info) {
++		atomic_dec(&p->vx_info->cvirt.nr_threads);
++		vx_nproc_dec(p);
++	}
+ 	detach_pid(p, PIDTYPE_PID);
+ 	detach_pid(p, PIDTYPE_TGID);
+ 	if (thread_group_leader(p)) {
+@@ -106,6 +113,10 @@ repeat: 
+ 	spin_unlock(&p->proc_lock);
+ 	proc_pid_flush(proc_dentry);
+ 	release_thread(p);
++	if (p->vx_info)
++		release_vx_info(p->vx_info, p);
++	if (p->nx_info)
++		release_nx_info(p->nx_info, p);
+ 	put_task_struct(p);
+ 
+ 	p = leader;
+@@ -236,6 +247,7 @@ static inline void reparent_to_init(void
+ 	ptrace_unlink(current);
+ 	/* Reparent to init */
+ 	REMOVE_LINKS(current);
++	/* FIXME: handle vchild_reaper/initpid */
+ 	current->parent = child_reaper;
+ 	current->real_parent = child_reaper;
+ 	SET_LINKS(current);
+@@ -390,6 +402,7 @@ static inline void close_files(struct fi
+ 				struct file * file = xchg(&fdt->fd[i], NULL);
+ 				if (file)
+ 					filp_close(file, files);
++				vx_openfd_dec(i);
+ 			}
+ 			i++;
+ 			set >>= 1;
+@@ -610,6 +623,7 @@ static inline void forget_original_paren
+ 	struct task_struct *p, *reaper = father;
+ 	struct list_head *_p, *_n;
+ 
++	/* FIXME: handle vchild_reaper/initpid */
+ 	do {
+ 		reaper = next_thread(reaper);
+ 		if (reaper == father) {
+Index: vserver-sources-2.0.1_2.6.15/kernel/fork.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/kernel/fork.c
++++ vserver-sources-2.0.1_2.6.15/kernel/fork.c
+@@ -43,6 +43,9 @@
+ #include <linux/rmap.h>
+ #include <linux/acct.h>
+ #include <linux/cn_proc.h>
++#include <linux/vs_network.h>
++#include <linux/vs_limit.h>
++#include <linux/vs_memory.h>
+ 
+ #include <asm/pgtable.h>
+ #include <asm/pgalloc.h>
+@@ -104,6 +107,8 @@ static kmem_cache_t *mm_cachep;
+ void free_task(struct task_struct *tsk)
+ {
+ 	free_thread_info(tsk->thread_info);
++	clr_vx_info(&tsk->vx_info);
++	clr_nx_info(&tsk->nx_info);
+ 	free_task_struct(tsk);
+ }
+ EXPORT_SYMBOL(free_task);
+@@ -201,6 +206,8 @@ static inline int dup_mmap(struct mm_str
+ 	mm->free_area_cache = oldmm->mmap_base;
+ 	mm->cached_hole_size = ~0UL;
+ 	mm->map_count = 0;
++	__set_mm_counter(mm, file_rss, 0);
++	__set_mm_counter(mm, anon_rss, 0);
+ 	cpus_clear(mm->cpu_vm_mask);
+ 	mm->mm_rb = RB_ROOT;
+ 	rb_link = &mm->mm_rb.rb_node;
+@@ -212,7 +219,7 @@ static inline int dup_mmap(struct mm_str
+ 
+ 		if (mpnt->vm_flags & VM_DONTCOPY) {
+ 			long pages = vma_pages(mpnt);
+-			mm->total_vm -= pages;
++			vx_vmpages_sub(mm, pages);
+ 			vm_stat_account(mm, mpnt->vm_flags, mpnt->vm_file,
+ 								-pages);
+ 			continue;
+@@ -319,8 +326,6 @@ static struct mm_struct * mm_init(struct
+ 	INIT_LIST_HEAD(&mm->mmlist);
+ 	mm->core_waiters = 0;
+ 	mm->nr_ptes = 0;
+-	set_mm_counter(mm, file_rss, 0);
+-	set_mm_counter(mm, anon_rss, 0);
+ 	spin_lock_init(&mm->page_table_lock);
+ 	rwlock_init(&mm->ioctx_list_lock);
+ 	mm->ioctx_list = NULL;
+@@ -329,6 +334,7 @@ static struct mm_struct * mm_init(struct
+ 
+ 	if (likely(!mm_alloc_pgd(mm))) {
+ 		mm->def_flags = 0;
++		set_vx_info(&mm->mm_vx_info, current->vx_info);
+ 		return mm;
+ 	}
+ 	free_mm(mm);
+@@ -360,6 +366,7 @@ void fastcall __mmdrop(struct mm_struct 
+ 	BUG_ON(mm == &init_mm);
+ 	mm_free_pgd(mm);
+ 	destroy_context(mm);
++	clr_vx_info(&mm->mm_vx_info);
+ 	free_mm(mm);
+ }
+ 
+@@ -513,6 +520,7 @@ static int copy_mm(unsigned long clone_f
+ 
+ 	/* Copy the current MM stuff.. */
+ 	memcpy(mm, oldmm, sizeof(*mm));
++	mm->mm_vx_info = NULL;
+ 	if (!mm_init(mm))
+ 		goto fail_nomem;
+ 
+@@ -541,6 +549,7 @@ fail_nocontext:
+ 	 * If init_new_context() failed, we cannot use mmput() to free the mm
+ 	 * because it calls destroy_context()
+ 	 */
++	clr_vx_info(&mm->mm_vx_info);
+ 	mm_free_pgd(mm);
+ 	free_mm(mm);
+ 	return retval;
+@@ -709,6 +718,8 @@ static int copy_files(unsigned long clon
+ 		struct file *f = *old_fds++;
+ 		if (f) {
+ 			get_file(f);
++			/* FIXME: sum it first for check and performance */
++			vx_openfd_inc(open_files - i);
+ 		} else {
+ 			/*
+ 			 * The fd may be claimed in the fd bitmap but not yet
+@@ -904,6 +915,8 @@ static task_t *copy_process(unsigned lon
+ {
+ 	int retval;
+ 	struct task_struct *p = NULL;
++	struct vx_info *vxi;
++	struct nx_info *nxi;
+ 
+ 	if ((clone_flags & (CLONE_NEWNS|CLONE_FS)) == (CLONE_NEWNS|CLONE_FS))
+ 		return ERR_PTR(-EINVAL);
+@@ -932,12 +945,30 @@ static task_t *copy_process(unsigned lon
+ 	if (!p)
+ 		goto fork_out;
+ 
++	init_vx_info(&p->vx_info, current->vx_info);
++	init_nx_info(&p->nx_info, current->nx_info);
++
++	/* check vserver memory */
++	if (p->mm && !(clone_flags & CLONE_VM)) {
++		if (vx_vmpages_avail(p->mm, p->mm->total_vm))
++			vx_pages_add(p->mm->mm_vx_info, RLIMIT_AS, p->mm->total_vm);
++		else
++			goto bad_fork_free;
++	}
++	if (p->mm && vx_flags(VXF_FORK_RSS, 0)) {
++		if (!vx_rsspages_avail(p->mm, get_mm_counter(p->mm, file_rss)))
++			goto bad_fork_cleanup_vm;
++	}
++
+ 	retval = -EAGAIN;
++	if (!vx_nproc_avail(1))
++		goto bad_fork_cleanup_vm;
++
+ 	if (atomic_read(&p->user->processes) >=
+ 			p->signal->rlim[RLIMIT_NPROC].rlim_cur) {
+ 		if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RESOURCE) &&
+ 				p->user != &root_user)
+-			goto bad_fork_free;
++			goto bad_fork_cleanup_vm;
+ 	}
+ 
+ 	atomic_inc(&p->user->__count);
+@@ -1173,6 +1204,18 @@ static task_t *copy_process(unsigned lon
+ 
+ 	nr_threads++;
+ 	total_forks++;
++
++	/* p is copy of current */
++	vxi = p->vx_info;
++	if (vxi) {
++		claim_vx_info(vxi, p);
++		atomic_inc(&vxi->cvirt.nr_threads);
++		atomic_inc(&vxi->cvirt.total_forks);
++		vx_nproc_inc(p);
++	}
++	nxi = p->nx_info;
++	if (nxi)
++		claim_nx_info(nxi, p);
+ 	write_unlock_irq(&tasklist_lock);
+ 	proc_fork_connector(p);
+ 	cpuset_fork(p);
+@@ -1217,6 +1260,9 @@ bad_fork_cleanup_count:
+ 	put_group_info(p->group_info);
+ 	atomic_dec(&p->user->processes);
+ 	free_uid(p->user);
++bad_fork_cleanup_vm:
++	if (p->mm && !(clone_flags & CLONE_VM))
++		vx_pages_sub(p->mm->mm_vx_info, RLIMIT_AS, p->mm->total_vm);
+ bad_fork_free:
+ 	free_task(p);
+ 	goto fork_out;
+Index: vserver-sources-2.0.1_2.6.15/kernel/kthread.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/kernel/kthread.c
++++ vserver-sources-2.0.1_2.6.15/kernel/kthread.c
+@@ -114,7 +114,7 @@ static void keventd_create_kthread(void 
+ 		create->result = ERR_PTR(pid);
+ 	} else {
+ 		wait_for_completion(&create->started);
+-		create->result = find_task_by_pid(pid);
++		create->result = find_task_by_real_pid(pid);
+ 	}
+ 	complete(&create->done);
+ }
+Index: vserver-sources-2.0.1_2.6.15/kernel/posix-cpu-timers.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/kernel/posix-cpu-timers.c
++++ vserver-sources-2.0.1_2.6.15/kernel/posix-cpu-timers.c
+@@ -6,6 +6,7 @@
+ #include <linux/posix-timers.h>
+ #include <asm/uaccess.h>
+ #include <linux/errno.h>
++#include <linux/vs_cvirt.h>
+ 
+ static int check_clock(clockid_t which_clock)
+ {
+Index: vserver-sources-2.0.1_2.6.15/kernel/posix-timers.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/kernel/posix-timers.c
++++ vserver-sources-2.0.1_2.6.15/kernel/posix-timers.c
+@@ -47,6 +47,7 @@
+ #include <linux/wait.h>
+ #include <linux/workqueue.h>
+ #include <linux/module.h>
++#include <linux/vs_cvirt.h>
+ 
+ #ifndef div_long_long_rem
+ #include <asm/div64.h>
+@@ -430,9 +431,10 @@ int posix_timer_event(struct k_itimer *t
+ 
+ 	if (timr->it_sigev_notify & SIGEV_THREAD_ID) {
+ 		struct task_struct *leader;
+-		int ret = send_sigqueue(timr->it_sigev_signo, timr->sigq,
+-					timr->it_process);
++		int ret;
+ 
++		ret = send_sigqueue(timr->it_sigev_signo, timr->sigq,
++				    timr->it_process);
+ 		if (likely(ret >= 0))
+ 			return ret;
+ 
+@@ -518,7 +520,7 @@ static inline struct task_struct * good_
+ 	struct task_struct *rtn = current->group_leader;
+ 
+ 	if ((event->sigev_notify & SIGEV_THREAD_ID ) &&
+-		(!(rtn = find_task_by_pid(event->sigev_notify_thread_id)) ||
++		(!(rtn = find_task_by_real_pid(event->sigev_notify_thread_id)) ||
+ 		 rtn->tgid != current->tgid ||
+ 		 (event->sigev_notify & ~SIGEV_THREAD_ID) != SIGEV_SIGNAL))
+ 		return NULL;
+Index: vserver-sources-2.0.1_2.6.15/kernel/printk.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/kernel/printk.c
++++ vserver-sources-2.0.1_2.6.15/kernel/printk.c
+@@ -31,6 +31,7 @@
+ #include <linux/security.h>
+ #include <linux/bootmem.h>
+ #include <linux/syscalls.h>
++#include <linux/vserver/cvirt.h>
+ 
+ #include <asm/uaccess.h>
+ 
+@@ -221,18 +222,13 @@ int do_syslog(int type, char __user *buf
+ 	unsigned long i, j, limit, count;
+ 	int do_clear = 0;
+ 	char c;
+-	int error = 0;
++	int error;
+ 
+ 	error = security_syslog(type);
+ 	if (error)
+ 		return error;
+ 
+-	switch (type) {
+-	case 0:		/* Close log */
+-		break;
+-	case 1:		/* Open log */
+-		break;
+-	case 2:		/* Read from log */
++	if ((type >= 2) && (type <= 4)) {
+ 		error = -EINVAL;
+ 		if (!buf || len < 0)
+ 			goto out;
+@@ -243,6 +239,16 @@ int do_syslog(int type, char __user *buf
+ 			error = -EFAULT;
+ 			goto out;
+ 		}
++	}
++	if (!vx_check(0, VX_ADMIN|VX_WATCH))
++		return vx_do_syslog(type, buf, len);
++
++	switch (type) {
++	case 0:		/* Close log */
++		break;
++	case 1:		/* Open log */
++		break;
++	case 2:		/* Read from log */
+ 		error = wait_event_interruptible(log_wait,
+ 							(log_start - log_end));
+ 		if (error)
+@@ -267,16 +273,6 @@ int do_syslog(int type, char __user *buf
+ 		do_clear = 1;
+ 		/* FALL THRU */
+ 	case 3:		/* Read last kernel messages */
+-		error = -EINVAL;
+-		if (!buf || len < 0)
+-			goto out;
+-		error = 0;
+-		if (!len)
+-			goto out;
+-		if (!access_ok(VERIFY_WRITE, buf, len)) {
+-			error = -EFAULT;
+-			goto out;
+-		}
+ 		count = len;
+ 		if (count > log_buf_len)
+ 			count = log_buf_len;
+Index: vserver-sources-2.0.1_2.6.15/kernel/ptrace.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/kernel/ptrace.c
++++ vserver-sources-2.0.1_2.6.15/kernel/ptrace.c
+@@ -474,6 +474,9 @@ asmlinkage long sys_ptrace(long request,
+ 	if (!child)
+ 		goto out;
+ 
++	if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT))
++		goto out_put_task_struct;
++
+ 	if (request == PTRACE_ATTACH) {
+ 		ret = ptrace_attach(child);
+ 		goto out_put_task_struct;
+Index: vserver-sources-2.0.1_2.6.15/kernel/sched.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/kernel/sched.c
++++ vserver-sources-2.0.1_2.6.15/kernel/sched.c
+@@ -50,6 +50,9 @@
+ #include <asm/tlb.h>
+ 
+ #include <asm/unistd.h>
++#include <linux/vs_context.h>
++#include <linux/vs_cvirt.h>
++#include <linux/vs_sched.h>
+ 
+ /*
+  * Convert user-nice values [ -20 ... 0 ... 19 ]
+@@ -237,6 +240,10 @@ struct runqueue {
+ 	task_t *migration_thread;
+ 	struct list_head migration_queue;
+ #endif
++#ifdef CONFIG_VSERVER_HARDCPU
++	struct list_head hold_queue;
++	int idle_tokens;
++#endif
+ 
+ #ifdef CONFIG_SCHEDSTATS
+ 	/* latency stats */
+@@ -597,6 +604,7 @@ static inline void sched_info_switch(tas
+  */
+ static void dequeue_task(struct task_struct *p, prio_array_t *array)
+ {
++	BUG_ON(p->state & TASK_ONHOLD);
+ 	array->nr_active--;
+ 	list_del(&p->run_list);
+ 	if (list_empty(array->queue + p->prio))
+@@ -605,6 +613,7 @@ static void dequeue_task(struct task_str
+ 
+ static void enqueue_task(struct task_struct *p, prio_array_t *array)
+ {
++	BUG_ON(p->state & TASK_ONHOLD);
+ 	sched_info_queued(p);
+ 	list_add_tail(&p->run_list, array->queue + p->prio);
+ 	__set_bit(p->prio, array->bitmap);
+@@ -618,11 +627,13 @@ static void enqueue_task(struct task_str
+  */
+ static void requeue_task(struct task_struct *p, prio_array_t *array)
+ {
++	BUG_ON(p->state & TASK_ONHOLD);
+ 	list_move_tail(&p->run_list, array->queue + p->prio);
+ }
+ 
+ static inline void enqueue_task_head(struct task_struct *p, prio_array_t *array)
+ {
++	BUG_ON(p->state & TASK_ONHOLD);
+ 	list_add(&p->run_list, array->queue + p->prio);
+ 	__set_bit(p->prio, array->bitmap);
+ 	array->nr_active++;
+@@ -646,6 +657,7 @@ static inline void enqueue_task_head(str
+ static int effective_prio(task_t *p)
+ {
+ 	int bonus, prio;
++	struct vx_info *vxi;
+ 
+ 	if (rt_task(p))
+ 		return p->prio;
+@@ -653,6 +665,11 @@ static int effective_prio(task_t *p)
+ 	bonus = CURRENT_BONUS(p) - MAX_BONUS / 2;
+ 
+ 	prio = p->static_prio - bonus;
++
++	if ((vxi = p->vx_info) &&
++		vx_info_flags(vxi, VXF_SCHED_PRIO, 0))
++		prio += vx_effective_vavavoom(vxi, MAX_USER_PRIO);
++
+ 	if (prio < MAX_RT_PRIO)
+ 		prio = MAX_RT_PRIO;
+ 	if (prio > MAX_PRIO-1)
+@@ -842,19 +859,77 @@ static void activate_task(task_t *p, run
+ 	}
+ 	p->timestamp = now;
+ 
++	vx_activate_task(p);
+ 	__activate_task(p, rq);
+ }
+ 
+ /*
+  * deactivate_task - remove a task from the runqueue.
+  */
+-static void deactivate_task(struct task_struct *p, runqueue_t *rq)
++static void __deactivate_task(struct task_struct *p, runqueue_t *rq)
+ {
+ 	dec_nr_running(p, rq);
+ 	dequeue_task(p, p->array);
+ 	p->array = NULL;
+ }
+ 
++static inline
++void deactivate_task(struct task_struct *p, runqueue_t *rq)
++{
++	vx_deactivate_task(p);
++	__deactivate_task(p, rq);
++}
++
++
++#ifdef	CONFIG_VSERVER_HARDCPU
++/*
++ * vx_hold_task - put a task on the hold queue
++ */
++static inline
++void vx_hold_task(struct vx_info *vxi,
++	struct task_struct *p, runqueue_t *rq)
++{
++	__deactivate_task(p, rq);
++	p->state |= TASK_ONHOLD;
++	/* a new one on hold */
++	vx_onhold_inc(vxi);
++	list_add_tail(&p->run_list, &rq->hold_queue);
++}
++
++/*
++ * vx_unhold_task - put a task back to the runqueue
++ */
++static inline
++void vx_unhold_task(struct vx_info *vxi,
++	struct task_struct *p, runqueue_t *rq)
++{
++	list_del(&p->run_list);
++	/* one less waiting */
++	vx_onhold_dec(vxi);
++	p->state &= ~TASK_ONHOLD;
++	enqueue_task(p, rq->expired);
++	rq->nr_running++;
++
++	if (p->static_prio < rq->best_expired_prio)
++		rq->best_expired_prio = p->static_prio;
++}
++#else
++static inline
++void vx_hold_task(struct vx_info *vxi,
++	struct task_struct *p, runqueue_t *rq)
++{
++	return;
++}
++
++static inline
++void vx_unhold_task(struct vx_info *vxi,
++	struct task_struct *p, runqueue_t *rq)
++{
++	return;
++}
++#endif /* CONFIG_VSERVER_HARDCPU */
++
++
+ /*
+  * resched_task - mark a task 'to be rescheduled now'.
+  *
+@@ -1252,6 +1327,12 @@ static int try_to_wake_up(task_t *p, uns
+ 
+ 	rq = task_rq_lock(p, &flags);
+ 	old_state = p->state;
++
++	/* we need to unhold suspended tasks */
++	if (old_state & TASK_ONHOLD) {
++		vx_unhold_task(p->vx_info, p, rq);
++		old_state = p->state;
++	}
+ 	if (!(old_state & state))
+ 		goto out;
+ 
+@@ -1368,10 +1449,16 @@ out_activate:
+ 	 * sleep is handled in a priority-neutral manner, no priority
+ 	 * boost and no penalty.)
+ 	 */
+-	if (old_state & TASK_NONINTERACTIVE)
++	if (old_state & TASK_NONINTERACTIVE) {
++		vx_activate_task(p);
+ 		__activate_task(p, rq);
+-	else
++	} else
+ 		activate_task(p, rq, cpu == this_cpu);
++
++	/* this is to get the accounting behind the load update */
++	if (old_state & TASK_UNINTERRUPTIBLE)
++		vx_uninterruptible_dec(p);
++
+ 	/*
+ 	 * Sync wakeups (i.e. those types of wakeups where the waker
+ 	 * has indicated that it will leave the CPU in short order)
+@@ -1495,6 +1582,7 @@ void fastcall wake_up_new_task(task_t *p
+ 
+ 	p->prio = effective_prio(p);
+ 
++	vx_activate_task(p);
+ 	if (likely(cpu == this_cpu)) {
+ 		if (!(clone_flags & CLONE_VM)) {
+ 			/*
+@@ -1506,6 +1594,7 @@ void fastcall wake_up_new_task(task_t *p
+ 				__activate_task(p, rq);
+ 			else {
+ 				p->prio = current->prio;
++				BUG_ON(p->state & TASK_ONHOLD);
+ 				list_add_tail(&p->run_list, &current->run_list);
+ 				p->array = current->array;
+ 				p->array->nr_active++;
+@@ -2569,13 +2658,16 @@ unsigned long long current_sched_time(co
+ void account_user_time(struct task_struct *p, cputime_t cputime)
+ {
+ 	struct cpu_usage_stat *cpustat = &kstat_this_cpu.cpustat;
++	struct vx_info *vxi = p->vx_info;  /* p is _always_ current */
+ 	cputime64_t tmp;
++	int nice = (TASK_NICE(p) > 0);
+ 
+ 	p->utime = cputime_add(p->utime, cputime);
++	vx_account_user(vxi, cputime, nice);
+ 
+ 	/* Add user time to cpustat. */
+ 	tmp = cputime_to_cputime64(cputime);
+-	if (TASK_NICE(p) > 0)
++	if (nice)
+ 		cpustat->nice = cputime64_add(cpustat->nice, tmp);
+ 	else
+ 		cpustat->user = cputime64_add(cpustat->user, tmp);
+@@ -2591,10 +2683,12 @@ void account_system_time(struct task_str
+ 			 cputime_t cputime)
+ {
+ 	struct cpu_usage_stat *cpustat = &kstat_this_cpu.cpustat;
++	struct vx_info *vxi = p->vx_info;  /* p is _always_ current */
+ 	runqueue_t *rq = this_rq();
+ 	cputime64_t tmp;
+ 
+ 	p->stime = cputime_add(p->stime, cputime);
++	vx_account_system(vxi, cputime, (p == rq->idle));
+ 
+ 	/* Add system time to cpustat. */
+ 	tmp = cputime_to_cputime64(cputime);
+@@ -2654,6 +2748,10 @@ void scheduler_tick(void)
+ 	if (p == rq->idle) {
+ 		if (wake_priority_sleeper(rq))
+ 			goto out;
++#ifdef CONFIG_VSERVER_HARDCPU_IDLE
++		if (!--rq->idle_tokens && !list_empty(&rq->hold_queue))
++			set_need_resched();
++#endif
+ 		rebalance_tick(cpu, rq, SCHED_IDLE);
+ 		return;
+ 	}
+@@ -2686,7 +2784,7 @@ void scheduler_tick(void)
+ 		}
+ 		goto out_unlock;
+ 	}
+-	if (!--p->time_slice) {
++	if (vx_need_resched(p)) {
+ 		dequeue_task(p, rq->active);
+ 		set_tsk_need_resched(p);
+ 		p->prio = effective_prio(p);
+@@ -2951,6 +3049,10 @@ asmlinkage void __sched schedule(void)
+ 	unsigned long long now;
+ 	unsigned long run_time;
+ 	int cpu, idx, new_prio;
++	struct vx_info *vxi;
++#ifdef	CONFIG_VSERVER_HARDCPU
++	int maxidle = -HZ;
++#endif
+ 
+ 	/*
+ 	 * Test if we are atomic.  Since do_exit() needs to call into
+@@ -3010,12 +3112,41 @@ need_resched_nonpreemptible:
+ 				unlikely(signal_pending(prev))))
+ 			prev->state = TASK_RUNNING;
+ 		else {
+-			if (prev->state == TASK_UNINTERRUPTIBLE)
++			if (prev->state == TASK_UNINTERRUPTIBLE) {
+ 				rq->nr_uninterruptible++;
++				vx_uninterruptible_inc(prev);
++			}
+ 			deactivate_task(prev, rq);
+ 		}
+ 	}
+ 
++#ifdef CONFIG_VSERVER_HARDCPU
++	if (!list_empty(&rq->hold_queue)) {
++		struct list_head *l, *n;
++		int ret;
++
++		vxi = NULL;
++		list_for_each_safe(l, n, &rq->hold_queue) {
++			next = list_entry(l, task_t, run_list);
++			if (vxi == next->vx_info)
++				continue;
++
++			vxi = next->vx_info;
++			ret = vx_tokens_recalc(vxi);
++
++			if (ret > 0) {
++				vx_unhold_task(vxi, next, rq);
++				break;
++			}
++			if ((ret < 0) && (maxidle < ret))
++				maxidle = ret;
++		}
++	}
++	rq->idle_tokens = -maxidle;
++
++pick_next:
++#endif
++
+ 	cpu = smp_processor_id();
+ 	if (unlikely(!rq->nr_running)) {
+ go_idle:
+@@ -3063,6 +3194,22 @@ go_idle:
+ 	queue = array->queue + idx;
+ 	next = list_entry(queue->next, task_t, run_list);
+ 
++	vxi = next->vx_info;
++#ifdef	CONFIG_VSERVER_HARDCPU
++	if (vx_info_flags(vxi, VXF_SCHED_PAUSE|VXF_SCHED_HARD, 0)) {
++		int ret = vx_tokens_recalc(vxi);
++
++		if (unlikely(ret <= 0)) {
++			if (ret && (rq->idle_tokens > -ret))
++				rq->idle_tokens = -ret;
++			vx_hold_task(vxi, next, rq);
++			goto pick_next;
++		}
++	} else	/* well, looks ugly but not as ugly as the ifdef-ed version */
++#endif
++	if (vx_info_flags(vxi, VXF_SCHED_PRIO, 0))
++		vx_tokens_recalc(vxi);
++
+ 	if (!rt_task(next) && next->activated > 0) {
+ 		unsigned long long delta = now - next->timestamp;
+ 		if (unlikely((long long)(now - next->timestamp) < 0))
+@@ -3621,7 +3768,7 @@ asmlinkage long sys_nice(int increment)
+ 		nice = 19;
+ 
+ 	if (increment < 0 && !can_nice(current, nice))
+-		return -EPERM;
++		return vx_flags(VXF_IGNEG_NICE, 0) ? 0 : -EPERM;
+ 
+ 	retval = security_task_setnice(current, nice);
+ 	if (retval)
+@@ -3769,6 +3916,7 @@ recheck:
+ 	oldprio = p->prio;
+ 	__setscheduler(p, policy, param->sched_priority);
+ 	if (array) {
++		vx_activate_task(p);
+ 		__activate_task(p, rq);
+ 		/*
+ 		 * Reschedule if we are currently running on this runqueue and
+@@ -5622,6 +5770,9 @@ void __init sched_init(void)
+ 		INIT_LIST_HEAD(&rq->migration_queue);
+ #endif
+ 		atomic_set(&rq->nr_iowait, 0);
++#ifdef CONFIG_VSERVER_HARDCPU
++		INIT_LIST_HEAD(&rq->hold_queue);
++#endif
+ 
+ 		for (j = 0; j < 2; j++) {
+ 			array = rq->arrays + j;
+@@ -5691,6 +5842,7 @@ void normalize_rt_tasks(void)
+ 			deactivate_task(p, task_rq(p));
+ 		__setscheduler(p, SCHED_NORMAL, 0);
+ 		if (array) {
++			vx_activate_task(p);
+ 			__activate_task(p, task_rq(p));
+ 			resched_task(rq->curr);
+ 		}
+Index: vserver-sources-2.0.1_2.6.15/kernel/signal.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/kernel/signal.c
++++ vserver-sources-2.0.1_2.6.15/kernel/signal.c
+@@ -638,18 +638,27 @@ static int rm_from_queue(unsigned long m
+ static int check_kill_permission(int sig, struct siginfo *info,
+ 				 struct task_struct *t)
+ {
++	int user;
+ 	int error = -EINVAL;
++
+ 	if (!valid_signal(sig))
+ 		return error;
++
++	user = ((info == SEND_SIG_NOINFO) ||
++		(!is_si_special(info) && SI_FROMUSER(info)));
++
+ 	error = -EPERM;
+-	if ((info == SEND_SIG_NOINFO || (!is_si_special(info) && SI_FROMUSER(info)))
+-	    && ((sig != SIGCONT) ||
++	if (user && ((sig != SIGCONT) ||
+ 		(current->signal->session != t->signal->session))
+ 	    && (current->euid ^ t->suid) && (current->euid ^ t->uid)
+ 	    && (current->uid ^ t->suid) && (current->uid ^ t->uid)
+ 	    && !capable(CAP_KILL))
+ 		return error;
+ 
++	error = -ESRCH;
++	if (user && !vx_check(vx_task_xid(t), VX_ADMIN|VX_IDENT))
++		return error;
++
+ 	error = security_task_kill(t, info, sig);
+ 	if (!error)
+ 		audit_signal_info(sig, t); /* Let audit system see the signal */
+@@ -1896,6 +1905,11 @@ relock:
+ 		if (current->pid == 1)
+ 			continue;
+ 
++		/* virtual init is protected against user signals */
++		if ((info->si_code == SI_USER) &&
++			vx_current_initpid(current->pid))
++			continue;
++
+ 		if (sig_kernel_stop(signr)) {
+ 			/*
+ 			 * The default action is to stop all threads in
+Index: vserver-sources-2.0.1_2.6.15/kernel/sys.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/kernel/sys.c
++++ vserver-sources-2.0.1_2.6.15/kernel/sys.c
+@@ -11,6 +11,7 @@
+ #include <linux/mman.h>
+ #include <linux/smp_lock.h>
+ #include <linux/notifier.h>
++#include <linux/kmod.h>
+ #include <linux/reboot.h>
+ #include <linux/prctl.h>
+ #include <linux/init.h>
+@@ -29,6 +30,7 @@
+ #include <linux/tty.h>
+ #include <linux/signal.h>
+ #include <linux/cn_proc.h>
++#include <linux/vs_cvirt.h>
+ 
+ #include <linux/compat.h>
+ #include <linux/syscalls.h>
+@@ -233,7 +235,10 @@ static int set_one_prio(struct task_stru
+ 		goto out;
+ 	}
+ 	if (niceval < task_nice(p) && !can_nice(p, niceval)) {
+-		error = -EACCES;
++		if (vx_flags(VXF_IGNEG_NICE, 0))
++			error = 0;
++		else
++			error = -EACCES;
+ 		goto out;
+ 	}
+ 	no_nice = security_task_setnice(p, niceval);
+@@ -285,7 +290,8 @@ asmlinkage long sys_setpriority(int whic
+ 			if (!who)
+ 				who = current->uid;
+ 			else
+-				if ((who != current->uid) && !(user = find_user(who)))
++				if ((who != current->uid) &&
++					!(user = find_user(vx_current_xid(), who)))
+ 					goto out_unlock;	/* No processes for this user */
+ 
+ 			do_each_thread(g, p)
+@@ -343,7 +349,8 @@ asmlinkage long sys_getpriority(int whic
+ 			if (!who)
+ 				who = current->uid;
+ 			else
+-				if ((who != current->uid) && !(user = find_user(who)))
++				if ((who != current->uid) &&
++					!(user = find_user(vx_current_xid(), who)))
+ 					goto out_unlock;	/* No processes for this user */
+ 
+ 			do_each_thread(g, p)
+@@ -465,6 +472,8 @@ void kernel_power_off(void)
+ }
+ EXPORT_SYMBOL_GPL(kernel_power_off);
+ 
++long vs_reboot(unsigned int, void *);
++
+ /*
+  * Reboot system call: for obvious reasons only root may call it,
+  * and even root needs to set up some magic numbers in the registers
+@@ -489,6 +498,9 @@ asmlinkage long sys_reboot(int magic1, i
+ 	                magic2 != LINUX_REBOOT_MAGIC2C))
+ 		return -EINVAL;
+ 
++	if (!vx_check(0, VX_ADMIN|VX_WATCH))
++		return vs_reboot(cmd, arg);
++
+ 	lock_kernel();
+ 	switch (cmd) {
+ 	case LINUX_REBOOT_CMD_RESTART:
+@@ -676,7 +688,7 @@ static int set_user(uid_t new_ruid, int 
+ {
+ 	struct user_struct *new_user;
+ 
+-	new_user = alloc_uid(new_ruid);
++	new_user = alloc_uid(vx_current_xid(), new_ruid);
+ 	if (!new_user)
+ 		return -EAGAIN;
+ 
+@@ -1085,14 +1097,17 @@ asmlinkage long sys_setpgid(pid_t pid, p
+ {
+ 	struct task_struct *p;
+ 	int err = -EINVAL;
++	pid_t rpgid;
+ 
+ 	if (!pid)
+-		pid = current->pid;
++		pid = vx_map_pid(current->pid);
+ 	if (!pgid)
+ 		pgid = pid;
+ 	if (pgid < 0)
+ 		return -EINVAL;
+ 
++	rpgid = vx_rmap_pid(pgid);
++
+ 	/* From this point forward we keep holding onto the tasklist lock
+ 	 * so that our parent does not change from under us. -DaveM
+ 	 */
+@@ -1127,22 +1142,22 @@ asmlinkage long sys_setpgid(pid_t pid, p
+ 	if (pgid != pid) {
+ 		struct task_struct *p;
+ 
+-		do_each_task_pid(pgid, PIDTYPE_PGID, p) {
++		do_each_task_pid(rpgid, PIDTYPE_PGID, p) {
+ 			if (p->signal->session == current->signal->session)
+ 				goto ok_pgid;
+-		} while_each_task_pid(pgid, PIDTYPE_PGID, p);
++		} while_each_task_pid(rpgid, PIDTYPE_PGID, p);
+ 		goto out;
+ 	}
+ 
+ ok_pgid:
+-	err = security_task_setpgid(p, pgid);
++	err = security_task_setpgid(p, rpgid);
+ 	if (err)
+ 		goto out;
+ 
+-	if (process_group(p) != pgid) {
++	if (process_group(p) != rpgid) {
+ 		detach_pid(p, PIDTYPE_PGID);
+-		p->signal->pgrp = pgid;
+-		attach_pid(p, PIDTYPE_PGID, pgid);
++		p->signal->pgrp = rpgid;
++		attach_pid(p, PIDTYPE_PGID, rpgid);
+ 	}
+ 
+ 	err = 0;
+@@ -1155,7 +1170,7 @@ out:
+ asmlinkage long sys_getpgid(pid_t pid)
+ {
+ 	if (!pid) {
+-		return process_group(current);
++		return vx_rmap_pid(process_group(current));
+ 	} else {
+ 		int retval;
+ 		struct task_struct *p;
+@@ -1167,7 +1182,7 @@ asmlinkage long sys_getpgid(pid_t pid)
+ 		if (p) {
+ 			retval = security_task_getpgid(p);
+ 			if (!retval)
+-				retval = process_group(p);
++				retval = vx_rmap_pid(process_group(p));
+ 		}
+ 		read_unlock(&tasklist_lock);
+ 		return retval;
+@@ -1505,7 +1520,7 @@ asmlinkage long sys_newuname(struct new_
+ 	int errno = 0;
+ 
+ 	down_read(&uts_sem);
+-	if (copy_to_user(name,&system_utsname,sizeof *name))
++	if (copy_to_user(name, vx_new_utsname(), sizeof *name))
+ 		errno = -EFAULT;
+ 	up_read(&uts_sem);
+ 	return errno;
+@@ -1516,15 +1531,17 @@ asmlinkage long sys_sethostname(char __u
+ 	int errno;
+ 	char tmp[__NEW_UTS_LEN];
+ 
+-	if (!capable(CAP_SYS_ADMIN))
++	if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SET_UTSNAME))
+ 		return -EPERM;
+ 	if (len < 0 || len > __NEW_UTS_LEN)
+ 		return -EINVAL;
+ 	down_write(&uts_sem);
+ 	errno = -EFAULT;
+ 	if (!copy_from_user(tmp, name, len)) {
+-		memcpy(system_utsname.nodename, tmp, len);
+-		system_utsname.nodename[len] = 0;
++		char *ptr = vx_new_uts(nodename);
++
++		memcpy(ptr, tmp, len);
++		ptr[len] = 0;
+ 		errno = 0;
+ 	}
+ 	up_write(&uts_sem);
+@@ -1536,15 +1553,17 @@ asmlinkage long sys_sethostname(char __u
+ asmlinkage long sys_gethostname(char __user *name, int len)
+ {
+ 	int i, errno;
++	char *ptr;
+ 
+ 	if (len < 0)
+ 		return -EINVAL;
+ 	down_read(&uts_sem);
+-	i = 1 + strlen(system_utsname.nodename);
++	ptr = vx_new_uts(nodename);
++	i = 1 + strlen(ptr);
+ 	if (i > len)
+ 		i = len;
+ 	errno = 0;
+-	if (copy_to_user(name, system_utsname.nodename, i))
++	if (copy_to_user(name, ptr, i))
+ 		errno = -EFAULT;
+ 	up_read(&uts_sem);
+ 	return errno;
+@@ -1561,7 +1580,7 @@ asmlinkage long sys_setdomainname(char _
+ 	int errno;
+ 	char tmp[__NEW_UTS_LEN];
+ 
+-	if (!capable(CAP_SYS_ADMIN))
++	if (!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SET_UTSNAME))
+ 		return -EPERM;
+ 	if (len < 0 || len > __NEW_UTS_LEN)
+ 		return -EINVAL;
+@@ -1569,8 +1588,10 @@ asmlinkage long sys_setdomainname(char _
+ 	down_write(&uts_sem);
+ 	errno = -EFAULT;
+ 	if (!copy_from_user(tmp, name, len)) {
+-		memcpy(system_utsname.domainname, tmp, len);
+-		system_utsname.domainname[len] = 0;
++		char *ptr = vx_new_uts(domainname);
++
++		memcpy(ptr, tmp, len);
++		ptr[len] = 0;
+ 		errno = 0;
+ 	}
+ 	up_write(&uts_sem);
+@@ -1627,7 +1648,7 @@ asmlinkage long sys_setrlimit(unsigned i
+                return -EINVAL;
+ 	old_rlim = current->signal->rlim + resource;
+ 	if ((new_rlim.rlim_max > old_rlim->rlim_max) &&
+-	    !capable(CAP_SYS_RESOURCE))
++	    !capable(CAP_SYS_RESOURCE) && !vx_ccaps(VXC_SET_RLIMIT))
+ 		return -EPERM;
+ 	if (resource == RLIMIT_NOFILE && new_rlim.rlim_max > NR_OPEN)
+ 			return -EPERM;
+Index: vserver-sources-2.0.1_2.6.15/kernel/sysctl.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/kernel/sysctl.c
++++ vserver-sources-2.0.1_2.6.15/kernel/sysctl.c
+@@ -42,6 +42,7 @@
+ #include <linux/limits.h>
+ #include <linux/dcache.h>
+ #include <linux/syscalls.h>
++#include <linux/vserver/cvirt.h>
+ 
+ #include <asm/uaccess.h>
+ #include <asm/processor.h>
+@@ -89,6 +90,7 @@ extern char hotplug_path[];
+ #ifdef CONFIG_FB_SPLASH
+ extern char fbsplash_path[];
+ #endif
++extern char vshelper_path[];
+ #ifdef CONFIG_CHR_DEV_SG
+ extern int sg_big_buff;
+ #endif
+@@ -245,6 +247,7 @@ static ctl_table kern_table[] = {
+ 		.maxlen		= sizeof(system_utsname.sysname),
+ 		.mode		= 0444,
+ 		.proc_handler	= &proc_doutsstring,
++		.virt_handler	= &vx_uts_virt_handler,
+ 		.strategy	= &sysctl_string,
+ 	},
+ 	{
+@@ -254,6 +257,7 @@ static ctl_table kern_table[] = {
+ 		.maxlen		= sizeof(system_utsname.release),
+ 		.mode		= 0444,
+ 		.proc_handler	= &proc_doutsstring,
++		.virt_handler	= &vx_uts_virt_handler,
+ 		.strategy	= &sysctl_string,
+ 	},
+ 	{
+@@ -263,6 +267,7 @@ static ctl_table kern_table[] = {
+ 		.maxlen		= sizeof(system_utsname.version),
+ 		.mode		= 0444,
+ 		.proc_handler	= &proc_doutsstring,
++		.virt_handler	= &vx_uts_virt_handler,
+ 		.strategy	= &sysctl_string,
+ 	},
+ 	{
+@@ -272,6 +277,7 @@ static ctl_table kern_table[] = {
+ 		.maxlen		= sizeof(system_utsname.nodename),
+ 		.mode		= 0644,
+ 		.proc_handler	= &proc_doutsstring,
++		.virt_handler	= &vx_uts_virt_handler,
+ 		.strategy	= &sysctl_string,
+ 	},
+ 	{
+@@ -281,6 +287,7 @@ static ctl_table kern_table[] = {
+ 		.maxlen		= sizeof(system_utsname.domainname),
+ 		.mode		= 0644,
+ 		.proc_handler	= &proc_doutsstring,
++		.virt_handler	= &vx_uts_virt_handler,
+ 		.strategy	= &sysctl_string,
+ 	},
+ 	{
+@@ -428,6 +435,15 @@ static ctl_table kern_table[] = {
+ 		.strategy	= &sysctl_string,
+ 	},
+ #endif
++	{
++		.ctl_name	= KERN_VSHELPER,
++		.procname	= "vshelper",
++		.data		= &vshelper_path,
++		.maxlen		= 256,
++		.mode		= 0644,
++		.proc_handler	= &proc_dostring,
++		.strategy	= &sysctl_string,
++	},
+ #ifdef CONFIG_CHR_DEV_SG
+ 	{
+ 		.ctl_name	= KERN_SG_BIG_BUFF,
+@@ -1521,16 +1537,20 @@ static ssize_t proc_writesys(struct file
+ int proc_dostring(ctl_table *table, int write, struct file *filp,
+ 		  void __user *buffer, size_t *lenp, loff_t *ppos)
+ {
+-	size_t len;
++	size_t len, maxlen;
+ 	char __user *p;
+ 	char c;
++	void *data;
++
++	data = table->data;
++	maxlen = table->maxlen;
++
++	if (!data || !maxlen || !*lenp || (*ppos && !write))
++		return (*lenp = 0);
+ 	
+-	if (!table->data || !table->maxlen || !*lenp ||
+-	    (*ppos && !write)) {
+-		*lenp = 0;
+-		return 0;
+-	}
+-	
++	if (table->virt_handler)
++		table->virt_handler(table, write, filp->f_xid, &data, &maxlen);
++
+ 	if (write) {
+ 		len = 0;
+ 		p = buffer;
+@@ -1541,20 +1561,20 @@ int proc_dostring(ctl_table *table, int 
+ 				break;
+ 			len++;
+ 		}
+-		if (len >= table->maxlen)
+-			len = table->maxlen-1;
+-		if(copy_from_user(table->data, buffer, len))
++		if (len >= maxlen)
++			len = maxlen-1;
++		if(copy_from_user(data, buffer, len))
+ 			return -EFAULT;
+-		((char *) table->data)[len] = 0;
++		((char *) data)[len] = 0;
+ 		*ppos += *lenp;
+ 	} else {
+-		len = strlen(table->data);
+-		if (len > table->maxlen)
+-			len = table->maxlen;
++		len = strlen(data);
++		if (len > maxlen)
++			len = maxlen;
+ 		if (len > *lenp)
+ 			len = *lenp;
+ 		if (len)
+-			if(copy_to_user(buffer, table->data, len))
++			if(copy_to_user(buffer, data, len))
+ 				return -EFAULT;
+ 		if (len < *lenp) {
+ 			if(put_user('\n', ((char __user *) buffer) + len))
+Index: vserver-sources-2.0.1_2.6.15/kernel/timer.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/kernel/timer.c
++++ vserver-sources-2.0.1_2.6.15/kernel/timer.c
+@@ -33,6 +33,8 @@
+ #include <linux/posix-timers.h>
+ #include <linux/cpu.h>
+ #include <linux/syscalls.h>
++#include <linux/vs_cvirt.h>
++#include <linux/vserver/sched.h>
+ 
+ #include <asm/uaccess.h>
+ #include <asm/unistd.h>
+@@ -923,12 +925,6 @@ asmlinkage unsigned long sys_alarm(unsig
+ 
+ #endif
+ 
+-#ifndef __alpha__
+-
+-/*
+- * The Alpha uses getxpid, getxuid, and getxgid instead.  Maybe this
+- * should be moved into arch/i386 instead?
+- */
+ 
+ /**
+  * sys_getpid - return the thread group id of the current process
+@@ -941,7 +937,7 @@ asmlinkage unsigned long sys_alarm(unsig
+  */
+ asmlinkage long sys_getpid(void)
+ {
+-	return current->tgid;
++	return vx_map_tgid(current->tgid);
+ }
+ 
+ /*
+@@ -985,9 +981,23 @@ asmlinkage long sys_getppid(void)
+ #endif
+ 		break;
+ 	}
+-	return pid;
++	return vx_map_pid(pid);
+ }
+ 
++#ifdef __alpha__
++
++/*
++ * The Alpha uses getxpid, getxuid, and getxgid instead.
++ */
++
++asmlinkage long do_getxpid(long *ppid)
++{
++	*ppid = sys_getppid();
++	return sys_getpid();
++}
++
++#else /* _alpha_ */
++
+ asmlinkage long sys_getuid(void)
+ {
+ 	/* Only we change this so SMP safe */
+@@ -1204,6 +1214,8 @@ asmlinkage long sys_sysinfo(struct sysin
+ 			tp.tv_nsec = tp.tv_nsec - NSEC_PER_SEC;
+ 			tp.tv_sec++;
+ 		}
++		if (vx_flags(VXF_VIRT_UPTIME, 0))
++			vx_vsi_uptime(&tp, NULL);
+ 		val.uptime = tp.tv_sec + (tp.tv_nsec ? 1 : 0);
+ 
+ 		val.loads[0] = avenrun[0] << (SI_LOAD_SHIFT - FSHIFT);
+Index: vserver-sources-2.0.1_2.6.15/kernel/user.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/kernel/user.c
++++ vserver-sources-2.0.1_2.6.15/kernel/user.c
+@@ -22,8 +22,8 @@
+ #define UIDHASH_BITS (CONFIG_BASE_SMALL ? 3 : 8)
+ #define UIDHASH_SZ		(1 << UIDHASH_BITS)
+ #define UIDHASH_MASK		(UIDHASH_SZ - 1)
+-#define __uidhashfn(uid)	(((uid >> UIDHASH_BITS) + uid) & UIDHASH_MASK)
+-#define uidhashentry(uid)	(uidhash_table + __uidhashfn((uid)))
++#define __uidhashfn(xid,uid)	((((uid) >> UIDHASH_BITS) + ((uid)^(xid))) & UIDHASH_MASK)
++#define uidhashentry(xid,uid)	(uidhash_table + __uidhashfn((xid),(uid)))
+ 
+ static kmem_cache_t *uid_cachep;
+ static struct list_head uidhash_table[UIDHASH_SZ];
+@@ -55,7 +55,7 @@ static inline void uid_hash_remove(struc
+ 	list_del(&up->uidhash_list);
+ }
+ 
+-static inline struct user_struct *uid_hash_find(uid_t uid, struct list_head *hashent)
++static inline struct user_struct *uid_hash_find(xid_t xid, uid_t uid, struct list_head *hashent)
+ {
+ 	struct list_head *up;
+ 
+@@ -64,7 +64,7 @@ static inline struct user_struct *uid_ha
+ 
+ 		user = list_entry(up, struct user_struct, uidhash_list);
+ 
+-		if(user->uid == uid) {
++		if(user->uid == uid && user->xid == xid) {
+ 			atomic_inc(&user->__count);
+ 			return user;
+ 		}
+@@ -79,12 +79,12 @@ static inline struct user_struct *uid_ha
+  *
+  * If the user_struct could not be found, return NULL.
+  */
+-struct user_struct *find_user(uid_t uid)
++struct user_struct *find_user(xid_t xid, uid_t uid)
+ {
+ 	struct user_struct *ret;
+ 
+ 	spin_lock(&uidhash_lock);
+-	ret = uid_hash_find(uid, uidhashentry(uid));
++	ret = uid_hash_find(xid, uid, uidhashentry(xid, uid));
+ 	spin_unlock(&uidhash_lock);
+ 	return ret;
+ }
+@@ -100,13 +100,13 @@ void free_uid(struct user_struct *up)
+ 	}
+ }
+ 
+-struct user_struct * alloc_uid(uid_t uid)
++struct user_struct * alloc_uid(xid_t xid, uid_t uid)
+ {
+-	struct list_head *hashent = uidhashentry(uid);
++	struct list_head *hashent = uidhashentry(xid, uid);
+ 	struct user_struct *up;
+ 
+ 	spin_lock(&uidhash_lock);
+-	up = uid_hash_find(uid, hashent);
++	up = uid_hash_find(xid, uid, hashent);
+ 	spin_unlock(&uidhash_lock);
+ 
+ 	if (!up) {
+@@ -116,6 +116,7 @@ struct user_struct * alloc_uid(uid_t uid
+ 		if (!new)
+ 			return NULL;
+ 		new->uid = uid;
++		new->xid = xid;
+ 		atomic_set(&new->__count, 1);
+ 		atomic_set(&new->processes, 0);
+ 		atomic_set(&new->files, 0);
+@@ -138,7 +139,7 @@ struct user_struct * alloc_uid(uid_t uid
+ 		 * on adding the same user already..
+ 		 */
+ 		spin_lock(&uidhash_lock);
+-		up = uid_hash_find(uid, hashent);
++		up = uid_hash_find(xid, uid, hashent);
+ 		if (up) {
+ 			key_put(new->uid_keyring);
+ 			key_put(new->session_keyring);
+@@ -184,7 +185,7 @@ static int __init uid_cache_init(void)
+ 
+ 	/* Insert the root user immediately (init already runs as root) */
+ 	spin_lock(&uidhash_lock);
+-	uid_hash_insert(&root_user, uidhashentry(0));
++	uid_hash_insert(&root_user, uidhashentry(0,0));
+ 	spin_unlock(&uidhash_lock);
+ 
+ 	return 0;
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/Kconfig
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/Kconfig
+@@ -0,0 +1,179 @@
++#
++# Linux VServer configuration
++#
++
++config	VSERVER
++	bool
++	default y
++
++config	VSERVER_SECURITY
++	bool
++	depends on SECURITY
++	default y
++	select SECURITY_CAPABILITIES
++
++config	VSERVER_LEGACYNET
++	bool
++	depends on !VSERVER_NGNET
++	default y
++
++menu "Linux VServer"
++
++config	VSERVER_LEGACY
++	bool	"Enable Legacy Kernel API"
++	default y
++	help
++	  This enables the legacy API used in vs1.xx, maintaining
++	  compatibility with older vserver tools, and guest images
++	  that are configured using the legacy method.  This is
++	  probably a good idea for now, for migration purposes.
++
++	  Note that some tools have not yet been altered to use
++	  this API, so disabling this option may reduce some
++	  functionality.
++
++config	VSERVER_LEGACY_VERSION
++	bool	"Show a Legacy Version ID"
++	depends on VSERVER_LEGACY
++	default n
++	help
++	  This shows a special legacy version to very old tools
++	  which do not handle the current version correctly.
++
++	  This will probably disable some features of newer tools
++	  so better avoid it, unless you really, really need it
++	  for backwards compatibility.
++
++config	VSERVER_NGNET
++	bool	"Disable Legacy Networking Kernel API"
++	depends on EXPERIMENTAL
++	default n
++	help
++	  This disables the legacy networking API which is required
++	  by the chbind tool. Do not disable it unless you exactly
++	  know what you are doing.
++
++config	VSERVER_PROC_SECURE
++	bool	"Enable Proc Security"
++	depends on PROC_FS
++	default y
++	help
++	  This configures ProcFS security to initially hide
++	  non-process entries for all contexts except the main and
++	  spectator context (i.e. for all guests), which is a secure
++	  default.
++
++	  (note: on 1.2x the entries were visible by default)
++
++config	VSERVER_HARDCPU
++	bool	"Enable Hard CPU Limits"
++	depends on EXPERIMENTAL
++	default n
++	help
++	  Activate the Hard CPU Limits
++
++	  This will compile in code that allows the Token Bucket
++	  Scheduler to put processes on hold when a context's
++	  tokens are depleted (provided that its per-context
++	  sched_hard flag is set).
++
++	  Processes belonging to that context will not be able
++	  to consume CPU resources again until a per-context
++	  configured minimum of tokens has been reached.
++
++config	VSERVER_HARDCPU_IDLE
++	bool	"Limit the IDLE task"
++	depends on VSERVER_HARDCPU
++	default n
++	help
++	  Limit the idle slices, so the the next context
++	  will be scheduled as soon as possible.
++
++	  This might improve interactivity and latency, but
++	  will also marginally increase scheduling overhead.
++
++choice
++	prompt	"Persistent Inode Context Tagging"
++	default	INOXID_UGID24
++	help
++	  This adds persistent context information to filesystems
++	  mounted with the tagxid option. Tagging is a requirement
++	  for per-context disk limits and per-context quota.
++
++
++config	INOXID_NONE
++	bool	"Disabled"
++	help
++	  do not store per-context information in inodes.
++
++config	INOXID_UID16
++	bool	"UID16/GID32"
++	help
++	  reduces UID to 16 bit, but leaves GID at 32 bit.
++
++config	INOXID_GID16
++	bool	"UID32/GID16"
++	help
++	  reduces GID to 16 bit, but leaves UID at 32 bit.
++
++config	INOXID_UGID24
++	bool	"UID24/GID24"
++	help
++	  uses the upper 8bit from UID and GID for XID tagging
++	  which leaves 24bit for UID/GID each, which should be
++	  more than sufficient for normal use.
++
++config	INOXID_INTERN
++	bool	"UID32/GID32"
++	help
++	  this uses otherwise reserved inode fields in the on
++	  disk representation, which limits the use to a few
++	  filesystems (currently ext2 and ext3)
++
++config	INOXID_RUNTIME
++	bool	"Runtime"
++	depends on EXPERIMENTAL
++	help
++	  inodes are tagged when first accessed, this doesn't
++	  require any persistant information, but might give
++	  funny results for mixed access.
++
++endchoice
++
++config	XID_TAG_NFSD
++	bool	"Tag NFSD User Auth and Files"
++	default n
++	help
++	  Enable this if you do want the in-kernel NFS
++	  Server to use the xid tagging specified above.
++	  (will require patched clients too)
++
++config	VSERVER_DEBUG
++	bool	"VServer Debugging Code"
++	default n
++	help
++	  Set this to yes if you want to be able to activate
++	  debugging output at runtime. It adds a probably small
++	  overhead to all vserver related functions and
++	  increases the kernel size by about 20k.
++
++config	VSERVER_HISTORY
++	bool	"VServer History Tracing"
++	depends on VSERVER_DEBUG
++	default n
++	help
++	  Set this to yes if you want to record the history of
++	  linux-vserver activities, so they can be replayed in
++	  the event of a kernel panic or oops.
++
++config	VSERVER_HISTORY_SIZE
++	int "Per-CPU History Size (32-65536)"
++	depends on VSERVER_HISTORY
++	range 32 65536
++	default 64
++	help
++	  This allows you to specify the number of entries in
++	  the per-CPU history buffer.
++
++endmenu
++
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/Makefile
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/Makefile
+@@ -0,0 +1,16 @@
++#
++# Makefile for the Linux vserver routines.
++#
++
++
++obj-y		+= vserver.o
++
++vserver-y	:= switch.o context.o namespace.o sched.o network.o inode.o \
++		   limit.o cvirt.o signal.o helper.o init.o dlimit.o
++
++vserver-$(CONFIG_PROC_FS) += proc.o
++vserver-$(CONFIG_VSERVER_DEBUG) += sysctl.o
++vserver-$(CONFIG_VSERVER_LEGACY) += legacy.o
++vserver-$(CONFIG_VSERVER_LEGACYNET) += legacynet.o
++vserver-$(CONFIG_VSERVER_HISTORY) += history.o
++
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/context.c
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/context.c
+@@ -0,0 +1,807 @@
++/*
++ *  linux/kernel/vserver/context.c
++ *
++ *  Virtual Server: Context Support
++ *
++ *  Copyright (C) 2003-2005  Herbert Pötzl
++ *
++ *  V0.01  context helper
++ *  V0.02  vx_ctx_kill syscall command
++ *  V0.03  replaced context_info calls
++ *  V0.04  redesign of struct (de)alloc
++ *  V0.05  rlimit basic implementation
++ *  V0.06  task_xid and info commands
++ *  V0.07  context flags and caps
++ *  V0.08  switch to RCU based hash
++ *  V0.09  revert to non RCU for now
++ *  V0.10  and back to working RCU hash
++ *  V0.11  and back to locking again
++ *
++ */
++
++#include <linux/config.h>
++#include <linux/slab.h>
++#include <linux/types.h>
++#include <linux/namespace.h>
++
++#include <linux/sched.h>
++#include <linux/vserver/network.h>
++#include <linux/vserver/legacy.h>
++#include <linux/vserver/limit.h>
++#include <linux/vserver/debug.h>
++#include <linux/vserver/limit_int.h>
++
++#include <linux/vs_context.h>
++#include <linux/vserver/context_cmd.h>
++
++#include <linux/err.h>
++#include <asm/errno.h>
++
++#include "cvirt_init.h"
++#include "limit_init.h"
++#include "sched_init.h"
++
++
++/*	__alloc_vx_info()
++
++	* allocate an initialized vx_info struct
++	* doesn't make it visible (hash)			*/
++
++static struct vx_info *__alloc_vx_info(xid_t xid)
++{
++	struct vx_info *new = NULL;
++
++	vxdprintk(VXD_CBIT(xid, 0), "alloc_vx_info(%d)*", xid);
++
++	/* would this benefit from a slab cache? */
++	new = kmalloc(sizeof(struct vx_info), GFP_KERNEL);
++	if (!new)
++		return 0;
++
++	memset (new, 0, sizeof(struct vx_info));
++	new->vx_id = xid;
++	INIT_HLIST_NODE(&new->vx_hlist);
++	atomic_set(&new->vx_usecnt, 0);
++	atomic_set(&new->vx_tasks, 0);
++	new->vx_parent = NULL;
++	new->vx_state = 0;
++	init_waitqueue_head(&new->vx_wait);
++
++	/* rest of init goes here */
++	vx_info_init_limit(&new->limit);
++	vx_info_init_sched(&new->sched);
++	vx_info_init_cvirt(&new->cvirt);
++	vx_info_init_cacct(&new->cacct);
++
++	new->vx_flags = VXF_INIT_SET;
++	new->vx_bcaps = CAP_INIT_EFF_SET;
++	new->vx_ccaps = 0;
++
++	vxdprintk(VXD_CBIT(xid, 0),
++		"alloc_vx_info(%d) = %p", xid, new);
++	vxh_alloc_vx_info(new);
++	return new;
++}
++
++/*	__dealloc_vx_info()
++
++	* final disposal of vx_info				*/
++
++static void __dealloc_vx_info(struct vx_info *vxi)
++{
++	vxdprintk(VXD_CBIT(xid, 0),
++		"dealloc_vx_info(%p)", vxi);
++	vxh_dealloc_vx_info(vxi);
++
++	vxi->vx_hlist.next = LIST_POISON1;
++	vxi->vx_id = -1;
++
++	vx_info_exit_limit(&vxi->limit);
++	vx_info_exit_sched(&vxi->sched);
++	vx_info_exit_cvirt(&vxi->cvirt);
++	vx_info_exit_cacct(&vxi->cacct);
++
++	vxi->vx_state |= VXS_RELEASED;
++	kfree(vxi);
++}
++
++static void __shutdown_vx_info(struct vx_info *vxi)
++{
++	struct namespace *namespace;
++	struct fs_struct *fs;
++
++	might_sleep();
++
++	vxi->vx_state |= VXS_SHUTDOWN;
++	vs_state_change(vxi, VSC_SHUTDOWN);
++
++	namespace = xchg(&vxi->vx_namespace, NULL);
++	if (namespace)
++		put_namespace(namespace);
++
++	fs = xchg(&vxi->vx_fs, NULL);
++	if (fs)
++		put_fs_struct(fs);
++}
++
++/* exported stuff */
++
++void free_vx_info(struct vx_info *vxi)
++{
++	/* context shutdown is mandatory */
++	BUG_ON(!vx_info_state(vxi, VXS_SHUTDOWN));
++
++	BUG_ON(atomic_read(&vxi->vx_usecnt));
++	BUG_ON(atomic_read(&vxi->vx_tasks));
++
++	BUG_ON(vx_info_state(vxi, VXS_HASHED));
++
++	BUG_ON(vxi->vx_namespace);
++	BUG_ON(vxi->vx_fs);
++
++	__dealloc_vx_info(vxi);
++}
++
++
++/*	hash table for vx_info hash */
++
++#define VX_HASH_SIZE	13
++
++struct hlist_head vx_info_hash[VX_HASH_SIZE];
++
++static spinlock_t vx_info_hash_lock = SPIN_LOCK_UNLOCKED;
++
++
++static inline unsigned int __hashval(xid_t xid)
++{
++	return (xid % VX_HASH_SIZE);
++}
++
++
++
++/*	__hash_vx_info()
++
++	* add the vxi to the global hash table
++	* requires the hash_lock to be held			*/
++
++static inline void __hash_vx_info(struct vx_info *vxi)
++{
++	struct hlist_head *head;
++
++	vxd_assert_lock(&vx_info_hash_lock);
++	vxdprintk(VXD_CBIT(xid, 4),
++		"__hash_vx_info: %p[#%d]", vxi, vxi->vx_id);
++	vxh_hash_vx_info(vxi);
++
++	/* context must not be hashed */
++	BUG_ON(vx_info_state(vxi, VXS_HASHED));
++
++	vxi->vx_state |= VXS_HASHED;
++	head = &vx_info_hash[__hashval(vxi->vx_id)];
++	hlist_add_head(&vxi->vx_hlist, head);
++}
++
++/*	__unhash_vx_info()
++
++	* remove the vxi from the global hash table
++	* requires the hash_lock to be held			*/
++
++static inline void __unhash_vx_info(struct vx_info *vxi)
++{
++	vxd_assert_lock(&vx_info_hash_lock);
++	vxdprintk(VXD_CBIT(xid, 4),
++		"__unhash_vx_info: %p[#%d]", vxi, vxi->vx_id);
++	vxh_unhash_vx_info(vxi);
++
++	/* context must be hashed */
++	BUG_ON(!vx_info_state(vxi, VXS_HASHED));
++
++	vxi->vx_state &= ~VXS_HASHED;
++	hlist_del(&vxi->vx_hlist);
++}
++
++
++/*	__lookup_vx_info()
++
++	* requires the hash_lock to be held
++	* doesn't increment the vx_refcnt			*/
++
++static inline struct vx_info *__lookup_vx_info(xid_t xid)
++{
++	struct hlist_head *head = &vx_info_hash[__hashval(xid)];
++	struct hlist_node *pos;
++	struct vx_info *vxi;
++
++	vxd_assert_lock(&vx_info_hash_lock);
++	hlist_for_each(pos, head) {
++		vxi = hlist_entry(pos, struct vx_info, vx_hlist);
++
++		if (vxi->vx_id == xid)
++			goto found;
++	}
++	vxi = NULL;
++found:
++	vxdprintk(VXD_CBIT(xid, 0),
++		"__lookup_vx_info(#%u): %p[#%u]",
++		xid, vxi, vxi?vxi->vx_id:0);
++	vxh_lookup_vx_info(vxi, xid);
++	return vxi;
++}
++
++
++/*	__vx_dynamic_id()
++
++	* find unused dynamic xid
++	* requires the hash_lock to be held			*/
++
++static inline xid_t __vx_dynamic_id(void)
++{
++	static xid_t seq = MAX_S_CONTEXT;
++	xid_t barrier = seq;
++
++	vxd_assert_lock(&vx_info_hash_lock);
++	do {
++		if (++seq > MAX_S_CONTEXT)
++			seq = MIN_D_CONTEXT;
++		if (!__lookup_vx_info(seq)) {
++			vxdprintk(VXD_CBIT(xid, 4),
++				"__vx_dynamic_id: [#%d]", seq);
++			return seq;
++		}
++	} while (barrier != seq);
++	return 0;
++}
++
++#ifdef	CONFIG_VSERVER_LEGACY
++
++/*	__loc_vx_info()
++
++	* locate or create the requested context
++	* get() it and if new hash it				*/
++
++static struct vx_info * __loc_vx_info(int id, int *err)
++{
++	struct vx_info *new, *vxi = NULL;
++
++	vxdprintk(VXD_CBIT(xid, 1), "loc_vx_info(%d)*", id);
++
++	if (!(new = __alloc_vx_info(id))) {
++		*err = -ENOMEM;
++		return NULL;
++	}
++
++	/* required to make dynamic xids unique */
++	spin_lock(&vx_info_hash_lock);
++
++	/* dynamic context requested */
++	if (id == VX_DYNAMIC_ID) {
++		id = __vx_dynamic_id();
++		if (!id) {
++			printk(KERN_ERR "no dynamic context available.\n");
++			goto out_unlock;
++		}
++		new->vx_id = id;
++	}
++	/* existing context requested */
++	else if ((vxi = __lookup_vx_info(id))) {
++		/* context in setup is not available */
++		if (vxi->vx_flags & VXF_STATE_SETUP) {
++			vxdprintk(VXD_CBIT(xid, 0),
++				"loc_vx_info(%d) = %p (not available)", id, vxi);
++			vxi = NULL;
++			*err = -EBUSY;
++		} else {
++			vxdprintk(VXD_CBIT(xid, 0),
++				"loc_vx_info(%d) = %p (found)", id, vxi);
++			get_vx_info(vxi);
++			*err = 0;
++		}
++		goto out_unlock;
++	}
++
++	/* new context requested */
++	vxdprintk(VXD_CBIT(xid, 0),
++		"loc_vx_info(%d) = %p (new)", id, new);
++	__hash_vx_info(get_vx_info(new));
++	vxi = new, new = NULL;
++	*err = 1;
++
++out_unlock:
++	spin_unlock(&vx_info_hash_lock);
++	vxh_loc_vx_info(vxi, id);
++	if (new)
++		__dealloc_vx_info(new);
++	return vxi;
++}
++
++#endif
++
++/*	__create_vx_info()
++
++	* create the requested context
++	* get() and hash it					*/
++
++static struct vx_info * __create_vx_info(int id)
++{
++	struct vx_info *new, *vxi = NULL;
++
++	vxdprintk(VXD_CBIT(xid, 1), "create_vx_info(%d)*", id);
++
++	if (!(new = __alloc_vx_info(id)))
++		return ERR_PTR(-ENOMEM);
++
++	/* required to make dynamic xids unique */
++	spin_lock(&vx_info_hash_lock);
++
++	/* dynamic context requested */
++	if (id == VX_DYNAMIC_ID) {
++		id = __vx_dynamic_id();
++		if (!id) {
++			printk(KERN_ERR "no dynamic context available.\n");
++			vxi = ERR_PTR(-EAGAIN);
++			goto out_unlock;
++		}
++		new->vx_id = id;
++	}
++	/* static context requested */
++	else if ((vxi = __lookup_vx_info(id))) {
++		vxdprintk(VXD_CBIT(xid, 0),
++			"create_vx_info(%d) = %p (already there)", id, vxi);
++		if (vx_info_flags(vxi, VXF_STATE_SETUP, 0))
++			vxi = ERR_PTR(-EBUSY);
++		else
++			vxi = ERR_PTR(-EEXIST);
++		goto out_unlock;
++	}
++	/* dynamic xid creation blocker */
++	else if (id >= MIN_D_CONTEXT) {
++		vxdprintk(VXD_CBIT(xid, 0),
++			"create_vx_info(%d) (dynamic rejected)", id);
++		vxi = ERR_PTR(-EINVAL);
++		goto out_unlock;
++	}
++
++	/* new context */
++	vxdprintk(VXD_CBIT(xid, 0),
++		"create_vx_info(%d) = %p (new)", id, new);
++	__hash_vx_info(get_vx_info(new));
++	vxi = new, new = NULL;
++
++out_unlock:
++	spin_unlock(&vx_info_hash_lock);
++	vxh_create_vx_info(IS_ERR(vxi)?NULL:vxi, id);
++	if (new)
++		__dealloc_vx_info(new);
++	return vxi;
++}
++
++
++/*	exported stuff						*/
++
++
++void unhash_vx_info(struct vx_info *vxi)
++{
++	__shutdown_vx_info(vxi);
++	spin_lock(&vx_info_hash_lock);
++	__unhash_vx_info(vxi);
++	spin_unlock(&vx_info_hash_lock);
++	__wakeup_vx_info(vxi);
++}
++
++
++/*	locate_vx_info()
++
++	* search for a vx_info and get() it
++	* negative id means current				*/
++
++struct vx_info *locate_vx_info(int id)
++{
++	struct vx_info *vxi = NULL;
++
++	if (id < 0) {
++		vxi = get_vx_info(current->vx_info);
++	} else if (id > 1) {
++		spin_lock(&vx_info_hash_lock);
++		vxi = get_vx_info(__lookup_vx_info(id));
++		spin_unlock(&vx_info_hash_lock);
++	}
++	return vxi;
++}
++
++/*	xid_is_hashed()
++
++	* verify that xid is still hashed			*/
++
++int xid_is_hashed(xid_t xid)
++{
++	int hashed;
++
++	spin_lock(&vx_info_hash_lock);
++	hashed = (__lookup_vx_info(xid) != NULL);
++	spin_unlock(&vx_info_hash_lock);
++	return hashed;
++}
++
++#ifdef	CONFIG_VSERVER_LEGACY
++
++struct vx_info *locate_or_create_vx_info(int id)
++{
++	int err;
++
++	return __loc_vx_info(id, &err);
++}
++
++#endif
++
++#ifdef	CONFIG_PROC_FS
++
++int get_xid_list(int index, unsigned int *xids, int size)
++{
++	int hindex, nr_xids = 0;
++
++	for (hindex = 0; hindex < VX_HASH_SIZE; hindex++) {
++		struct hlist_head *head = &vx_info_hash[hindex];
++		struct hlist_node *pos;
++
++		spin_lock(&vx_info_hash_lock);
++		hlist_for_each(pos, head) {
++			struct vx_info *vxi;
++
++			if (--index > 0)
++				continue;
++
++			vxi = hlist_entry(pos, struct vx_info, vx_hlist);
++			xids[nr_xids] = vxi->vx_id;
++			if (++nr_xids >= size) {
++				spin_unlock(&vx_info_hash_lock);
++				goto out;
++			}
++		}
++		/* keep the lock time short */
++		spin_unlock(&vx_info_hash_lock);
++	}
++out:
++	return nr_xids;
++}
++#endif
++
++
++int vx_migrate_user(struct task_struct *p, struct vx_info *vxi)
++{
++	struct user_struct *new_user, *old_user;
++
++	if (!p || !vxi)
++		BUG();
++	new_user = alloc_uid(vxi->vx_id, p->uid);
++	if (!new_user)
++		return -ENOMEM;
++
++	old_user = p->user;
++	if (new_user != old_user) {
++		atomic_inc(&new_user->processes);
++		atomic_dec(&old_user->processes);
++		p->user = new_user;
++	}
++	free_uid(old_user);
++	return 0;
++}
++
++void vx_mask_bcaps(struct task_struct *p)
++{
++	struct vx_info *vxi = p->vx_info;
++
++	p->cap_effective &= vxi->vx_bcaps;
++	p->cap_inheritable &= vxi->vx_bcaps;
++	p->cap_permitted &= vxi->vx_bcaps;
++}
++
++
++#include <linux/file.h>
++
++static int vx_openfd_task(struct task_struct *tsk)
++{
++	struct files_struct *files = tsk->files;
++	struct fdtable *fdt;
++	const unsigned long *bptr;
++	int count, total;
++
++	/* no rcu_read_lock() because of spin_lock() */
++	spin_lock(&files->file_lock);
++	fdt = files_fdtable(files);
++	bptr = fdt->open_fds->fds_bits;
++	count = fdt->max_fds / (sizeof(unsigned long) * 8);
++	for (total = 0; count > 0; count--) {
++		if (*bptr)
++			total += hweight_long(*bptr);
++		bptr++;
++	}
++	spin_unlock(&files->file_lock);
++	return total;
++}
++
++/*
++ *	migrate task to new context
++ *	gets vxi, puts old_vxi on change
++ */
++
++int vx_migrate_task(struct task_struct *p, struct vx_info *vxi)
++{
++	struct vx_info *old_vxi;
++	int ret = 0;
++
++	if (!p || !vxi)
++		BUG();
++
++	old_vxi = task_get_vx_info(p);
++	if (old_vxi == vxi)
++		goto out;
++
++	vxdprintk(VXD_CBIT(xid, 5),
++		"vx_migrate_task(%p,%p[#%d.%d])", p, vxi,
++		vxi->vx_id, atomic_read(&vxi->vx_usecnt));
++
++	if (!(ret = vx_migrate_user(p, vxi))) {
++		int openfd;
++
++		task_lock(p);
++		openfd = vx_openfd_task(p);
++
++		if (old_vxi) {
++			atomic_dec(&old_vxi->cvirt.nr_threads);
++			atomic_dec(&old_vxi->cvirt.nr_running);
++			atomic_dec(&old_vxi->limit.rcur[RLIMIT_NPROC]);
++			/* FIXME: what about the struct files here? */
++			atomic_sub(openfd, &old_vxi->limit.rcur[VLIMIT_OPENFD]);
++		}
++		atomic_inc(&vxi->cvirt.nr_threads);
++		atomic_inc(&vxi->cvirt.nr_running);
++		atomic_inc(&vxi->limit.rcur[RLIMIT_NPROC]);
++		/* FIXME: what about the struct files here? */
++		atomic_add(openfd, &vxi->limit.rcur[VLIMIT_OPENFD]);
++
++		if (old_vxi) {
++			release_vx_info(old_vxi, p);
++			clr_vx_info(&p->vx_info);
++		}
++		claim_vx_info(vxi, p);
++		set_vx_info(&p->vx_info, vxi);
++		p->xid = vxi->vx_id;
++
++		vxdprintk(VXD_CBIT(xid, 5),
++			"moved task %p into vxi:%p[#%d]",
++			p, vxi, vxi->vx_id);
++
++		vx_mask_bcaps(p);
++		task_unlock(p);
++	}
++out:
++	put_vx_info(old_vxi);
++	return ret;
++}
++
++int vx_set_init(struct vx_info *vxi, struct task_struct *p)
++{
++	if (!vxi)
++		return -EINVAL;
++	if (vxi->vx_initpid)
++		return -EPERM;
++
++	vxdprintk(VXD_CBIT(xid, 6),
++		"vx_set_init(%p[#%d],%p[#%d,%d,%d])",
++		vxi, vxi->vx_id, p, p->xid, p->pid, p->tgid);
++
++	vxi->vx_initpid = p->tgid;
++	return 0;
++}
++
++
++/* vserver syscall commands below here */
++
++/* taks xid and vx_info functions */
++
++#include <asm/uaccess.h>
++
++
++int vc_task_xid(uint32_t id, void __user *data)
++{
++	xid_t xid;
++
++	if (id) {
++		struct task_struct *tsk;
++
++		if (!vx_check(0, VX_ADMIN|VX_WATCH))
++			return -EPERM;
++
++		read_lock(&tasklist_lock);
++		tsk = find_task_by_real_pid(id);
++		xid = (tsk) ? tsk->xid : -ESRCH;
++		read_unlock(&tasklist_lock);
++	}
++	else
++		xid = vx_current_xid();
++	return xid;
++}
++
++
++int vc_vx_info(uint32_t id, void __user *data)
++{
++	struct vx_info *vxi;
++	struct vcmd_vx_info_v0 vc_data;
++
++	if (!vx_check(0, VX_ADMIN))
++		return -ENOSYS;
++	if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RESOURCE))
++		return -EPERM;
++
++	vxi = locate_vx_info(id);
++	if (!vxi)
++		return -ESRCH;
++
++	vc_data.xid = vxi->vx_id;
++	vc_data.initpid = vxi->vx_initpid;
++	put_vx_info(vxi);
++
++	if (copy_to_user (data, &vc_data, sizeof(vc_data)))
++		return -EFAULT;
++	return 0;
++}
++
++
++/* context functions */
++
++int vc_ctx_create(uint32_t xid, void __user *data)
++{
++	struct vcmd_ctx_create vc_data = { .flagword = VXF_INIT_SET };
++	struct vx_info *new_vxi;
++	int ret;
++
++	if (!capable(CAP_SYS_ADMIN))
++		return -EPERM;
++	if (data && copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	if ((xid > MAX_S_CONTEXT) && (xid != VX_DYNAMIC_ID))
++		return -EINVAL;
++	if (xid < 2)
++		return -EINVAL;
++
++	new_vxi = __create_vx_info(xid);
++	if (IS_ERR(new_vxi))
++		return PTR_ERR(new_vxi);
++
++	/* initial flags */
++	new_vxi->vx_flags = vc_data.flagword;
++
++	vs_state_change(new_vxi, VSC_STARTUP);
++	ret = new_vxi->vx_id;
++	vx_migrate_task(current, new_vxi);
++	/* if this fails, we might end up with a hashed vx_info */
++	put_vx_info(new_vxi);
++	return ret;
++}
++
++
++int vc_ctx_migrate(uint32_t id, void __user *data)
++{
++	struct vx_info *vxi;
++
++	if (!capable(CAP_SYS_ADMIN))
++		return -EPERM;
++
++	/* dirty hack until Spectator becomes a cap */
++	if (id == 1) {
++		current->xid = 1;
++		return 0;
++	}
++
++	vxi = locate_vx_info(id);
++	if (!vxi)
++		return -ESRCH;
++	vx_migrate_task(current, vxi);
++	put_vx_info(vxi);
++	return 0;
++}
++
++
++int vc_get_cflags(uint32_t id, void __user *data)
++{
++	struct vx_info *vxi;
++	struct vcmd_ctx_flags_v0 vc_data;
++
++	if (!capable(CAP_SYS_ADMIN))
++		return -EPERM;
++
++	vxi = locate_vx_info(id);
++	if (!vxi)
++		return -ESRCH;
++
++	vc_data.flagword = vxi->vx_flags;
++
++	/* special STATE flag handling */
++	vc_data.mask = vx_mask_flags(~0UL, vxi->vx_flags, VXF_ONE_TIME);
++
++	put_vx_info(vxi);
++
++	if (copy_to_user (data, &vc_data, sizeof(vc_data)))
++		return -EFAULT;
++	return 0;
++}
++
++int vc_set_cflags(uint32_t id, void __user *data)
++{
++	struct vx_info *vxi;
++	struct vcmd_ctx_flags_v0 vc_data;
++	uint64_t mask, trigger;
++
++	if (!capable(CAP_SYS_ADMIN))
++		return -EPERM;
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	vxi = locate_vx_info(id);
++	if (!vxi)
++		return -ESRCH;
++
++	/* special STATE flag handling */
++	mask = vx_mask_mask(vc_data.mask, vxi->vx_flags, VXF_ONE_TIME);
++	trigger = (mask & vxi->vx_flags) ^ (mask & vc_data.flagword);
++
++	if (trigger & VXF_STATE_SETUP)
++		vx_mask_bcaps(current);
++	if (trigger & VXF_STATE_INIT)
++		if (vxi == current->vx_info)
++			vx_set_init(vxi, current);
++
++	vxi->vx_flags = vx_mask_flags(vxi->vx_flags,
++		vc_data.flagword, mask);
++	put_vx_info(vxi);
++	return 0;
++}
++
++int vc_get_ccaps(uint32_t id, void __user *data)
++{
++	struct vx_info *vxi;
++	struct vcmd_ctx_caps_v0 vc_data;
++
++	if (!capable(CAP_SYS_ADMIN))
++		return -EPERM;
++
++	vxi = locate_vx_info(id);
++	if (!vxi)
++		return -ESRCH;
++
++	vc_data.bcaps = vxi->vx_bcaps;
++	vc_data.ccaps = vxi->vx_ccaps;
++	vc_data.cmask = ~0UL;
++	put_vx_info(vxi);
++
++	if (copy_to_user (data, &vc_data, sizeof(vc_data)))
++		return -EFAULT;
++	return 0;
++}
++
++int vc_set_ccaps(uint32_t id, void __user *data)
++{
++	struct vx_info *vxi;
++	struct vcmd_ctx_caps_v0 vc_data;
++
++	if (!capable(CAP_SYS_ADMIN))
++		return -EPERM;
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	vxi = locate_vx_info(id);
++	if (!vxi)
++		return -ESRCH;
++
++	vxi->vx_bcaps &= vc_data.bcaps;
++	vxi->vx_ccaps = vx_mask_flags(vxi->vx_ccaps,
++		vc_data.ccaps, vc_data.cmask);
++	put_vx_info(vxi);
++	return 0;
++}
++
++#include <linux/module.h>
++
++EXPORT_SYMBOL_GPL(free_vx_info);
++
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/cvirt.c
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/cvirt.c
+@@ -0,0 +1,260 @@
++/*
++ *  linux/kernel/vserver/cvirt.c
++ *
++ *  Virtual Server: Context Virtualization
++ *
++ *  Copyright (C) 2004-2005  Herbert Pötzl
++ *
++ *  V0.01  broken out from limit.c
++ *  V0.02  added utsname stuff
++ *
++ */
++
++#include <linux/config.h>
++#include <linux/sched.h>
++#include <linux/sysctl.h>
++#include <linux/types.h>
++#include <linux/vs_context.h>
++#include <linux/vs_cvirt.h>
++#include <linux/vserver/switch.h>
++#include <linux/vserver/cvirt_cmd.h>
++
++#include <asm/errno.h>
++#include <asm/uaccess.h>
++
++
++void vx_vsi_uptime(struct timespec *uptime, struct timespec *idle)
++{
++	struct vx_info *vxi = current->vx_info;
++
++	set_normalized_timespec(uptime,
++		uptime->tv_sec - vxi->cvirt.bias_uptime.tv_sec,
++		uptime->tv_nsec - vxi->cvirt.bias_uptime.tv_nsec);
++	if (!idle)
++		return;
++	set_normalized_timespec(idle,
++		idle->tv_sec - vxi->cvirt.bias_idle.tv_sec,
++		idle->tv_nsec - vxi->cvirt.bias_idle.tv_nsec);
++	return;
++}
++
++uint64_t vx_idle_jiffies(void)
++{
++	return init_task.utime + init_task.stime;
++}
++
++
++
++static inline uint32_t __update_loadavg(uint32_t load,
++	int wsize, int delta, int n)
++{
++	unsigned long long calc, prev;
++
++	/* just set it to n */
++	if (unlikely(delta >= wsize))
++		return (n << FSHIFT);
++
++	calc = delta * n;
++	calc <<= FSHIFT;
++	prev = (wsize - delta);
++	prev *= load;
++	calc += prev;
++	do_div(calc, wsize);
++	return calc;
++}
++
++
++void vx_update_load(struct vx_info *vxi)
++{
++	uint32_t now, last, delta;
++	unsigned int nr_running, nr_uninterruptible;
++	unsigned int total;
++
++	spin_lock(&vxi->cvirt.load_lock);
++
++	now = jiffies;
++	last = vxi->cvirt.load_last;
++	delta = now - last;
++
++	if (delta < 5*HZ)
++		goto out;
++
++	nr_running = atomic_read(&vxi->cvirt.nr_running);
++	nr_uninterruptible = atomic_read(&vxi->cvirt.nr_uninterruptible);
++	total = nr_running + nr_uninterruptible;
++
++	vxi->cvirt.load[0] = __update_loadavg(vxi->cvirt.load[0],
++		60*HZ, delta, total);
++	vxi->cvirt.load[1] = __update_loadavg(vxi->cvirt.load[1],
++		5*60*HZ, delta, total);
++	vxi->cvirt.load[2] = __update_loadavg(vxi->cvirt.load[2],
++		15*60*HZ, delta, total);
++
++	vxi->cvirt.load_last = now;
++out:
++	atomic_inc(&vxi->cvirt.load_updates);
++	spin_unlock(&vxi->cvirt.load_lock);
++}
++
++
++int vx_uts_virt_handler(struct ctl_table *ctl, int write, xid_t xid,
++	void **datap, size_t *lenp)
++{
++	switch (ctl->ctl_name) {
++	case KERN_OSTYPE:
++		*datap = vx_new_uts(sysname);
++		break;
++	case KERN_OSRELEASE:
++		*datap = vx_new_uts(release);
++		break;
++	case KERN_VERSION:
++		*datap = vx_new_uts(version);
++		break;
++	case KERN_NODENAME:
++		*datap = vx_new_uts(nodename);
++		break;
++	case KERN_DOMAINNAME:
++		*datap = vx_new_uts(domainname);
++		break;
++	}
++
++	return 0;
++}
++
++
++
++/*
++ * Commands to do_syslog:
++ *
++ *      0 -- Close the log.  Currently a NOP.
++ *      1 -- Open the log. Currently a NOP.
++ *      2 -- Read from the log.
++ *      3 -- Read all messages remaining in the ring buffer.
++ *      4 -- Read and clear all messages remaining in the ring buffer
++ *      5 -- Clear ring buffer.
++ *      6 -- Disable printk's to console
++ *      7 -- Enable printk's to console
++ *      8 -- Set level of messages printed to console
++ *      9 -- Return number of unread characters in the log buffer
++ *     10 -- Return size of the log buffer
++ */
++int vx_do_syslog(int type, char __user *buf, int len)
++{
++	int error = 0;
++	int do_clear = 0;
++	struct vx_info *vxi = current->vx_info;
++	struct _vx_syslog *log;
++
++	if (!vxi)
++		return -EINVAL;
++	log = &vxi->cvirt.syslog;
++
++	switch (type) {
++	case 0:		/* Close log */
++	case 1:		/* Open log */
++		break;
++	case 2:		/* Read from log */
++		error = wait_event_interruptible(log->log_wait,
++			(log->log_start - log->log_end));
++		if (error)
++			break;
++		spin_lock_irq(&log->logbuf_lock);
++		spin_unlock_irq(&log->logbuf_lock);
++		break;
++	case 4:		/* Read/clear last kernel messages */
++		do_clear = 1;
++		/* fall through */
++	case 3:		/* Read last kernel messages */
++		return 0;
++
++	case 5:		/* Clear ring buffer */
++		return 0;
++
++	case 6:		/* Disable logging to console */
++	case 7:		/* Enable logging to console */
++	case 8:		/* Set level of messages printed to console */
++		break;
++
++	case 9:		/* Number of chars in the log buffer */
++		return 0;
++	case 10:	/* Size of the log buffer */
++		return 0;
++	default:
++		error = -EINVAL;
++		break;
++	}
++	return error;
++}
++
++
++/* virtual host info names */
++
++static char * vx_vhi_name(struct vx_info *vxi, int id)
++{
++	switch (id) {
++	case VHIN_CONTEXT:
++		return vxi->vx_name;
++	case VHIN_SYSNAME:
++		return vxi->cvirt.utsname.sysname;
++	case VHIN_NODENAME:
++		return vxi->cvirt.utsname.nodename;
++	case VHIN_RELEASE:
++		return vxi->cvirt.utsname.release;
++	case VHIN_VERSION:
++		return vxi->cvirt.utsname.version;
++	case VHIN_MACHINE:
++		return vxi->cvirt.utsname.machine;
++	case VHIN_DOMAINNAME:
++		return vxi->cvirt.utsname.domainname;
++	default:
++		return NULL;
++	}
++	return NULL;
++}
++
++int vc_set_vhi_name(uint32_t id, void __user *data)
++{
++	struct vx_info *vxi;
++	struct vcmd_vhi_name_v0 vc_data;
++	char *name;
++
++	if (!capable(CAP_SYS_ADMIN))
++		return -EPERM;
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	vxi = locate_vx_info(id);
++	if (!vxi)
++		return -ESRCH;
++
++	name = vx_vhi_name(vxi, vc_data.field);
++	if (name)
++		memcpy(name, vc_data.name, 65);
++	put_vx_info(vxi);
++	return (name ? 0 : -EFAULT);
++}
++
++int vc_get_vhi_name(uint32_t id, void __user *data)
++{
++	struct vx_info *vxi;
++	struct vcmd_vhi_name_v0 vc_data;
++	char *name;
++
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	vxi = locate_vx_info(id);
++	if (!vxi)
++		return -ESRCH;
++
++	name = vx_vhi_name(vxi, vc_data.field);
++	if (!name)
++		goto out_put;
++
++	memcpy(vc_data.name, name, 65);
++	if (copy_to_user (data, &vc_data, sizeof(vc_data)))
++		return -EFAULT;
++out_put:
++	put_vx_info(vxi);
++	return (name ? 0 : -EFAULT);
++}
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/cvirt_init.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/cvirt_init.h
+@@ -0,0 +1,77 @@
++
++extern uint64_t vx_idle_jiffies(void);
++
++static inline void vx_info_init_cvirt(struct _vx_cvirt *cvirt)
++{
++	uint64_t idle_jiffies = vx_idle_jiffies();
++	uint64_t nsuptime;
++
++	do_posix_clock_monotonic_gettime(&cvirt->bias_uptime);
++	nsuptime = (unsigned long long)cvirt->bias_uptime.tv_sec
++		* NSEC_PER_SEC + cvirt->bias_uptime.tv_nsec;
++	cvirt->bias_clock = nsec_to_clock_t(nsuptime);
++
++	jiffies_to_timespec(idle_jiffies, &cvirt->bias_idle);
++	atomic_set(&cvirt->nr_threads, 0);
++	atomic_set(&cvirt->nr_running, 0);
++	atomic_set(&cvirt->nr_uninterruptible, 0);
++	atomic_set(&cvirt->nr_onhold, 0);
++
++	down_read(&uts_sem);
++	cvirt->utsname = system_utsname;
++	up_read(&uts_sem);
++
++	spin_lock_init(&cvirt->load_lock);
++	cvirt->load_last = jiffies;
++	atomic_set(&cvirt->load_updates, 0);
++	cvirt->load[0] = 0;
++	cvirt->load[1] = 0;
++	cvirt->load[2] = 0;
++
++	atomic_set(&cvirt->total_forks, 0);
++	spin_lock_init(&cvirt->syslog.logbuf_lock);
++	init_waitqueue_head(&cvirt->syslog.log_wait);
++	cvirt->syslog.log_start = 0;
++	cvirt->syslog.log_end = 0;
++	cvirt->syslog.con_start = 0;
++	cvirt->syslog.logged_chars = 0;
++}
++
++static inline void vx_info_exit_cvirt(struct _vx_cvirt *cvirt)
++{
++#ifdef	CONFIG_VSERVER_DEBUG
++	int value;
++
++	vxwprintk((value = atomic_read(&cvirt->nr_threads)),
++		"!!! cvirt: %p[nr_threads] = %d on exit.",
++		cvirt, value);
++	vxwprintk((value = atomic_read(&cvirt->nr_running)),
++		"!!! cvirt: %p[nr_running] = %d on exit.",
++		cvirt, value);
++	vxwprintk((value = atomic_read(&cvirt->nr_uninterruptible)),
++		"!!! cvirt: %p[nr_uninterruptible] = %d on exit.",
++		cvirt, value);
++	vxwprintk((value = atomic_read(&cvirt->nr_onhold)),
++		"!!! cvirt: %p[nr_onhold] = %d on exit.",
++		cvirt, value);
++#endif
++	return;
++}
++
++static inline void vx_info_init_cacct(struct _vx_cacct *cacct)
++{
++	int i,j;
++
++	for (i=0; i<5; i++) {
++		for (j=0; j<3; j++) {
++			atomic_set(&cacct->sock[i][j].count, 0);
++			atomic_set(&cacct->sock[i][j].total, 0);
++		}
++	}
++}
++
++static inline void vx_info_exit_cacct(struct _vx_cacct *cacct)
++{
++	return;
++}
++
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/cvirt_proc.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/cvirt_proc.h
+@@ -0,0 +1,92 @@
++#ifndef _VX_CVIRT_PROC_H
++#define _VX_CVIRT_PROC_H
++
++#include <linux/sched.h>
++
++
++#define LOAD_INT(x) ((x) >> FSHIFT)
++#define LOAD_FRAC(x) LOAD_INT(((x) & (FIXED_1-1)) * 100)
++
++static inline int vx_info_proc_cvirt(struct _vx_cvirt *cvirt, char *buffer)
++{
++	int length = 0;
++	int a, b, c;
++
++	length += sprintf(buffer + length,
++		"BiasUptime:\t%lu.%02lu\n",
++			(unsigned long)cvirt->bias_uptime.tv_sec,
++			(cvirt->bias_uptime.tv_nsec / (NSEC_PER_SEC / 100)));
++	length += sprintf(buffer + length,
++		"SysName:\t%.*s\n"
++		"NodeName:\t%.*s\n"
++		"Release:\t%.*s\n"
++		"Version:\t%.*s\n"
++		"Machine:\t%.*s\n"
++		"DomainName:\t%.*s\n"
++		,__NEW_UTS_LEN, cvirt->utsname.sysname
++		,__NEW_UTS_LEN, cvirt->utsname.nodename
++		,__NEW_UTS_LEN, cvirt->utsname.release
++		,__NEW_UTS_LEN, cvirt->utsname.version
++		,__NEW_UTS_LEN, cvirt->utsname.machine
++		,__NEW_UTS_LEN, cvirt->utsname.domainname
++		);
++
++	a = cvirt->load[0] + (FIXED_1/200);
++	b = cvirt->load[1] + (FIXED_1/200);
++	c = cvirt->load[2] + (FIXED_1/200);
++	length += sprintf(buffer + length,
++		"nr_threads:\t%d\n"
++		"nr_running:\t%d\n"
++		"nr_unintr:\t%d\n"
++		"nr_onhold:\t%d\n"
++		"load_updates:\t%d\n"
++		"loadavg:\t%d.%02d %d.%02d %d.%02d\n"
++		"total_forks:\t%d\n"
++		,atomic_read(&cvirt->nr_threads)
++		,atomic_read(&cvirt->nr_running)
++		,atomic_read(&cvirt->nr_uninterruptible)
++		,atomic_read(&cvirt->nr_onhold)
++		,atomic_read(&cvirt->load_updates)
++		,LOAD_INT(a), LOAD_FRAC(a)
++		,LOAD_INT(b), LOAD_FRAC(b)
++		,LOAD_INT(c), LOAD_FRAC(c)
++		,atomic_read(&cvirt->total_forks)
++		);
++	return length;
++}
++
++
++static inline long vx_sock_count(struct _vx_cacct *cacct, int type, int pos)
++{
++	return atomic_read(&cacct->sock[type][pos].count);
++}
++
++
++static inline long vx_sock_total(struct _vx_cacct *cacct, int type, int pos)
++{
++	return atomic_read(&cacct->sock[type][pos].total);
++}
++
++static inline int vx_info_proc_cacct(struct _vx_cacct *cacct, char *buffer)
++{
++	int i,j, length = 0;
++	static char *type[] = { "UNSPEC", "UNIX", "INET", "INET6", "OTHER" };
++
++	for (i=0; i<5; i++) {
++		length += sprintf(buffer + length,
++			"%s:", type[i]);
++		for (j=0; j<3; j++) {
++			length += sprintf(buffer + length,
++				"\t%12lu/%-12lu"
++				,vx_sock_count(cacct, i, j)
++				,vx_sock_total(cacct, i, j)
++				);
++		}
++		buffer[length++] = '\n';
++	}
++	length += sprintf(buffer + length,
++		"forks:\t%lu\n", cacct->total_forks);
++	return length;
++}
++
++#endif	/* _VX_CVIRT_PROC_H */
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/dlimit.c
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/dlimit.c
+@@ -0,0 +1,552 @@
++/*
++ *  linux/kernel/vserver/dlimit.c
++ *
++ *  Virtual Server: Context Disk Limits
++ *
++ *  Copyright (C) 2004-2005  Herbert Pötzl
++ *
++ *  V0.01  initial version
++ *  V0.02  compat32 splitup
++ *
++ */
++
++#include <linux/config.h>
++#include <linux/fs.h>
++#include <linux/namespace.h>
++#include <linux/namei.h>
++#include <linux/statfs.h>
++#include <linux/compat.h>
++#include <linux/vserver/switch.h>
++#include <linux/vs_context.h>
++#include <linux/vs_dlimit.h>
++#include <linux/vserver/dlimit_cmd.h>
++
++#include <asm/errno.h>
++#include <asm/uaccess.h>
++
++/*	__alloc_dl_info()
++
++	* allocate an initialized dl_info struct
++	* doesn't make it visible (hash)			*/
++
++static struct dl_info *__alloc_dl_info(struct super_block *sb, xid_t xid)
++{
++	struct dl_info *new = NULL;
++
++	vxdprintk(VXD_CBIT(dlim, 5),
++		"alloc_dl_info(%p,%d)*", sb, xid);
++
++	/* would this benefit from a slab cache? */
++	new = kmalloc(sizeof(struct dl_info), GFP_KERNEL);
++	if (!new)
++		return 0;
++
++	memset (new, 0, sizeof(struct dl_info));
++	new->dl_xid = xid;
++	new->dl_sb = sb;
++	INIT_RCU_HEAD(&new->dl_rcu);
++	INIT_HLIST_NODE(&new->dl_hlist);
++	spin_lock_init(&new->dl_lock);
++	atomic_set(&new->dl_refcnt, 0);
++	atomic_set(&new->dl_usecnt, 0);
++
++	/* rest of init goes here */
++
++	vxdprintk(VXD_CBIT(dlim, 4),
++		"alloc_dl_info(%p,%d) = %p", sb, xid, new);
++	return new;
++}
++
++/*	__dealloc_dl_info()
++
++	* final disposal of dl_info				*/
++
++static void __dealloc_dl_info(struct dl_info *dli)
++{
++	vxdprintk(VXD_CBIT(dlim, 4),
++		"dealloc_dl_info(%p)", dli);
++
++	dli->dl_hlist.next = LIST_POISON1;
++	dli->dl_xid = -1;
++	dli->dl_sb = 0;
++
++	BUG_ON(atomic_read(&dli->dl_usecnt));
++	BUG_ON(atomic_read(&dli->dl_refcnt));
++
++	kfree(dli);
++}
++
++
++/*	hash table for dl_info hash */
++
++#define DL_HASH_SIZE	13
++
++struct hlist_head dl_info_hash[DL_HASH_SIZE];
++
++static spinlock_t dl_info_hash_lock = SPIN_LOCK_UNLOCKED;
++
++
++static inline unsigned int __hashval(struct super_block *sb, xid_t xid)
++{
++	return ((xid ^ (unsigned long)sb) % DL_HASH_SIZE);
++}
++
++
++
++/*	__hash_dl_info()
++
++	* add the dli to the global hash table
++	* requires the hash_lock to be held			*/
++
++static inline void __hash_dl_info(struct dl_info *dli)
++{
++	struct hlist_head *head;
++
++	vxdprintk(VXD_CBIT(dlim, 6),
++		"__hash_dl_info: %p[#%d]", dli, dli->dl_xid);
++	get_dl_info(dli);
++	head = &dl_info_hash[__hashval(dli->dl_sb, dli->dl_xid)];
++	hlist_add_head_rcu(&dli->dl_hlist, head);
++}
++
++/*	__unhash_dl_info()
++
++	* remove the dli from the global hash table
++	* requires the hash_lock to be held			*/
++
++static inline void __unhash_dl_info(struct dl_info *dli)
++{
++	vxdprintk(VXD_CBIT(dlim, 6),
++		"__unhash_dl_info: %p[#%d]", dli, dli->dl_xid);
++	hlist_del_rcu(&dli->dl_hlist);
++	put_dl_info(dli);
++}
++
++
++/*	__lookup_dl_info()
++
++	* requires the rcu_read_lock()
++	* doesn't increment the dl_refcnt			*/
++
++static inline struct dl_info *__lookup_dl_info(struct super_block *sb, xid_t xid)
++{
++	struct hlist_head *head = &dl_info_hash[__hashval(sb, xid)];
++	struct hlist_node *pos;
++	struct dl_info *dli;
++
++	hlist_for_each_entry_rcu(dli, pos, head, dl_hlist) {
++//	hlist_for_each_rcu(pos, head) {
++//		struct dl_info *dli =
++//			hlist_entry(pos, struct dl_info, dl_hlist);
++
++		if (dli->dl_xid == xid && dli->dl_sb == sb) {
++			return dli;
++		}
++	}
++	return NULL;
++}
++
++
++struct dl_info *locate_dl_info(struct super_block *sb, xid_t xid)
++{
++	struct dl_info *dli;
++
++	rcu_read_lock();
++	dli = get_dl_info(__lookup_dl_info(sb, xid));
++	vxdprintk(VXD_CBIT(dlim, 7),
++		"locate_dl_info(%p,#%d) = %p", sb, xid, dli);
++	rcu_read_unlock();
++	return dli;
++}
++
++void rcu_free_dl_info(struct rcu_head *head)
++{
++	struct dl_info *dli = container_of(head, struct dl_info, dl_rcu);
++	int usecnt, refcnt;
++
++	BUG_ON(!dli || !head);
++
++	usecnt = atomic_read(&dli->dl_usecnt);
++	BUG_ON(usecnt < 0);
++
++	refcnt = atomic_read(&dli->dl_refcnt);
++	BUG_ON(refcnt < 0);
++
++	vxdprintk(VXD_CBIT(dlim, 3),
++		"rcu_free_dl_info(%p)", dli);
++	if (!usecnt)
++		__dealloc_dl_info(dli);
++	else
++		printk("!!! rcu didn't free\n");
++}
++
++
++
++
++int do_addrem_dlimit(uint32_t id, const char __user *name,
++	uint32_t flags, int add)
++{
++	struct nameidata nd;
++	int ret;
++
++	ret = user_path_walk_link(name, &nd);
++	if (!ret) {
++		struct super_block *sb;
++		struct dl_info *dli;
++
++		ret = -EINVAL;
++		if (!nd.dentry->d_inode)
++			goto out_release;
++		if (!(sb = nd.dentry->d_inode->i_sb))
++			goto out_release;
++
++		if (add) {
++			dli = __alloc_dl_info(sb, id);
++			spin_lock(&dl_info_hash_lock);
++
++			ret = -EEXIST;
++			if (__lookup_dl_info(sb, id))
++				goto out_unlock;
++			__hash_dl_info(dli);
++			dli = NULL;
++		} else {
++			spin_lock(&dl_info_hash_lock);
++			dli = __lookup_dl_info(sb, id);
++
++			ret = -ESRCH;
++			if (!dli)
++				goto out_unlock;
++			__unhash_dl_info(dli);
++		}
++		ret = 0;
++	out_unlock:
++		spin_unlock(&dl_info_hash_lock);
++		if (add && dli)
++			__dealloc_dl_info(dli);
++	out_release:
++		path_release(&nd);
++	}
++	return ret;
++}
++
++int vc_add_dlimit(uint32_t id, void __user *data)
++{
++	struct vcmd_ctx_dlimit_base_v0 vc_data;
++
++	if (!vx_check(0, VX_ADMIN))
++		return -ENOSYS;
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	return do_addrem_dlimit(id, vc_data.name, vc_data.flags, 1);
++}
++
++int vc_rem_dlimit(uint32_t id, void __user *data)
++{
++	struct vcmd_ctx_dlimit_base_v0 vc_data;
++
++	if (!vx_check(0, VX_ADMIN))
++		return -ENOSYS;
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	return do_addrem_dlimit(id, vc_data.name, vc_data.flags, 0);
++}
++
++#ifdef	CONFIG_COMPAT
++
++int vc_add_dlimit_x32(uint32_t id, void __user *data)
++{
++	struct vcmd_ctx_dlimit_base_v0_x32 vc_data;
++
++	if (!vx_check(0, VX_ADMIN))
++		return -ENOSYS;
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	return do_addrem_dlimit(id,
++		compat_ptr(vc_data.name_ptr), vc_data.flags, 1);
++}
++
++int vc_rem_dlimit_x32(uint32_t id, void __user *data)
++{
++	struct vcmd_ctx_dlimit_base_v0_x32 vc_data;
++
++	if (!vx_check(0, VX_ADMIN))
++		return -ENOSYS;
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	return do_addrem_dlimit(id,
++		compat_ptr(vc_data.name_ptr), vc_data.flags, 0);
++}
++
++#endif	/* CONFIG_COMPAT */
++
++
++static inline
++int do_set_dlimit(uint32_t id, const char __user *name,
++	uint32_t space_used, uint32_t space_total,
++	uint32_t inodes_used, uint32_t inodes_total,
++	uint32_t reserved, uint32_t flags)
++{
++	struct nameidata nd;
++	int ret;
++
++	ret = user_path_walk_link(name, &nd);
++	if (!ret) {
++		struct super_block *sb;
++		struct dl_info *dli;
++
++		ret = -EINVAL;
++		if (!nd.dentry->d_inode)
++			goto out_release;
++		if (!(sb = nd.dentry->d_inode->i_sb))
++			goto out_release;
++		if ((reserved != (uint32_t)CDLIM_KEEP &&
++			reserved > 100) ||
++			(inodes_used != (uint32_t)CDLIM_KEEP &&
++			inodes_used > inodes_total) ||
++			(space_used != (uint32_t)CDLIM_KEEP &&
++			space_used > space_total))
++			goto out_release;
++
++		ret = -ESRCH;
++		dli = locate_dl_info(sb, id);
++		if (!dli)
++			goto out_release;
++
++		spin_lock(&dli->dl_lock);
++
++		if (inodes_used != (uint32_t)CDLIM_KEEP)
++			dli->dl_inodes_used = inodes_used;
++		if (inodes_total != (uint32_t)CDLIM_KEEP)
++			dli->dl_inodes_total = inodes_total;
++		if (space_used != (uint32_t)CDLIM_KEEP) {
++			dli->dl_space_used = space_used;
++			dli->dl_space_used <<= 10;
++		}
++		if (space_total == (uint32_t)CDLIM_INFINITY)
++			dli->dl_space_total = (uint64_t)CDLIM_INFINITY;
++		else if (space_total != (uint32_t)CDLIM_KEEP) {
++			dli->dl_space_total = space_total;
++			dli->dl_space_total <<= 10;
++		}
++		if (reserved != (uint32_t)CDLIM_KEEP)
++			dli->dl_nrlmult = (1 << 10) * (100 - reserved) / 100;
++
++		spin_unlock(&dli->dl_lock);
++
++		put_dl_info(dli);
++		ret = 0;
++
++	out_release:
++		path_release(&nd);
++	}
++	return ret;
++}
++
++int vc_set_dlimit(uint32_t id, void __user *data)
++{
++	struct vcmd_ctx_dlimit_v0 vc_data;
++
++	if (!vx_check(0, VX_ADMIN))
++		return -ENOSYS;
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	return do_set_dlimit(id, vc_data.name,
++		vc_data.space_used, vc_data.space_total,
++		vc_data.inodes_used, vc_data.inodes_total,
++		vc_data.reserved, vc_data.flags);
++}
++
++#ifdef	CONFIG_COMPAT
++
++int vc_set_dlimit_x32(uint32_t id, void __user *data)
++{
++	struct vcmd_ctx_dlimit_v0_x32 vc_data;
++
++	if (!vx_check(0, VX_ADMIN))
++		return -ENOSYS;
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	return do_set_dlimit(id, compat_ptr(vc_data.name_ptr),
++		vc_data.space_used, vc_data.space_total,
++		vc_data.inodes_used, vc_data.inodes_total,
++		vc_data.reserved, vc_data.flags);
++}
++
++#endif	/* CONFIG_COMPAT */
++
++
++static inline
++int do_get_dlimit(uint32_t id, const char __user *name,
++	uint32_t *space_used, uint32_t *space_total,
++	uint32_t *inodes_used, uint32_t *inodes_total,
++	uint32_t *reserved, uint32_t *flags)
++{
++	struct nameidata nd;
++	int ret;
++
++	ret = user_path_walk_link(name, &nd);
++	if (!ret) {
++		struct super_block *sb;
++		struct dl_info *dli;
++
++		ret = -EINVAL;
++		if (!nd.dentry->d_inode)
++			goto out_release;
++		if (!(sb = nd.dentry->d_inode->i_sb))
++			goto out_release;
++
++		ret = -ESRCH;
++		dli = locate_dl_info(sb, id);
++		if (!dli)
++			goto out_release;
++
++		spin_lock(&dli->dl_lock);
++		*inodes_used = dli->dl_inodes_used;
++		*inodes_total = dli->dl_inodes_total;
++		*space_used = dli->dl_space_used >> 10;
++		if (dli->dl_space_total == (uint64_t)CDLIM_INFINITY)
++			*space_total = (uint32_t)CDLIM_INFINITY;
++		else
++			*space_total = dli->dl_space_total >> 10;
++
++		*reserved = 100 - ((dli->dl_nrlmult * 100 + 512) >> 10);
++		spin_unlock(&dli->dl_lock);
++
++		put_dl_info(dli);
++		ret = -EFAULT;
++
++		ret = 0;
++	out_release:
++		path_release(&nd);
++	}
++	return ret;
++}
++
++
++int vc_get_dlimit(uint32_t id, void __user *data)
++{
++	struct vcmd_ctx_dlimit_v0 vc_data;
++	int ret;
++
++	if (!vx_check(0, VX_ADMIN))
++		return -ENOSYS;
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	ret = do_get_dlimit(id, vc_data.name,
++		&vc_data.space_used, &vc_data.space_total,
++		&vc_data.inodes_used, &vc_data.inodes_total,
++		&vc_data.reserved, &vc_data.flags);
++	if (ret)
++		return ret;
++
++	if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++		return -EFAULT;
++	return 0;
++}
++
++#ifdef	CONFIG_COMPAT
++
++int vc_get_dlimit_x32(uint32_t id, void __user *data)
++{
++	struct vcmd_ctx_dlimit_v0_x32 vc_data;
++	int ret;
++
++	if (!vx_check(0, VX_ADMIN))
++		return -ENOSYS;
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	ret = do_get_dlimit(id, compat_ptr(vc_data.name_ptr),
++		&vc_data.space_used, &vc_data.space_total,
++		&vc_data.inodes_used, &vc_data.inodes_total,
++		&vc_data.reserved, &vc_data.flags);
++	if (ret)
++		return ret;
++
++	if (copy_to_user(data, &vc_data, sizeof(vc_data)))
++		return -EFAULT;
++	return 0;
++}
++
++#endif	/* CONFIG_COMPAT */
++
++
++void vx_vsi_statfs(struct super_block *sb, struct kstatfs *buf)
++{
++	struct dl_info *dli;
++	__u64 blimit, bfree, bavail;
++	__u32 ifree;
++
++	dli = locate_dl_info(sb, vx_current_xid());
++	if (!dli)
++		return;
++
++	spin_lock(&dli->dl_lock);
++	if (dli->dl_inodes_total == (uint32_t)CDLIM_INFINITY)
++		goto no_ilim;
++
++	/* reduce max inodes available to limit */
++	if (buf->f_files > dli->dl_inodes_total)
++		buf->f_files = dli->dl_inodes_total;
++
++	/* inode hack for reiserfs */
++	if ((buf->f_files == 0) && (dli->dl_inodes_total > 0)) {
++		buf->f_files = dli->dl_inodes_total;
++		buf->f_ffree = dli->dl_inodes_total;
++	}
++
++	ifree = dli->dl_inodes_total - dli->dl_inodes_used;
++	/* reduce free inodes to min */
++	if (ifree < buf->f_ffree)
++		buf->f_ffree = ifree;
++
++no_ilim:
++	if (dli->dl_space_total == (uint64_t)CDLIM_INFINITY)
++		goto no_blim;
++
++	blimit = dli->dl_space_total >> sb->s_blocksize_bits;
++
++	if (dli->dl_space_total < dli->dl_space_used)
++		bfree = 0;
++	else
++		bfree = (dli->dl_space_total - dli->dl_space_used)
++			>> sb->s_blocksize_bits;
++
++	bavail = ((dli->dl_space_total >> 10) * dli->dl_nrlmult);
++	if (bavail < dli->dl_space_used)
++		bavail = 0;
++	else
++		bavail = (bavail - dli->dl_space_used)
++			>> sb->s_blocksize_bits;
++
++	/* reduce max space available to limit */
++	if (buf->f_blocks > blimit)
++		buf->f_blocks = blimit;
++
++	/* reduce free space to min */
++	if (bfree < buf->f_bfree)
++		buf->f_bfree = bfree;
++
++	/* reduce avail space to min */
++	if (bavail < buf->f_bavail)
++		buf->f_bavail = bavail;
++
++no_blim:
++	spin_unlock(&dli->dl_lock);
++	put_dl_info(dli);
++
++	return;
++}
++
++#include <linux/module.h>
++
++EXPORT_SYMBOL_GPL(locate_dl_info);
++EXPORT_SYMBOL_GPL(rcu_free_dl_info);
++
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/helper.c
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/helper.c
+@@ -0,0 +1,174 @@
++/*
++ *  linux/kernel/vserver/helper.c
++ *
++ *  Virtual Context Support
++ *
++ *  Copyright (C) 2004-2005  Herbert Pötzl
++ *
++ *  V0.01  basic helper
++ *
++ */
++
++#include <linux/config.h>
++#include <linux/errno.h>
++#include <linux/kmod.h>
++#include <linux/sched.h>
++#include <linux/reboot.h>
++#include <linux/vs_context.h>
++#include <linux/vs_network.h>
++
++#include <asm/uaccess.h>
++#include <asm/unistd.h>
++
++
++char vshelper_path[255] = "/sbin/vshelper";
++
++
++int do_vshelper(char *name, char *argv[], char *envp[], int sync)
++{
++	int ret;
++
++	if ((ret = call_usermodehelper(name, argv, envp, sync))) {
++		printk(	KERN_WARNING
++			"%s: (%s %s) returned %s with %d\n",
++			name, argv[1], argv[2],
++			sync?"sync":"async", ret);
++	}
++	vxdprintk(VXD_CBIT(switch, 4),
++		"%s: (%s %s) returned %s with %d",
++		name, argv[1], argv[2], sync?"sync":"async", ret);
++	return ret;
++}
++
++/*
++ *      vshelper path is set via /proc/sys
++ *      invoked by vserver sys_reboot(), with
++ *      the following arguments
++ *
++ *      argv [0] = vshelper_path;
++ *      argv [1] = action: "restart", "halt", "poweroff", ...
++ *      argv [2] = context identifier
++ *
++ *      envp [*] = type-specific parameters
++ */
++
++long vs_reboot(unsigned int cmd, void * arg)
++{
++	char id_buf[8], cmd_buf[16];
++	char uid_buf[16], pid_buf[16];
++	int ret;
++
++	char *argv[] = {vshelper_path, NULL, id_buf, 0};
++	char *envp[] = {"HOME=/", "TERM=linux",
++			"PATH=/sbin:/usr/sbin:/bin:/usr/bin",
++			uid_buf, pid_buf, cmd_buf, 0};
++
++	snprintf(id_buf, sizeof(id_buf)-1, "%d", vx_current_xid());
++
++	snprintf(cmd_buf, sizeof(cmd_buf)-1, "VS_CMD=%08x", cmd);
++	snprintf(uid_buf, sizeof(uid_buf)-1, "VS_UID=%d", current->uid);
++	snprintf(pid_buf, sizeof(pid_buf)-1, "VS_PID=%d", current->pid);
++
++	switch (cmd) {
++	case LINUX_REBOOT_CMD_RESTART:
++		argv[1] = "restart";
++		break;
++
++	case LINUX_REBOOT_CMD_HALT:
++		argv[1] = "halt";
++		break;
++
++	case LINUX_REBOOT_CMD_POWER_OFF:
++		argv[1] = "poweroff";
++		break;
++
++	case LINUX_REBOOT_CMD_SW_SUSPEND:
++		argv[1] = "swsusp";
++		break;
++
++	default:
++		return 0;
++	}
++
++#ifndef CONFIG_VSERVER_LEGACY
++	ret = do_vshelper(vshelper_path, argv, envp, 1);
++#else
++	ret = do_vshelper(vshelper_path, argv, envp, 0);
++#endif
++	return (ret) ? -EPERM : 0;
++}
++
++
++/*
++ *      argv [0] = vshelper_path;
++ *      argv [1] = action: "startup", "shutdown"
++ *      argv [2] = context identifier
++ *
++ *      envp [*] = type-specific parameters
++ */
++
++long vs_state_change(struct vx_info *vxi, unsigned int cmd)
++{
++	char id_buf[8], cmd_buf[16];
++	char *argv[] = {vshelper_path, NULL, id_buf, 0};
++	char *envp[] = {"HOME=/", "TERM=linux",
++			"PATH=/sbin:/usr/sbin:/bin:/usr/bin", cmd_buf, 0};
++
++	if (!vx_info_flags(vxi, VXF_STATE_HELPER, 0))
++		return 0;
++
++	snprintf(id_buf, sizeof(id_buf)-1, "%d", vxi->vx_id);
++	snprintf(cmd_buf, sizeof(cmd_buf)-1, "VS_CMD=%08x", cmd);
++
++	switch (cmd) {
++	case VSC_STARTUP:
++		argv[1] = "startup";
++		break;
++	case VSC_SHUTDOWN:
++		argv[1] = "shutdown";
++		break;
++	default:
++		return 0;
++	}
++
++	do_vshelper(vshelper_path, argv, envp, 1);
++	return 0;
++}
++
++
++/*
++ *      argv [0] = vshelper_path;
++ *      argv [1] = action: "netup", "netdown"
++ *      argv [2] = context identifier
++ *
++ *      envp [*] = type-specific parameters
++ */
++
++long vs_net_change(struct nx_info *nxi, unsigned int cmd)
++{
++	char id_buf[8], cmd_buf[16];
++	char *argv[] = {vshelper_path, NULL, id_buf, 0};
++	char *envp[] = {"HOME=/", "TERM=linux",
++			"PATH=/sbin:/usr/sbin:/bin:/usr/bin", cmd_buf, 0};
++
++	if (!nx_info_flags(nxi, NXF_STATE_HELPER, 0))
++		return 0;
++
++	snprintf(id_buf, sizeof(id_buf)-1, "%d", nxi->nx_id);
++	snprintf(cmd_buf, sizeof(cmd_buf)-1, "VS_CMD=%08x", cmd);
++
++	switch (cmd) {
++	case VSC_NETUP:
++		argv[1] = "netup";
++		break;
++	case VSC_NETDOWN:
++		argv[1] = "netdown";
++		break;
++	default:
++		return 0;
++	}
++
++	do_vshelper(vshelper_path, argv, envp, 1);
++	return 0;
++}
++
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/history.c
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/history.c
+@@ -0,0 +1,184 @@
++/*
++ *  kernel/vserver/history.c
++ *
++ *  Virtual Context History Backtrace
++ *
++ *  Copyright (C) 2004-2005  Herbert Pötzl
++ *
++ *  V0.01  basic structure
++ *  V0.02  hash/unhash and trace
++ *  V0.03  preemption fixes
++ *
++ */
++
++#include <linux/config.h>
++#include <linux/errno.h>
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/ctype.h>
++
++#include <asm/uaccess.h>
++#include <asm/atomic.h>
++#include <asm/unistd.h>
++
++#include <linux/vserver/debug.h>
++
++
++#ifdef	CONFIG_VSERVER_HISTORY
++#define VXH_SIZE	CONFIG_VSERVER_HISTORY_SIZE
++#else
++#define VXH_SIZE	64
++#endif
++
++struct _vx_history {
++	unsigned int counter;
++
++	struct _vx_hist_entry entry[VXH_SIZE+1];
++};
++
++
++DEFINE_PER_CPU(struct _vx_history, vx_history_buffer);
++
++unsigned volatile int vxh_active = 1;
++
++static atomic_t sequence = ATOMIC_INIT(0);
++
++
++/*	vxh_advance()
++
++	* requires disabled preemption				*/
++
++struct _vx_hist_entry *vxh_advance(void *loc)
++{
++	unsigned int cpu = smp_processor_id();
++	struct _vx_history *hist = &per_cpu(vx_history_buffer, cpu);
++	struct _vx_hist_entry *entry;
++	unsigned int index;
++
++	index = vxh_active ? (hist->counter++ % VXH_SIZE) : VXH_SIZE;
++	entry = &hist->entry[index];
++
++	entry->seq = atomic_inc_return(&sequence);
++	entry->loc = loc;
++	return entry;
++}
++
++
++#define VXH_LOC_FMTS	"(#%04x,*%d):%p"
++
++#define VXH_LOC_ARGS(e)	(e)->seq, cpu, (e)->loc
++
++
++#define VXH_VXI_FMTS	"%p[#%d,%d.%d]"
++
++#define VXH_VXI_ARGS(e)	(e)->vxi.ptr,			\
++			(e)->vxi.ptr?(e)->vxi.xid:0,	\
++			(e)->vxi.ptr?(e)->vxi.usecnt:0,	\
++			(e)->vxi.ptr?(e)->vxi.tasks:0
++
++void	vxh_dump_entry(struct _vx_hist_entry *e, unsigned cpu)
++{
++	switch (e->type) {
++	case VXH_THROW_OOPS:
++		printk( VXH_LOC_FMTS " oops \n", VXH_LOC_ARGS(e));
++		break;
++
++	case VXH_GET_VX_INFO:
++	case VXH_PUT_VX_INFO:
++		printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS "\n",
++			VXH_LOC_ARGS(e),
++			(e->type==VXH_GET_VX_INFO)?"get":"put",
++			VXH_VXI_ARGS(e));
++		break;
++
++	case VXH_INIT_VX_INFO:
++	case VXH_SET_VX_INFO:
++	case VXH_CLR_VX_INFO:
++		printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS " @%p\n",
++			VXH_LOC_ARGS(e),
++			(e->type==VXH_INIT_VX_INFO)?"init":
++			((e->type==VXH_SET_VX_INFO)?"set":"clr"),
++			VXH_VXI_ARGS(e), e->sc.data);
++		break;
++
++	case VXH_CLAIM_VX_INFO:
++	case VXH_RELEASE_VX_INFO:
++		printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS " @%p\n",
++			VXH_LOC_ARGS(e),
++			(e->type==VXH_CLAIM_VX_INFO)?"claim":"release",
++			VXH_VXI_ARGS(e), e->sc.data);
++		break;
++
++	case VXH_ALLOC_VX_INFO:
++	case VXH_DEALLOC_VX_INFO:
++		printk( VXH_LOC_FMTS " %s_vx_info " VXH_VXI_FMTS "\n",
++			VXH_LOC_ARGS(e),
++			(e->type==VXH_ALLOC_VX_INFO)?"alloc":"dealloc",
++			VXH_VXI_ARGS(e));
++		break;
++
++	case VXH_HASH_VX_INFO:
++	case VXH_UNHASH_VX_INFO:
++		printk( VXH_LOC_FMTS " __%s_vx_info " VXH_VXI_FMTS "\n",
++			VXH_LOC_ARGS(e),
++			(e->type==VXH_HASH_VX_INFO)?"hash":"unhash",
++			VXH_VXI_ARGS(e));
++		break;
++
++	case VXH_LOC_VX_INFO:
++	case VXH_LOOKUP_VX_INFO:
++	case VXH_CREATE_VX_INFO:
++		printk( VXH_LOC_FMTS " __%s_vx_info [#%d] -> " VXH_VXI_FMTS "\n",
++			VXH_LOC_ARGS(e),
++			(e->type==VXH_CREATE_VX_INFO)?"create":
++			((e->type==VXH_LOC_VX_INFO)?"loc":"lookup"),
++			e->ll.arg, VXH_VXI_ARGS(e));
++		break;
++	}
++}
++
++static void __vxh_dump_history(void)
++{
++	unsigned int i,j;
++
++	printk("History:\tSEQ: %8x\tNR_CPUS: %d\n",
++		atomic_read(&sequence), NR_CPUS);
++
++	for (i=0; i < VXH_SIZE; i++) {
++		for (j=0; j < NR_CPUS; j++) {
++			struct _vx_history *hist =
++				&per_cpu(vx_history_buffer, j);
++			unsigned int index = (hist->counter-i) % VXH_SIZE;
++			struct _vx_hist_entry *entry = &hist->entry[index];
++
++			vxh_dump_entry(entry, j);
++		}
++	}
++}
++
++void	vxh_dump_history(void)
++{
++	vxh_active = 0;
++#ifdef CONFIG_SMP
++	local_irq_enable();
++	smp_send_stop();
++	local_irq_disable();
++#endif
++	__vxh_dump_history();
++}
++
++
++/* vserver syscall commands below here */
++
++
++int	vc_dump_history(uint32_t id)
++{
++	vxh_active = 0;
++	__vxh_dump_history();
++	vxh_active = 1;
++
++	return 0;
++}
++
++EXPORT_SYMBOL_GPL(vxh_advance);
++
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/init.c
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/init.c
+@@ -0,0 +1,44 @@
++/*
++ *  linux/kernel/init.c
++ *
++ *  Virtual Server Init
++ *
++ *  Copyright (C) 2004-2005  Herbert Pötzl
++ *
++ *  V0.01  basic structure
++ *
++ */
++
++#include <linux/config.h>
++#include <linux/errno.h>
++#include <linux/init.h>
++#include <linux/module.h>
++
++int	vserver_register_sysctl(void);
++void	vserver_unregister_sysctl(void);
++
++
++static int __init init_vserver(void)
++{
++	int ret = 0;
++
++#ifdef	CONFIG_VSERVER_DEBUG
++	vserver_register_sysctl();
++#endif
++	return ret;
++}
++
++
++static void __exit exit_vserver(void)
++{
++
++#ifdef	CONFIG_VSERVER_DEBUG
++	vserver_unregister_sysctl();
++#endif
++	return;
++}
++
++
++module_init(init_vserver);
++module_exit(exit_vserver);
++
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/inode.c
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/inode.c
+@@ -0,0 +1,368 @@
++/*
++ *  linux/kernel/vserver/inode.c
++ *
++ *  Virtual Server: File System Support
++ *
++ *  Copyright (C) 2004-2005  Herbert Pötzl
++ *
++ *  V0.01  separated from vcontext V0.05
++ *
++ */
++
++#include <linux/sched.h>
++#include <linux/vs_context.h>
++#include <linux/proc_fs.h>
++#include <linux/devpts_fs.h>
++#include <linux/namei.h>
++#include <linux/mount.h>
++#include <linux/parser.h>
++#include <linux/compat.h>
++#include <linux/vserver/inode.h>
++#include <linux/vserver/inode_cmd.h>
++#include <linux/vserver/xid.h>
++
++#include <asm/errno.h>
++#include <asm/uaccess.h>
++
++
++static int __vc_get_iattr(struct inode *in, uint32_t *xid, uint32_t *flags, uint32_t *mask)
++{
++	struct proc_dir_entry *entry;
++
++	if (!in || !in->i_sb)
++		return -ESRCH;
++
++	*flags = IATTR_XID
++		| (IS_BARRIER(in) ? IATTR_BARRIER : 0)
++		| (IS_IUNLINK(in) ? IATTR_IUNLINK : 0)
++		| (IS_IMMUTABLE(in) ? IATTR_IMMUTABLE : 0);
++	*mask = IATTR_IUNLINK | IATTR_IMMUTABLE;
++
++	if (S_ISDIR(in->i_mode))
++		*mask |= IATTR_BARRIER;
++
++	if (IS_TAGXID(in)) {
++		*xid = in->i_xid;
++		*mask |= IATTR_XID;
++	}
++
++	switch (in->i_sb->s_magic) {
++	case PROC_SUPER_MAGIC:
++		entry = PROC_I(in)->pde;
++
++		/* check for specific inodes? */
++		if (entry)
++			*mask |= IATTR_FLAGS;
++		if (entry)
++			*flags |= (entry->vx_flags & IATTR_FLAGS);
++		else
++			*flags |= (PROC_I(in)->vx_flags & IATTR_FLAGS);
++		break;
++
++	case DEVPTS_SUPER_MAGIC:
++		*xid = in->i_xid;
++		*mask |= IATTR_XID;
++		break;
++
++	default:
++		break;
++	}
++	return 0;
++}
++
++int vc_get_iattr(uint32_t id, void __user *data)
++{
++	struct nameidata nd;
++	struct vcmd_ctx_iattr_v1 vc_data = { .xid = -1 };
++	int ret;
++
++	if (!vx_check(0, VX_ADMIN))
++		return -ENOSYS;
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	ret = user_path_walk_link(vc_data.name, &nd);
++	if (!ret) {
++		ret = __vc_get_iattr(nd.dentry->d_inode,
++			&vc_data.xid, &vc_data.flags, &vc_data.mask);
++		path_release(&nd);
++	}
++	if (ret)
++		return ret;
++
++	if (copy_to_user (data, &vc_data, sizeof(vc_data)))
++		ret = -EFAULT;
++	return ret;
++}
++
++#ifdef	CONFIG_COMPAT
++
++int vc_get_iattr_x32(uint32_t id, void __user *data)
++{
++	struct nameidata nd;
++	struct vcmd_ctx_iattr_v1_x32 vc_data = { .xid = -1 };
++	int ret;
++
++	if (!vx_check(0, VX_ADMIN))
++		return -ENOSYS;
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	ret = user_path_walk_link(compat_ptr(vc_data.name_ptr), &nd);
++	if (!ret) {
++		ret = __vc_get_iattr(nd.dentry->d_inode,
++			&vc_data.xid, &vc_data.flags, &vc_data.mask);
++		path_release(&nd);
++	}
++	if (ret)
++		return ret;
++
++	if (copy_to_user (data, &vc_data, sizeof(vc_data)))
++		ret = -EFAULT;
++	return ret;
++}
++
++#endif	/* CONFIG_COMPAT */
++
++
++static int __vc_set_iattr(struct dentry *de, uint32_t *xid, uint32_t *flags, uint32_t *mask)
++{
++	struct inode *in = de->d_inode;
++	int error = 0, is_proc = 0, has_xid = 0;
++	struct iattr attr = { 0 };
++
++	if (!in || !in->i_sb)
++		return -ESRCH;
++
++	is_proc = (in->i_sb->s_magic == PROC_SUPER_MAGIC);
++	if ((*mask & IATTR_FLAGS) && !is_proc)
++		return -EINVAL;
++
++	has_xid = IS_TAGXID(in) ||
++		(in->i_sb->s_magic == DEVPTS_SUPER_MAGIC);
++	if ((*mask & IATTR_XID) && !has_xid)
++		return -EINVAL;
++
++	down(&in->i_sem);
++	if (*mask & IATTR_XID) {
++		attr.ia_xid = *xid;
++		attr.ia_valid |= ATTR_XID;
++	}
++
++	if (*mask & IATTR_FLAGS) {
++		struct proc_dir_entry *entry = PROC_I(in)->pde;
++		unsigned int iflags = PROC_I(in)->vx_flags;
++
++		iflags = (iflags & ~(*mask & IATTR_FLAGS))
++			| (*flags & IATTR_FLAGS);
++		PROC_I(in)->vx_flags = iflags;
++		if (entry)
++			entry->vx_flags = iflags;
++	}
++
++	if (*mask & (IATTR_BARRIER | IATTR_IUNLINK | IATTR_IMMUTABLE)) {
++		if (*mask & IATTR_IMMUTABLE) {
++			if (*flags & IATTR_IMMUTABLE)
++				in->i_flags |= S_IMMUTABLE;
++			else
++				in->i_flags &= ~S_IMMUTABLE;
++		}
++		if (*mask & IATTR_IUNLINK) {
++			if (*flags & IATTR_IUNLINK)
++				in->i_flags |= S_IUNLINK;
++			else
++				in->i_flags &= ~S_IUNLINK;
++		}
++		if (S_ISDIR(in->i_mode) && (*mask & IATTR_BARRIER)) {
++			if (*flags & IATTR_BARRIER)
++				in->i_flags |= S_BARRIER;
++			else
++				in->i_flags &= ~S_BARRIER;
++		}
++		if (in->i_op && in->i_op->sync_flags) {
++			error = in->i_op->sync_flags(in);
++			if (error)
++				goto out;
++		}
++	}
++
++	if (attr.ia_valid) {
++		if (in->i_op && in->i_op->setattr)
++			error = in->i_op->setattr(de, &attr);
++		else {
++			error = inode_change_ok(in, &attr);
++			if (!error)
++				error = inode_setattr(in, &attr);
++		}
++	}
++
++out:
++	up(&in->i_sem);
++	return error;
++}
++
++int vc_set_iattr(uint32_t id, void __user *data)
++{
++	struct nameidata nd;
++	struct vcmd_ctx_iattr_v1 vc_data;
++	int ret;
++
++	if (!capable(CAP_SYS_ADMIN) || !capable(CAP_LINUX_IMMUTABLE))
++		return -EPERM;
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	ret = user_path_walk_link(vc_data.name, &nd);
++	if (!ret) {
++		ret = __vc_set_iattr(nd.dentry,
++			&vc_data.xid, &vc_data.flags, &vc_data.mask);
++		path_release(&nd);
++	}
++
++	if (copy_to_user (data, &vc_data, sizeof(vc_data)))
++		ret = -EFAULT;
++	return ret;
++}
++
++#ifdef	CONFIG_COMPAT
++
++int vc_set_iattr_x32(uint32_t id, void __user *data)
++{
++	struct nameidata nd;
++	struct vcmd_ctx_iattr_v1_x32 vc_data;
++	int ret;
++
++	if (!capable(CAP_SYS_ADMIN) || !capable(CAP_LINUX_IMMUTABLE))
++		return -EPERM;
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	ret = user_path_walk_link(compat_ptr(vc_data.name_ptr), &nd);
++	if (!ret) {
++		ret = __vc_set_iattr(nd.dentry,
++			&vc_data.xid, &vc_data.flags, &vc_data.mask);
++		path_release(&nd);
++	}
++
++	if (copy_to_user (data, &vc_data, sizeof(vc_data)))
++		ret = -EFAULT;
++	return ret;
++}
++
++#endif	/* CONFIG_COMPAT */
++
++#ifdef	CONFIG_VSERVER_LEGACY
++
++#define PROC_DYNAMIC_FIRST 0xF0000000UL
++
++int vx_proc_ioctl(struct inode * inode, struct file * filp,
++	unsigned int cmd, unsigned long arg)
++{
++	struct proc_dir_entry *entry;
++	int error = 0;
++	int flags;
++
++	if (inode->i_ino < PROC_DYNAMIC_FIRST)
++		return -ENOTTY;
++
++	entry = PROC_I(inode)->pde;
++	if (!entry)
++		return -ENOTTY;
++
++	switch(cmd) {
++	case FIOC_GETXFLG: {
++		/* fixme: if stealth, return -ENOTTY */
++		error = -EPERM;
++		flags = entry->vx_flags;
++		if (capable(CAP_CONTEXT))
++			error = put_user(flags, (int *) arg);
++		break;
++	}
++	case FIOC_SETXFLG: {
++		/* fixme: if stealth, return -ENOTTY */
++		error = -EPERM;
++		if (!capable(CAP_CONTEXT))
++			break;
++		error = -EROFS;
++		if (IS_RDONLY(inode))
++			break;
++		error = -EFAULT;
++		if (get_user(flags, (int *) arg))
++			break;
++		error = 0;
++		entry->vx_flags = flags;
++		break;
++	}
++	default:
++		return -ENOTTY;
++	}
++	return error;
++}
++#endif
++
++
++int vx_parse_xid(char *string, xid_t *xid, int remove)
++{
++	static match_table_t tokens = {
++		{1, "xid=%u"},
++		{0, NULL}
++	};
++	substring_t args[MAX_OPT_ARGS];
++	int token, option = 0;
++
++	if (!string)
++		return 0;
++
++	token = match_token(string, tokens, args);
++	if (token && xid && !match_int(args, &option))
++		*xid = option;
++
++	vxdprintk(VXD_CBIT(xid, 7),
++		"vx_parse_xid(»%s«): %d:#%d",
++		string, token, option);
++
++	if (token && remove) {
++		char *p = strstr(string, "xid=");
++		char *q = p;
++
++		if (p) {
++			while (*q != '\0' && *q != ',')
++				q++;
++			while (*q)
++				*p++ = *q++;
++			while (*p)
++				*p++ = '\0';
++		}
++	}
++	return token;
++}
++
++void vx_propagate_xid(struct nameidata *nd, struct inode *inode)
++{
++	xid_t new_xid = 0;
++	struct vfsmount *mnt;
++	int propagate;
++
++	if (!nd)
++		return;
++	mnt = nd->mnt;
++	if (!mnt)
++		return;
++
++	propagate = (mnt->mnt_flags & MNT_XID);
++	if (propagate)
++		new_xid = mnt->mnt_xid;
++
++	vxdprintk(VXD_CBIT(xid, 7),
++		"vx_propagate_xid(%p[#%lu.%d]): %d,%d",
++		inode, inode->i_ino, inode->i_xid,
++		new_xid, (propagate)?1:0);
++
++	if (propagate)
++		inode->i_xid = new_xid;
++}
++
++#include <linux/module.h>
++
++EXPORT_SYMBOL_GPL(vx_propagate_xid);
++
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/legacy.c
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/legacy.c
+@@ -0,0 +1,109 @@
++/*
++ *  linux/kernel/vserver/legacy.c
++ *
++ *  Virtual Server: Legacy Funtions
++ *
++ *  Copyright (C) 2001-2003  Jacques Gelinas
++ *  Copyright (C) 2003-2005  Herbert Pötzl
++ *
++ *  V0.01  broken out from vcontext.c V0.05
++ *
++ */
++
++#include <linux/config.h>
++#include <linux/sched.h>
++#include <linux/vs_context.h>
++#include <linux/vs_network.h>
++#include <linux/vserver/legacy.h>
++#include <linux/vserver/namespace.h>
++#include <linux/namespace.h>
++
++#include <asm/errno.h>
++#include <asm/uaccess.h>
++
++
++
++static int vx_set_initpid(struct vx_info *vxi, int pid)
++{
++	if (vxi->vx_initpid)
++		return -EPERM;
++
++	vxi->vx_initpid = pid;
++	return 0;
++}
++
++int vc_new_s_context(uint32_t ctx, void __user *data)
++{
++	int ret = -ENOMEM;
++	struct vcmd_new_s_context_v1 vc_data;
++	struct vx_info *new_vxi;
++
++	if (copy_from_user(&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	/* legacy hack, will be removed soon */
++	if (ctx == -2) {
++		/* assign flags and initpid */
++		if (!current->vx_info)
++			return -EINVAL;
++		ret = 0;
++		if (vc_data.flags & VX_INFO_INIT)
++			ret = vx_set_initpid(current->vx_info, current->tgid);
++		if (ret == 0) {
++			/* We keep the same vx_id, but lower the capabilities */
++			current->vx_info->vx_bcaps &= (~vc_data.remove_cap);
++			ret = vx_current_xid();
++			current->vx_info->vx_flags |= vc_data.flags;
++		}
++		return ret;
++	}
++
++	if (!vx_check(0, VX_ADMIN) || !capable(CAP_SYS_ADMIN)
++		/* might make sense in the future, or not ... */
++		|| vx_flags(VX_INFO_LOCK, 0))
++		return -EPERM;
++
++	/* ugly hack for Spectator */
++	if (ctx == 1) {
++		current->xid = 1;
++		return 0;
++	}
++
++	if (((ctx > MAX_S_CONTEXT) && (ctx != VX_DYNAMIC_ID)) ||
++		(ctx == 0))
++		return -EINVAL;
++
++	if ((ctx == VX_DYNAMIC_ID) || (ctx < MIN_D_CONTEXT))
++		new_vxi = locate_or_create_vx_info(ctx);
++	else
++		new_vxi = locate_vx_info(ctx);
++
++	if (!new_vxi)
++		return -EINVAL;
++
++	ret = -EPERM;
++	if (!vx_info_flags(new_vxi, VXF_STATE_SETUP, 0) &&
++		vx_info_flags(new_vxi, VX_INFO_PRIVATE, 0))
++		goto out_put;
++
++	new_vxi->vx_flags &= ~(VXF_STATE_SETUP|VXF_STATE_INIT);
++
++	ret = vx_migrate_task(current, new_vxi);
++	if (ret == 0) {
++		current->vx_info->vx_bcaps &= (~vc_data.remove_cap);
++		new_vxi->vx_flags |= vc_data.flags;
++		if (vc_data.flags & VX_INFO_INIT)
++			vx_set_initpid(new_vxi, current->tgid);
++		if (vc_data.flags & VX_INFO_NAMESPACE)
++			vx_set_namespace(new_vxi,
++				current->namespace, current->fs);
++		if (vc_data.flags & VX_INFO_NPROC)
++			new_vxi->limit.rlim[RLIMIT_NPROC] =
++				current->signal->rlim[RLIMIT_NPROC].rlim_max;
++		ret = new_vxi->vx_id;
++	}
++out_put:
++	put_vx_info(new_vxi);
++	return ret;
++}
++
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/legacynet.c
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/legacynet.c
+@@ -0,0 +1,86 @@
++
++/*
++ *  linux/kernel/vserver/legacynet.c
++ *
++ *  Virtual Server: Legacy Network Funtions
++ *
++ *  Copyright (C) 2001-2003  Jacques Gelinas
++ *  Copyright (C) 2003-2005  Herbert Pötzl
++ *
++ *  V0.01  broken out from legacy.c
++ *
++ */
++
++#include <linux/config.h>
++#include <linux/sched.h>
++#include <linux/vs_context.h>
++#include <linux/vs_network.h>
++#include <linux/vserver/legacy.h>
++// #include <linux/vserver/namespace.h>
++#include <linux/namespace.h>
++#include <linux/err.h>
++
++#include <asm/errno.h>
++#include <asm/uaccess.h>
++
++
++extern struct nx_info *create_nx_info(void);
++
++/*  set ipv4 root (syscall) */
++
++int vc_set_ipv4root(uint32_t nbip, void __user *data)
++{
++	int i, err = -EPERM;
++	struct vcmd_set_ipv4root_v3 vc_data;
++	struct nx_info *new_nxi, *nxi = current->nx_info;
++
++	if (nbip < 0 || nbip > NB_IPV4ROOT)
++		return -EINVAL;
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	if (!nxi || nxi->ipv4[0] == 0 || capable(CAP_NET_ADMIN))
++		/* We are allowed to change everything */
++		err = 0;
++	else if (nxi) {
++		int found = 0;
++
++		/* We are allowed to select a subset of the currently
++		   installed IP numbers. No new one are allowed
++		   We can't change the broadcast address though */
++		for (i=0; i<nbip; i++) {
++			int j;
++			__u32 nxip = vc_data.nx_mask_pair[i].ip;
++			for (j=0; j<nxi->nbipv4; j++) {
++				if (nxip == nxi->ipv4[j]) {
++					found++;
++					break;
++				}
++			}
++		}
++		if ((found == nbip) &&
++			(vc_data.broadcast == nxi->v4_bcast))
++			err = 0;
++	}
++	if (err)
++		return err;
++
++	new_nxi = create_nx_info();
++	if (IS_ERR(new_nxi))
++		return -EINVAL;
++
++	new_nxi->nbipv4 = nbip;
++	for (i=0; i<nbip; i++) {
++		new_nxi->ipv4[i] = vc_data.nx_mask_pair[i].ip;
++		new_nxi->mask[i] = vc_data.nx_mask_pair[i].mask;
++	}
++	new_nxi->v4_bcast = vc_data.broadcast;
++	if (nxi)
++		printk("!!! switching nx_info %p->%p\n", nxi, new_nxi);
++
++	nx_migrate_task(current, new_nxi);
++	put_nx_info(new_nxi);
++	return 0;
++}
++
++
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/limit.c
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/limit.c
+@@ -0,0 +1,178 @@
++/*
++ *  linux/kernel/vserver/limit.c
++ *
++ *  Virtual Server: Context Limits
++ *
++ *  Copyright (C) 2004-2005  Herbert Pötzl
++ *
++ *  V0.01  broken out from vcontext V0.05
++ *
++ */
++
++#include <linux/config.h>
++#include <linux/module.h>
++#include <linux/vs_context.h>
++#include <linux/vs_limit.h>
++#include <linux/vserver/limit.h>
++#include <linux/vserver/switch.h>
++#include <linux/vserver/limit_cmd.h>
++
++#include <asm/errno.h>
++#include <asm/uaccess.h>
++
++
++const char *vlimit_name[NUM_LIMITS] = {
++	[RLIMIT_CPU]		= "CPU",
++	[RLIMIT_RSS]		= "RSS",
++	[RLIMIT_NPROC]		= "NPROC",
++	[RLIMIT_NOFILE]		= "NOFILE",
++	[RLIMIT_MEMLOCK]	= "VML",
++	[RLIMIT_AS]		= "VM",
++	[RLIMIT_LOCKS]		= "LOCKS",
++	[RLIMIT_SIGPENDING]	= "SIGP",
++	[RLIMIT_MSGQUEUE]	= "MSGQ",
++
++	[VLIMIT_NSOCK]		= "NSOCK",
++	[VLIMIT_OPENFD]		= "OPENFD",
++	[VLIMIT_ANON]		= "ANON",
++	[VLIMIT_SHMEM]		= "SHMEM",
++};
++
++EXPORT_SYMBOL_GPL(vlimit_name);
++
++
++static int is_valid_rlimit(int id)
++{
++	int valid = 0;
++
++	switch (id) {
++	case RLIMIT_RSS:
++	case RLIMIT_NPROC:
++	case RLIMIT_NOFILE:
++	case RLIMIT_MEMLOCK:
++	case RLIMIT_AS:
++
++	case VLIMIT_NSOCK:
++	case VLIMIT_OPENFD:
++	case VLIMIT_ANON:
++	case VLIMIT_SHMEM:
++		valid = 1;
++		break;
++	}
++	return valid;
++}
++
++static inline uint64_t vc_get_rlim(struct vx_info *vxi, int id)
++{
++	unsigned long limit;
++
++	limit = vxi->limit.rlim[id];
++	if (limit == RLIM_INFINITY)
++		return CRLIM_INFINITY;
++	return limit;
++}
++
++int vc_get_rlimit(uint32_t id, void __user *data)
++{
++	struct vx_info *vxi;
++	struct vcmd_ctx_rlimit_v0 vc_data;
++
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++	if (!is_valid_rlimit(vc_data.id))
++		return -ENOTSUPP;
++
++	vxi = locate_vx_info(id);
++	if (!vxi)
++		return -ESRCH;
++
++	vc_data.maximum = vc_get_rlim(vxi, vc_data.id);
++	vc_data.minimum = CRLIM_UNSET;
++	vc_data.softlimit = CRLIM_UNSET;
++	put_vx_info(vxi);
++
++	if (copy_to_user (data, &vc_data, sizeof(vc_data)))
++		return -EFAULT;
++	return 0;
++}
++
++int vc_set_rlimit(uint32_t id, void __user *data)
++{
++	struct vx_info *vxi;
++	struct vcmd_ctx_rlimit_v0 vc_data;
++
++	if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RESOURCE))
++		return -EPERM;
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++	if (!is_valid_rlimit(vc_data.id))
++		return -ENOTSUPP;
++
++	vxi = locate_vx_info(id);
++	if (!vxi)
++		return -ESRCH;
++
++	if (vc_data.maximum != CRLIM_KEEP)
++		vxi->limit.rlim[vc_data.id] = vc_data.maximum;
++	put_vx_info(vxi);
++
++	return 0;
++}
++
++int vc_get_rlimit_mask(uint32_t id, void __user *data)
++{
++	static struct vcmd_ctx_rlimit_mask_v0 mask = {
++			/* minimum */
++		0
++		,	/* softlimit */
++		0
++		,	/* maximum */
++		(1 << RLIMIT_RSS) |
++		(1 << RLIMIT_NPROC) |
++		(1 << RLIMIT_NOFILE) |
++		(1 << RLIMIT_MEMLOCK) |
++		(1 << RLIMIT_LOCKS) |
++		(1 << RLIMIT_AS) |
++		(1 << VLIMIT_ANON) |
++		0
++		};
++
++	if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RESOURCE))
++		return -EPERM;
++	if (copy_to_user(data, &mask, sizeof(mask)))
++		return -EFAULT;
++	return 0;
++}
++
++
++void vx_vsi_meminfo(struct sysinfo *val)
++{
++	struct vx_info *vxi = current->vx_info;
++	unsigned long v;
++
++	v = vxi->limit.rlim[RLIMIT_RSS];
++	if (v != RLIM_INFINITY)
++		val->totalram = min(val->totalram, v);
++	v = atomic_read(&vxi->limit.rcur[RLIMIT_RSS]);
++	val->freeram = (v < val->totalram) ? val->totalram - v : 0;
++	val->bufferram = 0;
++	val->totalhigh = 0;
++	val->freehigh = 0;
++	return;
++}
++
++void vx_vsi_swapinfo(struct sysinfo *val)
++{
++	struct vx_info *vxi = current->vx_info;
++	unsigned long v, w;
++
++	v = vxi->limit.rlim[RLIMIT_RSS];
++	w = vxi->limit.rlim[RLIMIT_AS];
++	if (w != RLIM_INFINITY)
++		val->totalswap = min(val->totalswap, w -
++		((v != RLIM_INFINITY) ? v : 0));
++	w = atomic_read(&vxi->limit.rcur[RLIMIT_AS]);
++	val->freeswap = (w < val->totalswap) ? val->totalswap - w : 0;
++	return;
++}
++
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/limit_init.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/limit_init.h
+@@ -0,0 +1,28 @@
++
++static inline void vx_info_init_limit(struct _vx_limit *limit)
++{
++	int lim;
++
++	for (lim=0; lim<NUM_LIMITS; lim++) {
++		limit->rlim[lim] = RLIM_INFINITY;
++		limit->rmax[lim] = 0;
++		atomic_set(&limit->rcur[lim], 0);
++		atomic_set(&limit->lhit[lim], 0);
++	}
++}
++
++static inline void vx_info_exit_limit(struct _vx_limit *limit)
++{
++#ifdef	CONFIG_VSERVER_DEBUG
++	unsigned long value;
++	unsigned int lim;
++
++	for (lim=0; lim<NUM_LIMITS; lim++) {
++		value = atomic_read(&limit->rcur[lim]);
++		vxwprintk(value,
++			"!!! limit: %p[%s,%d] = %ld on exit.",
++			limit, vlimit_name[lim], lim, value);
++	}
++#endif
++}
++
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/limit_proc.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/limit_proc.h
+@@ -0,0 +1,58 @@
++#ifndef _VX_LIMIT_PROC_H
++#define _VX_LIMIT_PROC_H
++
++
++static inline void vx_limit_fixup(struct _vx_limit *limit)
++{
++	unsigned long value;
++	unsigned int lim;
++
++	for (lim=0; lim<NUM_LIMITS; lim++) {
++		value = atomic_read(&limit->rcur[lim]);
++		if (value > limit->rmax[lim])
++			limit->rmax[lim] = value;
++		if (limit->rmax[lim] > limit->rlim[lim])
++			limit->rmax[lim] = limit->rlim[lim];
++	}
++}
++
++#define VX_LIMIT_FMT	":\t%10d\t%10ld\t%10ld\t%6d\n"
++
++#define VX_LIMIT_ARG(r)				\
++		,atomic_read(&limit->rcur[r])	\
++		,limit->rmax[r]			\
++		,limit->rlim[r]			\
++		,atomic_read(&limit->lhit[r])
++
++static inline int vx_info_proc_limit(struct _vx_limit *limit, char *buffer)
++{
++	vx_limit_fixup(limit);
++	return sprintf(buffer,
++		"PROC"	VX_LIMIT_FMT
++		"VM"	VX_LIMIT_FMT
++		"VML"	VX_LIMIT_FMT
++		"RSS"	VX_LIMIT_FMT
++		"ANON"	VX_LIMIT_FMT
++		"FILES" VX_LIMIT_FMT
++		"OFD"	VX_LIMIT_FMT
++		"LOCKS" VX_LIMIT_FMT
++		"SOCK"	VX_LIMIT_FMT
++		"MSGQ"	VX_LIMIT_FMT
++		"SHM"	VX_LIMIT_FMT
++		VX_LIMIT_ARG(RLIMIT_NPROC)
++		VX_LIMIT_ARG(RLIMIT_AS)
++		VX_LIMIT_ARG(RLIMIT_MEMLOCK)
++		VX_LIMIT_ARG(RLIMIT_RSS)
++		VX_LIMIT_ARG(VLIMIT_ANON)
++		VX_LIMIT_ARG(RLIMIT_NOFILE)
++		VX_LIMIT_ARG(VLIMIT_OPENFD)
++		VX_LIMIT_ARG(RLIMIT_LOCKS)
++		VX_LIMIT_ARG(VLIMIT_NSOCK)
++		VX_LIMIT_ARG(RLIMIT_MSGQUEUE)
++		VX_LIMIT_ARG(VLIMIT_SHMEM)
++		);
++}
++
++#endif	/* _VX_LIMIT_PROC_H */
++
++
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/namespace.c
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/namespace.c
+@@ -0,0 +1,124 @@
++/*
++ *  linux/kernel/vserver/namespace.c
++ *
++ *  Virtual Server: Context Namespace Support
++ *
++ *  Copyright (C) 2003-2005  Herbert Pötzl
++ *
++ *  V0.01  broken out from context.c 0.07
++ *  V0.02  added task locking for namespace
++ *
++ */
++
++#include <linux/config.h>
++#include <linux/utsname.h>
++#include <linux/sched.h>
++#include <linux/vs_context.h>
++#include <linux/vserver/namespace.h>
++#include <linux/vserver/namespace_cmd.h>
++#include <linux/dcache.h>
++#include <linux/mount.h>
++#include <linux/fs.h>
++
++#include <asm/errno.h>
++#include <asm/uaccess.h>
++
++
++/* namespace functions */
++
++#include <linux/namespace.h>
++
++int vx_set_namespace(struct vx_info *vxi, struct namespace *ns, struct fs_struct *fs)
++{
++	struct fs_struct *fs_copy;
++
++	if (vxi->vx_namespace)
++		return -EPERM;
++	if (!ns || !fs)
++		return -EINVAL;
++
++	fs_copy = copy_fs_struct(fs);
++	if (!fs_copy)
++		return -ENOMEM;
++
++	get_namespace(ns);
++	vxi->vx_namespace = ns;
++	vxi->vx_fs = fs_copy;
++	return 0;
++}
++
++int vc_enter_namespace(uint32_t id, void *data)
++{
++	struct vx_info *vxi;
++	struct fs_struct *old_fs, *fs;
++	struct namespace *old_ns;
++	int ret = 0;
++
++	if (!vx_check(0, VX_ADMIN))
++		return -ENOSYS;
++
++	vxi = locate_vx_info(id);
++	if (!vxi)
++		return -ESRCH;
++
++	ret = -EINVAL;
++	if (!vxi->vx_namespace)
++		goto out_put;
++
++	ret = -ENOMEM;
++	fs = copy_fs_struct(vxi->vx_fs);
++	if (!fs)
++		goto out_put;
++
++	ret = 0;
++	task_lock(current);
++	old_ns = current->namespace;
++	old_fs = current->fs;
++	get_namespace(vxi->vx_namespace);
++	current->namespace = vxi->vx_namespace;
++	current->fs = fs;
++	task_unlock(current);
++
++	put_namespace(old_ns);
++	put_fs_struct(old_fs);
++out_put:
++	put_vx_info(vxi);
++	return ret;
++}
++
++int vc_cleanup_namespace(uint32_t id, void *data)
++{
++	// down_write(&current->namespace->sem);
++	spin_lock(&vfsmount_lock);
++	umount_unused(current->namespace->root, current->fs);
++	spin_unlock(&vfsmount_lock);
++	// up_write(&current->namespace->sem);
++	return 0;
++}
++
++int vc_set_namespace(uint32_t id, void __user *data)
++{
++	struct fs_struct *fs;
++	struct namespace *ns;
++	struct vx_info *vxi;
++	int ret;
++
++	if (vx_check(0, VX_ADMIN|VX_WATCH))
++		return -ENOSYS;
++
++	task_lock(current);
++	vxi = get_vx_info(current->vx_info);
++	fs = current->fs;
++	atomic_inc(&fs->count);
++	ns = current->namespace;
++	get_namespace(current->namespace);
++	task_unlock(current);
++
++	ret = vx_set_namespace(vxi, ns, fs);
++
++	put_namespace(ns);
++	put_fs_struct(fs);
++	put_vx_info(vxi);
++	return ret;
++}
++
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/network.c
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/network.c
+@@ -0,0 +1,764 @@
++/*
++ *  linux/kernel/vserver/network.c
++ *
++ *  Virtual Server: Network Support
++ *
++ *  Copyright (C) 2003-2005  Herbert Pötzl
++ *
++ *  V0.01  broken out from vcontext V0.05
++ *  V0.02  cleaned up implementation
++ *  V0.03  added equiv nx commands
++ *  V0.04  switch to RCU based hash
++ *  V0.05  and back to locking again
++ *
++ */
++
++#include <linux/config.h>
++#include <linux/slab.h>
++#include <linux/vserver/network_cmd.h>
++#include <linux/rcupdate.h>
++#include <net/tcp.h>
++
++#include <asm/errno.h>
++
++
++/*	__alloc_nx_info()
++
++	* allocate an initialized nx_info struct
++	* doesn't make it visible (hash)			*/
++
++static struct nx_info *__alloc_nx_info(nid_t nid)
++{
++	struct nx_info *new = NULL;
++
++	vxdprintk(VXD_CBIT(nid, 1), "alloc_nx_info(%d)*", nid);
++
++	/* would this benefit from a slab cache? */
++	new = kmalloc(sizeof(struct nx_info), GFP_KERNEL);
++	if (!new)
++		return 0;
++
++	memset (new, 0, sizeof(struct nx_info));
++	new->nx_id = nid;
++	INIT_HLIST_NODE(&new->nx_hlist);
++	atomic_set(&new->nx_usecnt, 0);
++	atomic_set(&new->nx_tasks, 0);
++	new->nx_state = 0;
++
++	new->nx_flags = NXF_INIT_SET;
++
++	/* rest of init goes here */
++
++	vxdprintk(VXD_CBIT(nid, 0),
++		"alloc_nx_info(%d) = %p", nid, new);
++	return new;
++}
++
++/*	__dealloc_nx_info()
++
++	* final disposal of nx_info				*/
++
++static void __dealloc_nx_info(struct nx_info *nxi)
++{
++	vxdprintk(VXD_CBIT(nid, 0),
++		"dealloc_nx_info(%p)", nxi);
++
++	nxi->nx_hlist.next = LIST_POISON1;
++	nxi->nx_id = -1;
++
++	BUG_ON(atomic_read(&nxi->nx_usecnt));
++	BUG_ON(atomic_read(&nxi->nx_tasks));
++
++	nxi->nx_state |= NXS_RELEASED;
++	kfree(nxi);
++}
++
++static void __shutdown_nx_info(struct nx_info *nxi)
++{
++	nxi->nx_state |= NXS_SHUTDOWN;
++	vs_net_change(nxi, VSC_NETDOWN);
++}
++
++/*	exported stuff						*/
++
++void free_nx_info(struct nx_info *nxi)
++{
++	/* context shutdown is mandatory */
++	BUG_ON(nxi->nx_state != NXS_SHUTDOWN);
++
++	/* context must not be hashed */
++	BUG_ON(nxi->nx_state & NXS_HASHED);
++
++	BUG_ON(atomic_read(&nxi->nx_usecnt));
++	BUG_ON(atomic_read(&nxi->nx_tasks));
++
++	__dealloc_nx_info(nxi);
++}
++
++
++/*	hash table for nx_info hash */
++
++#define NX_HASH_SIZE	13
++
++struct hlist_head nx_info_hash[NX_HASH_SIZE];
++
++static spinlock_t nx_info_hash_lock = SPIN_LOCK_UNLOCKED;
++
++
++static inline unsigned int __hashval(nid_t nid)
++{
++	return (nid % NX_HASH_SIZE);
++}
++
++
++
++/*	__hash_nx_info()
++
++	* add the nxi to the global hash table
++	* requires the hash_lock to be held			*/
++
++static inline void __hash_nx_info(struct nx_info *nxi)
++{
++	struct hlist_head *head;
++
++	vxd_assert_lock(&nx_info_hash_lock);
++	vxdprintk(VXD_CBIT(nid, 4),
++		"__hash_nx_info: %p[#%d]", nxi, nxi->nx_id);
++
++	/* context must not be hashed */
++	BUG_ON(nx_info_state(nxi, NXS_HASHED));
++
++	nxi->nx_state |= NXS_HASHED;
++	head = &nx_info_hash[__hashval(nxi->nx_id)];
++	hlist_add_head(&nxi->nx_hlist, head);
++}
++
++/*	__unhash_nx_info()
++
++	* remove the nxi from the global hash table
++	* requires the hash_lock to be held			*/
++
++static inline void __unhash_nx_info(struct nx_info *nxi)
++{
++	vxd_assert_lock(&nx_info_hash_lock);
++	vxdprintk(VXD_CBIT(nid, 4),
++		"__unhash_nx_info: %p[#%d]", nxi, nxi->nx_id);
++
++	/* context must be hashed */
++	BUG_ON(!nx_info_state(nxi, NXS_HASHED));
++
++	nxi->nx_state &= ~NXS_HASHED;
++	hlist_del(&nxi->nx_hlist);
++}
++
++
++/*	__lookup_nx_info()
++
++	* requires the hash_lock to be held
++	* doesn't increment the nx_refcnt			*/
++
++static inline struct nx_info *__lookup_nx_info(nid_t nid)
++{
++	struct hlist_head *head = &nx_info_hash[__hashval(nid)];
++	struct hlist_node *pos;
++	struct nx_info *nxi;
++
++	vxd_assert_lock(&nx_info_hash_lock);
++	hlist_for_each(pos, head) {
++		nxi = hlist_entry(pos, struct nx_info, nx_hlist);
++
++		if (nxi->nx_id == nid)
++			goto found;
++	}
++	nxi = NULL;
++found:
++	vxdprintk(VXD_CBIT(nid, 0),
++		"__lookup_nx_info(#%u): %p[#%u]",
++		nid, nxi, nxi?nxi->nx_id:0);
++	return nxi;
++}
++
++
++/*	__nx_dynamic_id()
++
++	* find unused dynamic nid
++	* requires the hash_lock to be held			*/
++
++static inline nid_t __nx_dynamic_id(void)
++{
++	static nid_t seq = MAX_N_CONTEXT;
++	nid_t barrier = seq;
++
++	vxd_assert_lock(&nx_info_hash_lock);
++	do {
++		if (++seq > MAX_N_CONTEXT)
++			seq = MIN_D_CONTEXT;
++		if (!__lookup_nx_info(seq)) {
++			vxdprintk(VXD_CBIT(nid, 4),
++				"__nx_dynamic_id: [#%d]", seq);
++			return seq;
++		}
++	} while (barrier != seq);
++	return 0;
++}
++
++/*	__create_nx_info()
++
++	* create the requested context
++	* get() and hash it					*/
++
++static struct nx_info * __create_nx_info(int id)
++{
++	struct nx_info *new, *nxi = NULL;
++
++	vxdprintk(VXD_CBIT(nid, 1), "create_nx_info(%d)*", id);
++
++	if (!(new = __alloc_nx_info(id)))
++		return ERR_PTR(-ENOMEM);
++
++	/* required to make dynamic xids unique */
++	spin_lock(&nx_info_hash_lock);
++
++	/* dynamic context requested */
++	if (id == NX_DYNAMIC_ID) {
++		id = __nx_dynamic_id();
++		if (!id) {
++			printk(KERN_ERR "no dynamic context available.\n");
++			nxi = ERR_PTR(-EAGAIN);
++			goto out_unlock;
++		}
++		new->nx_id = id;
++	}
++	/* static context requested */
++	else if ((nxi = __lookup_nx_info(id))) {
++		vxdprintk(VXD_CBIT(nid, 0),
++			"create_nx_info(%d) = %p (already there)", id, nxi);
++		if (nx_info_flags(nxi, NXF_STATE_SETUP, 0))
++			nxi = ERR_PTR(-EBUSY);
++		else
++			nxi = ERR_PTR(-EEXIST);
++		goto out_unlock;
++	}
++	/* dynamic nid creation blocker */
++	else if (id >= MIN_D_CONTEXT) {
++		vxdprintk(VXD_CBIT(nid, 0),
++			"create_nx_info(%d) (dynamic rejected)", id);
++		nxi = ERR_PTR(-EINVAL);
++		goto out_unlock;
++	}
++
++	/* new context */
++	vxdprintk(VXD_CBIT(nid, 0),
++		"create_nx_info(%d) = %p (new)", id, new);
++	__hash_nx_info(get_nx_info(new));
++	nxi = new, new = NULL;
++
++out_unlock:
++	spin_unlock(&nx_info_hash_lock);
++	if (new)
++		__dealloc_nx_info(new);
++	return nxi;
++}
++
++
++
++/*	exported stuff						*/
++
++
++void unhash_nx_info(struct nx_info *nxi)
++{
++	__shutdown_nx_info(nxi);
++	spin_lock(&nx_info_hash_lock);
++	__unhash_nx_info(nxi);
++	spin_unlock(&nx_info_hash_lock);
++}
++
++#ifdef  CONFIG_VSERVER_LEGACYNET
++
++struct nx_info *create_nx_info(void)
++{
++	return __create_nx_info(NX_DYNAMIC_ID);
++}
++
++#endif
++
++/*	locate_nx_info()
++
++	* search for a nx_info and get() it
++	* negative id means current				*/
++
++struct nx_info *locate_nx_info(int id)
++{
++	struct nx_info *nxi = NULL;
++
++	if (id < 0) {
++		nxi = get_nx_info(current->nx_info);
++	} else if (id > 1) {
++		spin_lock(&nx_info_hash_lock);
++		nxi = get_nx_info(__lookup_nx_info(id));
++		spin_unlock(&nx_info_hash_lock);
++	}
++	return nxi;
++}
++
++/*	nid_is_hashed()
++
++	* verify that nid is still hashed			*/
++
++int nid_is_hashed(nid_t nid)
++{
++	int hashed;
++
++	spin_lock(&nx_info_hash_lock);
++	hashed = (__lookup_nx_info(nid) != NULL);
++	spin_unlock(&nx_info_hash_lock);
++	return hashed;
++}
++
++
++#ifdef	CONFIG_PROC_FS
++
++int get_nid_list(int index, unsigned int *nids, int size)
++{
++	int hindex, nr_nids = 0;
++
++	for (hindex = 0; hindex < NX_HASH_SIZE; hindex++) {
++		struct hlist_head *head = &nx_info_hash[hindex];
++		struct hlist_node *pos;
++
++		spin_lock(&nx_info_hash_lock);
++		hlist_for_each(pos, head) {
++			struct nx_info *nxi;
++
++			if (--index > 0)
++				continue;
++
++			nxi = hlist_entry(pos, struct nx_info, nx_hlist);
++			nids[nr_nids] = nxi->nx_id;
++			if (++nr_nids >= size) {
++				spin_unlock(&nx_info_hash_lock);
++				goto out;
++			}
++		}
++		/* keep the lock time short */
++		spin_unlock(&nx_info_hash_lock);
++	}
++out:
++	return nr_nids;
++}
++#endif
++
++
++/*
++ *	migrate task to new network
++ *	gets nxi, puts old_nxi on change
++ */
++
++int nx_migrate_task(struct task_struct *p, struct nx_info *nxi)
++{
++	struct nx_info *old_nxi;
++	int ret = 0;
++
++	if (!p || !nxi)
++		BUG();
++
++	vxdprintk(VXD_CBIT(nid, 5),
++		"nx_migrate_task(%p,%p[#%d.%d.%d])",
++		p, nxi, nxi->nx_id,
++		atomic_read(&nxi->nx_usecnt),
++		atomic_read(&nxi->nx_tasks));
++
++	/* maybe disallow this completely? */
++	old_nxi = task_get_nx_info(p);
++	if (old_nxi == nxi)
++		goto out;
++
++	task_lock(p);
++	if (old_nxi)
++		clr_nx_info(&p->nx_info);
++	claim_nx_info(nxi, p);
++	set_nx_info(&p->nx_info, nxi);
++	p->nid = nxi->nx_id;
++	task_unlock(p);
++
++	vxdprintk(VXD_CBIT(nid, 5),
++		"moved task %p into nxi:%p[#%d]",
++		p, nxi, nxi->nx_id);
++
++	if (old_nxi)
++		release_nx_info(old_nxi, p);
++out:
++	put_nx_info(old_nxi);
++	return ret;
++}
++
++
++#include <linux/netdevice.h>
++#include <linux/inetdevice.h>
++
++
++int ifa_in_nx_info(struct in_ifaddr *ifa, struct nx_info *nxi)
++{
++	if (!nxi)
++		return 1;
++	if (!ifa)
++		return 0;
++	return addr_in_nx_info(nxi, ifa->ifa_address);
++}
++
++int dev_in_nx_info(struct net_device *dev, struct nx_info *nxi)
++{
++	struct in_device *in_dev;
++	struct in_ifaddr **ifap;
++	struct in_ifaddr *ifa;
++	int ret = 0;
++
++	if (!nxi)
++		return 1;
++
++	in_dev = in_dev_get(dev);
++	if (!in_dev)
++		goto out;
++
++	for (ifap = &in_dev->ifa_list; (ifa = *ifap) != NULL;
++		ifap = &ifa->ifa_next) {
++		if (addr_in_nx_info(nxi, ifa->ifa_address)) {
++			ret = 1;
++			break;
++		}
++	}
++	in_dev_put(in_dev);
++out:
++	return ret;
++}
++
++/*
++ *	check if address is covered by socket
++ *
++ *	sk:	the socket to check against
++ *	addr:	the address in question (must be != 0)
++ */
++static inline int __addr_in_socket(struct sock *sk, uint32_t addr)
++{
++	struct nx_info *nxi = sk->sk_nx_info;
++	uint32_t saddr = inet_rcv_saddr(sk);
++
++	vxdprintk(VXD_CBIT(net, 5),
++		"__addr_in_socket(%p,%d.%d.%d.%d) %p:%d.%d.%d.%d %p;%lx",
++		sk, VXD_QUAD(addr), nxi, VXD_QUAD(saddr), sk->sk_socket,
++		(sk->sk_socket?sk->sk_socket->flags:0));
++
++	if (saddr) {
++		/* direct address match */
++		return (saddr == addr);
++	} else if (nxi) {
++		/* match against nx_info */
++		return addr_in_nx_info(nxi, addr);
++	} else {
++		/* unrestricted any socket */
++		return 1;
++	}
++}
++
++
++int nx_addr_conflict(struct nx_info *nxi, uint32_t addr, struct sock *sk)
++{
++	vxdprintk(VXD_CBIT(net, 2),
++		"nx_addr_conflict(%p,%p) %d.%d,%d.%d",
++		nxi, sk, VXD_QUAD(addr));
++
++	if (addr) {
++		/* check real address */
++		return __addr_in_socket(sk, addr);
++	} else if (nxi) {
++		/* check against nx_info */
++		int i, n = nxi->nbipv4;
++
++		for (i=0; i<n; i++)
++			if (__addr_in_socket(sk, nxi->ipv4[i]))
++				return 1;
++		return 0;
++	} else {
++		/* check against any */
++		return 1;
++	}
++}
++
++
++/* vserver syscall commands below here */
++
++/* taks nid and nx_info functions */
++
++#include <asm/uaccess.h>
++
++
++int vc_task_nid(uint32_t id, void __user *data)
++{
++	nid_t nid;
++
++	if (id) {
++		struct task_struct *tsk;
++
++		if (!vx_check(0, VX_ADMIN|VX_WATCH))
++			return -EPERM;
++
++		read_lock(&tasklist_lock);
++		tsk = find_task_by_real_pid(id);
++		nid = (tsk) ? tsk->nid : -ESRCH;
++		read_unlock(&tasklist_lock);
++	}
++	else
++		nid = current->nid;
++	return nid;
++}
++
++
++int vc_nx_info(uint32_t id, void __user *data)
++{
++	struct nx_info *nxi;
++	struct vcmd_nx_info_v0 vc_data;
++
++	if (!vx_check(0, VX_ADMIN))
++		return -ENOSYS;
++	if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RESOURCE))
++		return -EPERM;
++
++	nxi = locate_nx_info(id);
++	if (!nxi)
++		return -ESRCH;
++
++	vc_data.nid = nxi->nx_id;
++	put_nx_info(nxi);
++
++	if (copy_to_user (data, &vc_data, sizeof(vc_data)))
++		return -EFAULT;
++	return 0;
++}
++
++
++/* network functions */
++
++int vc_net_create(uint32_t nid, void __user *data)
++{
++	struct vcmd_net_create vc_data = { .flagword = NXF_INIT_SET };
++	struct nx_info *new_nxi;
++	int ret;
++
++	if (!capable(CAP_SYS_ADMIN))
++		return -EPERM;
++	if (data && copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	if ((nid > MAX_S_CONTEXT) && (nid != VX_DYNAMIC_ID))
++		return -EINVAL;
++	if (nid < 2)
++		return -EINVAL;
++
++	new_nxi = __create_nx_info(nid);
++	if (IS_ERR(new_nxi))
++		return PTR_ERR(new_nxi);
++
++	/* initial flags */
++	new_nxi->nx_flags = vc_data.flagword;
++
++	vs_net_change(new_nxi, VSC_NETUP);
++	ret = new_nxi->nx_id;
++	nx_migrate_task(current, new_nxi);
++	/* if this fails, we might end up with a hashed nx_info */
++	put_nx_info(new_nxi);
++	return ret;
++}
++
++
++int vc_net_migrate(uint32_t id, void __user *data)
++{
++	struct nx_info *nxi;
++
++	if (!capable(CAP_SYS_ADMIN))
++		return -EPERM;
++
++	nxi = locate_nx_info(id);
++	if (!nxi)
++		return -ESRCH;
++	nx_migrate_task(current, nxi);
++	put_nx_info(nxi);
++	return 0;
++}
++
++int vc_net_add(uint32_t nid, void __user *data)
++{
++	struct vcmd_net_addr_v0 vc_data;
++	struct nx_info *nxi;
++	int index, pos, ret = 0;
++
++	if (!capable(CAP_SYS_ADMIN))
++		return -EPERM;
++	if (data && copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	switch (vc_data.type) {
++	case NXA_TYPE_IPV4:
++		if ((vc_data.count < 1) || (vc_data.count > 4))
++			return -EINVAL;
++		break;
++
++	default:
++		break;
++	}
++
++	nxi = locate_nx_info(nid);
++	if (!nxi)
++		return -ESRCH;
++
++	switch (vc_data.type) {
++	case NXA_TYPE_IPV4:
++		index = 0;
++		while ((index < vc_data.count) &&
++			((pos = nxi->nbipv4) < NB_IPV4ROOT)) {
++			nxi->ipv4[pos] = vc_data.ip[index];
++			nxi->mask[pos] = vc_data.mask[index];
++			index++;
++			nxi->nbipv4++;
++		}
++		ret = index;
++		break;
++
++	case NXA_TYPE_IPV4|NXA_MOD_BCAST:
++		nxi->v4_bcast = vc_data.ip[0];
++		ret = 1;
++		break;
++
++	default:
++		ret = -EINVAL;
++		break;
++	}
++
++	put_nx_info(nxi);
++	return ret;
++}
++
++int vc_net_remove(uint32_t nid, void __user *data)
++{
++	struct vcmd_net_addr_v0 vc_data;
++	struct nx_info *nxi;
++	int ret = 0;
++
++	if (!capable(CAP_SYS_ADMIN))
++		return -EPERM;
++	if (data && copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	nxi = locate_nx_info(nid);
++	if (!nxi)
++		return -ESRCH;
++
++	switch (vc_data.type) {
++	case NXA_TYPE_ANY:
++		nxi->nbipv4 = 0;
++		break;
++
++	default:
++		ret = -EINVAL;
++		break;
++	}
++
++	put_nx_info(nxi);
++	return ret;
++}
++
++int vc_get_nflags(uint32_t id, void __user *data)
++{
++	struct nx_info *nxi;
++	struct vcmd_net_flags_v0 vc_data;
++
++	if (!capable(CAP_SYS_ADMIN))
++		return -EPERM;
++
++	nxi = locate_nx_info(id);
++	if (!nxi)
++		return -ESRCH;
++
++	vc_data.flagword = nxi->nx_flags;
++
++	/* special STATE flag handling */
++	vc_data.mask = vx_mask_flags(~0UL, nxi->nx_flags, NXF_ONE_TIME);
++
++	put_nx_info(nxi);
++
++	if (copy_to_user (data, &vc_data, sizeof(vc_data)))
++		return -EFAULT;
++	return 0;
++}
++
++int vc_set_nflags(uint32_t id, void __user *data)
++{
++	struct nx_info *nxi;
++	struct vcmd_net_flags_v0 vc_data;
++	uint64_t mask, trigger;
++
++	if (!capable(CAP_SYS_ADMIN))
++		return -EPERM;
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	nxi = locate_nx_info(id);
++	if (!nxi)
++		return -ESRCH;
++
++	/* special STATE flag handling */
++	mask = vx_mask_mask(vc_data.mask, nxi->nx_flags, NXF_ONE_TIME);
++	trigger = (mask & nxi->nx_flags) ^ (mask & vc_data.flagword);
++
++	nxi->nx_flags = vx_mask_flags(nxi->nx_flags,
++		vc_data.flagword, mask);
++	put_nx_info(nxi);
++	return 0;
++}
++
++int vc_get_ncaps(uint32_t id, void __user *data)
++{
++	struct nx_info *nxi;
++	struct vcmd_net_caps_v0 vc_data;
++
++	if (!capable(CAP_SYS_ADMIN))
++		return -EPERM;
++
++	nxi = locate_nx_info(id);
++	if (!nxi)
++		return -ESRCH;
++
++	vc_data.ncaps = nxi->nx_ncaps;
++	vc_data.cmask = ~0UL;
++	put_nx_info(nxi);
++
++	if (copy_to_user (data, &vc_data, sizeof(vc_data)))
++		return -EFAULT;
++	return 0;
++}
++
++int vc_set_ncaps(uint32_t id, void __user *data)
++{
++	struct nx_info *nxi;
++	struct vcmd_net_caps_v0 vc_data;
++
++	if (!capable(CAP_SYS_ADMIN))
++		return -EPERM;
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	nxi = locate_nx_info(id);
++	if (!nxi)
++		return -ESRCH;
++
++	nxi->nx_ncaps = vx_mask_flags(nxi->nx_ncaps,
++		vc_data.ncaps, vc_data.cmask);
++	put_nx_info(nxi);
++	return 0;
++}
++
++
++#include <linux/module.h>
++
++EXPORT_SYMBOL_GPL(free_nx_info);
++EXPORT_SYMBOL_GPL(unhash_nx_info);
++
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/proc.c
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/proc.c
+@@ -0,0 +1,863 @@
++/*
++ *  linux/kernel/vserver/proc.c
++ *
++ *  Virtual Context Support
++ *
++ *  Copyright (C) 2003-2005  Herbert Pötzl
++ *
++ *  V0.01  basic structure
++ *  V0.02  adaptation vs1.3.0
++ *  V0.03  proc permissions
++ *  V0.04  locking/generic
++ *  V0.05  next generation procfs
++ *  V0.06  inode validation
++ *  V0.07  generic rewrite vid
++ *
++ */
++
++#include <linux/config.h>
++#include <linux/errno.h>
++#include <linux/proc_fs.h>
++#include <linux/sched.h>
++#include <linux/vs_context.h>
++#include <linux/vs_network.h>
++#include <linux/vs_cvirt.h>
++
++#include <linux/vserver/switch.h>
++
++#include <asm/uaccess.h>
++#include <asm/unistd.h>
++
++#include "cvirt_proc.h"
++#include "limit_proc.h"
++#include "sched_proc.h"
++#include "vci_config.h"
++
++static struct proc_dir_entry *proc_virtual;
++
++static struct proc_dir_entry *proc_vnet;
++
++
++enum vid_directory_inos {
++	PROC_XID_INO = 32,
++	PROC_XID_INFO,
++	PROC_XID_STATUS,
++	PROC_XID_LIMIT,
++	PROC_XID_SCHED,
++	PROC_XID_CVIRT,
++	PROC_XID_CACCT,
++
++	PROC_NID_INO = 64,
++	PROC_NID_INFO,
++	PROC_NID_STATUS,
++};
++
++#define PROC_VID_MASK	0x60
++
++
++/* first the actual feeds */
++
++
++static int proc_virtual_info(int vid, char *buffer)
++{
++	return sprintf(buffer,
++		"VCIVersion:\t%04x:%04x\n"
++		"VCISyscall:\t%d\n"
++		"VCIKernel:\t%08x\n"
++		,VCI_VERSION >> 16
++		,VCI_VERSION & 0xFFFF
++		,__NR_vserver
++		,vci_kernel_config()
++		);
++}
++
++
++int proc_xid_info (int vid, char *buffer)
++{
++	struct vx_info *vxi;
++	int length;
++
++	vxi = locate_vx_info(vid);
++	if (!vxi)
++		return 0;
++	length = sprintf(buffer,
++		"ID:\t%d\n"
++		"Info:\t%p\n"
++		"Init:\t%d\n"
++		,vxi->vx_id
++		,vxi
++		,vxi->vx_initpid
++		);
++	put_vx_info(vxi);
++	return length;
++}
++
++int proc_xid_status (int vid, char *buffer)
++{
++	struct vx_info *vxi;
++	int length;
++
++	vxi = locate_vx_info(vid);
++	if (!vxi)
++		return 0;
++	length = sprintf(buffer,
++		"UseCnt:\t%d\n"
++		"Tasks:\t%d\n"
++		"Flags:\t%016llx\n"
++		"BCaps:\t%016llx\n"
++		"CCaps:\t%016llx\n"
++		"Ticks:\t%d\n"
++		,atomic_read(&vxi->vx_usecnt)
++		,atomic_read(&vxi->vx_tasks)
++		,(unsigned long long)vxi->vx_flags
++		,(unsigned long long)vxi->vx_bcaps
++		,(unsigned long long)vxi->vx_ccaps
++		,atomic_read(&vxi->limit.ticks)
++		);
++	put_vx_info(vxi);
++	return length;
++}
++
++int proc_xid_limit (int vid, char *buffer)
++{
++	struct vx_info *vxi;
++	int length;
++
++	vxi = locate_vx_info(vid);
++	if (!vxi)
++		return 0;
++	length = vx_info_proc_limit(&vxi->limit, buffer);
++	put_vx_info(vxi);
++	return length;
++}
++
++int proc_xid_sched (int vid, char *buffer)
++{
++	struct vx_info *vxi;
++	int length;
++
++	vxi = locate_vx_info(vid);
++	if (!vxi)
++		return 0;
++	length = vx_info_proc_sched(&vxi->sched, buffer);
++	put_vx_info(vxi);
++	return length;
++}
++
++int proc_xid_cvirt (int vid, char *buffer)
++{
++	struct vx_info *vxi;
++	int length;
++
++	vxi = locate_vx_info(vid);
++	if (!vxi)
++		return 0;
++	vx_update_load(vxi);
++	length = vx_info_proc_cvirt(&vxi->cvirt, buffer);
++	put_vx_info(vxi);
++	return length;
++}
++
++int proc_xid_cacct (int vid, char *buffer)
++{
++	struct vx_info *vxi;
++	int length;
++
++	vxi = locate_vx_info(vid);
++	if (!vxi)
++		return 0;
++	length = vx_info_proc_cacct(&vxi->cacct, buffer);
++	put_vx_info(vxi);
++	return length;
++}
++
++
++static int proc_vnet_info(int vid, char *buffer)
++{
++	return sprintf(buffer,
++		"VCIVersion:\t%04x:%04x\n"
++		"VCISyscall:\t%d\n"
++		,VCI_VERSION >> 16
++		,VCI_VERSION & 0xFFFF
++		,__NR_vserver
++		);
++}
++
++#define atoquad(a) \
++	(((a)>>0) & 0xff), (((a)>>8) & 0xff), \
++	(((a)>>16) & 0xff), (((a)>>24) & 0xff)
++
++int proc_nid_info (int vid, char *buffer)
++{
++	struct nx_info *nxi;
++	int length, i;
++
++	nxi = locate_nx_info(vid);
++	if (!nxi)
++		return 0;
++	length = sprintf(buffer,
++		"ID:\t%d\n"
++		"Info:\t%p\n"
++		,nxi->nx_id
++		,nxi
++		);
++	for (i=0; i<nxi->nbipv4; i++) {
++		length += sprintf(buffer + length,
++			"%d:\t%d.%d.%d.%d/%d.%d.%d.%d\n", i,
++			atoquad(nxi->ipv4[i]),
++			atoquad(nxi->mask[i]));
++	}
++	put_nx_info(nxi);
++	return length;
++}
++
++int proc_nid_status (int vid, char *buffer)
++{
++	struct nx_info *nxi;
++	int length;
++
++	nxi = locate_nx_info(vid);
++	if (!nxi)
++		return 0;
++	length = sprintf(buffer,
++		"UseCnt:\t%d\n"
++		"Tasks:\t%d\n"
++		,atomic_read(&nxi->nx_usecnt)
++		,atomic_read(&nxi->nx_tasks)
++		);
++	put_nx_info(nxi);
++	return length;
++}
++
++/* here the inode helpers */
++
++
++#define fake_ino(id,nr) (((nr) & 0xFFFF) | \
++			(((id) & 0xFFFF) << 16))
++
++#define inode_vid(i)	(((i)->i_ino >> 16) & 0xFFFF)
++#define inode_type(i)	((i)->i_ino & 0xFFFF)
++
++#define MAX_MULBY10	((~0U-9)/10)
++
++
++static struct inode *proc_vid_make_inode(struct super_block * sb,
++	int vid, int ino)
++{
++	struct inode *inode = new_inode(sb);
++
++	if (!inode)
++		goto out;
++
++	inode->i_mtime = inode->i_atime =
++		inode->i_ctime = CURRENT_TIME;
++	inode->i_ino = fake_ino(vid, ino);
++
++	inode->i_uid = 0;
++	inode->i_gid = 0;
++out:
++	return inode;
++}
++
++static int proc_vid_revalidate(struct dentry * dentry, struct nameidata *nd)
++{
++	struct inode * inode = dentry->d_inode;
++	int vid, hashed=0;
++
++	vid = inode_vid(inode);
++	switch (inode_type(inode) & PROC_VID_MASK) {
++		case PROC_XID_INO:
++			hashed = xid_is_hashed(vid);
++			break;
++		case PROC_NID_INO:
++			hashed = nid_is_hashed(vid);
++			break;
++	}
++	if (hashed)
++		return 1;
++	d_drop(dentry);
++	return 0;
++}
++
++
++#define PROC_BLOCK_SIZE (PAGE_SIZE - 1024)
++
++static ssize_t proc_vid_info_read(struct file * file, char * buf,
++			  size_t count, loff_t *ppos)
++{
++	struct inode * inode = file->f_dentry->d_inode;
++	unsigned long page;
++	ssize_t length;
++	int vid;
++
++	if (count > PROC_BLOCK_SIZE)
++		count = PROC_BLOCK_SIZE;
++	if (!(page = __get_free_page(GFP_KERNEL)))
++		return -ENOMEM;
++
++	vid = inode_vid(inode);
++	length = PROC_I(inode)->op.proc_vid_read(vid, (char*)page);
++
++	if (length >= 0)
++		length = simple_read_from_buffer(buf, count, ppos,
++			(char *)page, length);
++	free_page(page);
++	return length;
++}
++
++
++
++
++
++/* here comes the lower level (vid) */
++
++static struct file_operations proc_vid_info_file_operations = {
++	read:		proc_vid_info_read,
++};
++
++static struct dentry_operations proc_vid_dentry_operations = {
++	d_revalidate:	proc_vid_revalidate,
++};
++
++
++struct vid_entry {
++	int type;
++	int len;
++	char *name;
++	mode_t mode;
++};
++
++#define E(type,name,mode) {(type),sizeof(name)-1,(name),(mode)}
++
++static struct vid_entry vx_base_stuff[] = {
++	E(PROC_XID_INFO,	"info",		S_IFREG|S_IRUGO),
++	E(PROC_XID_STATUS,	"status",	S_IFREG|S_IRUGO),
++	E(PROC_XID_LIMIT,	"limit",	S_IFREG|S_IRUGO),
++	E(PROC_XID_SCHED,	"sched",	S_IFREG|S_IRUGO),
++	E(PROC_XID_CVIRT,	"cvirt",	S_IFREG|S_IRUGO),
++	E(PROC_XID_CACCT,	"cacct",	S_IFREG|S_IRUGO),
++	{0,0,NULL,0}
++};
++
++static struct vid_entry vn_base_stuff[] = {
++	E(PROC_NID_INFO,	"info",		S_IFREG|S_IRUGO),
++	E(PROC_NID_STATUS,	"status",	S_IFREG|S_IRUGO),
++	{0,0,NULL,0}
++};
++
++
++
++static struct dentry *proc_vid_lookup(struct inode *dir,
++	struct dentry *dentry, struct nameidata *nd)
++{
++	struct inode *inode;
++	struct vid_entry *p;
++	int error;
++
++	error = -ENOENT;
++	inode = NULL;
++
++	switch (inode_type(dir)) {
++		case PROC_XID_INO:
++			p = vx_base_stuff;
++			break;
++		case PROC_NID_INO:
++			p = vn_base_stuff;
++			break;
++		default:
++			goto out;
++	}
++
++	for (; p->name; p++) {
++		if (p->len != dentry->d_name.len)
++			continue;
++		if (!memcmp(dentry->d_name.name, p->name, p->len))
++			break;
++	}
++	if (!p->name)
++		goto out;
++
++	error = -EINVAL;
++	inode = proc_vid_make_inode(dir->i_sb, inode_vid(dir), p->type);
++	if (!inode)
++		goto out;
++
++	switch(p->type) {
++		case PROC_XID_INFO:
++			PROC_I(inode)->op.proc_vid_read = proc_xid_info;
++			break;
++		case PROC_XID_STATUS:
++			PROC_I(inode)->op.proc_vid_read = proc_xid_status;
++			break;
++		case PROC_XID_LIMIT:
++			PROC_I(inode)->op.proc_vid_read = proc_xid_limit;
++			break;
++		case PROC_XID_SCHED:
++			PROC_I(inode)->op.proc_vid_read = proc_xid_sched;
++			break;
++		case PROC_XID_CVIRT:
++			PROC_I(inode)->op.proc_vid_read = proc_xid_cvirt;
++			break;
++		case PROC_XID_CACCT:
++			PROC_I(inode)->op.proc_vid_read = proc_xid_cacct;
++			break;
++
++		case PROC_NID_INFO:
++			PROC_I(inode)->op.proc_vid_read = proc_nid_info;
++			break;
++		case PROC_NID_STATUS:
++			PROC_I(inode)->op.proc_vid_read = proc_nid_status;
++			break;
++
++		default:
++			printk("procfs: impossible type (%d)",p->type);
++			iput(inode);
++			return ERR_PTR(-EINVAL);
++	}
++	inode->i_mode = p->mode;
++	inode->i_fop = &proc_vid_info_file_operations;
++	inode->i_nlink = 1;
++	inode->i_flags|=S_IMMUTABLE;
++
++	dentry->d_op = &proc_vid_dentry_operations;
++	d_add(dentry, inode);
++	error = 0;
++out:
++	return ERR_PTR(error);
++}
++
++
++static int proc_vid_readdir(struct file * filp,
++	void * dirent, filldir_t filldir)
++{
++	int i, size;
++	struct inode *inode = filp->f_dentry->d_inode;
++	struct vid_entry *p;
++
++	i = filp->f_pos;
++	switch (i) {
++	case 0:
++		if (filldir(dirent, ".", 1, i,
++			inode->i_ino, DT_DIR) < 0)
++			return 0;
++		i++;
++		filp->f_pos++;
++		/* fall through */
++	case 1:
++		if (filldir(dirent, "..", 2, i,
++			PROC_ROOT_INO, DT_DIR) < 0)
++			return 0;
++		i++;
++		filp->f_pos++;
++		/* fall through */
++	default:
++		i -= 2;
++		switch (inode_type(inode)) {
++			case PROC_XID_INO:
++				size = sizeof(vx_base_stuff);
++				p = vx_base_stuff + i;
++				break;
++			case PROC_NID_INO:
++				size = sizeof(vn_base_stuff);
++				p = vn_base_stuff + i;
++				break;
++			default:
++				return 1;
++		}
++		if (i >= size/sizeof(struct vid_entry))
++			return 1;
++		while (p->name) {
++			if (filldir(dirent, p->name, p->len,
++				filp->f_pos, fake_ino(inode_vid(inode),
++				p->type), p->mode >> 12) < 0)
++				return 0;
++			filp->f_pos++;
++			p++;
++		}
++	}
++	return 1;
++}
++
++
++
++
++/* now the upper level (virtual) */
++
++static struct file_operations proc_vid_file_operations = {
++	read:		generic_read_dir,
++	readdir:	proc_vid_readdir,
++};
++
++static struct inode_operations proc_vid_inode_operations = {
++	lookup:		proc_vid_lookup,
++};
++
++
++
++static __inline__ int atovid(const char *str, int len)
++{
++	int vid, c;
++
++	vid = 0;
++	while (len-- > 0) {
++		c = *str - '0';
++		str++;
++		if (c > 9)
++			return -1;
++		if (vid >= MAX_MULBY10)
++			return -1;
++		vid *= 10;
++		vid += c;
++		if (!vid)
++			return -1;
++	}
++	return vid;
++}
++
++
++struct dentry *proc_virtual_lookup(struct inode *dir,
++	struct dentry * dentry, struct nameidata *nd)
++{
++	int xid, len, ret;
++	struct vx_info *vxi;
++	const char *name;
++	struct inode *inode;
++
++	name = dentry->d_name.name;
++	len = dentry->d_name.len;
++	ret = -ENOMEM;
++
++	if (len == 7 && !memcmp(name, "current", 7)) {
++		inode = new_inode(dir->i_sb);
++		if (!inode)
++			goto out;
++		inode->i_mtime = inode->i_atime =
++			inode->i_ctime = CURRENT_TIME;
++		inode->i_ino = fake_ino(1, PROC_XID_INO);
++		inode->i_mode = S_IFLNK|S_IRWXUGO;
++		inode->i_uid = inode->i_gid = 0;
++		d_add(dentry, inode);
++		return NULL;
++	}
++	if (len == 4 && !memcmp(name, "info", 4)) {
++		inode = proc_vid_make_inode(dir->i_sb, 0, PROC_XID_INFO);
++		if (!inode)
++			goto out;
++		inode->i_fop = &proc_vid_info_file_operations;
++		PROC_I(inode)->op.proc_vid_read = proc_virtual_info;
++		inode->i_mode = S_IFREG|S_IRUGO;
++		d_add(dentry, inode);
++		return NULL;
++	}
++
++	ret = -ENOENT;
++	xid = atovid(name, len);
++	if (xid < 0)
++		goto out;
++	vxi = locate_vx_info(xid);
++	if (!vxi)
++		goto out;
++
++	inode = NULL;
++	if (vx_check(xid, VX_ADMIN|VX_WATCH|VX_IDENT))
++		inode = proc_vid_make_inode(dir->i_sb,
++			vxi->vx_id, PROC_XID_INO);
++	if (!inode)
++		goto out_release;
++
++	inode->i_mode = S_IFDIR|S_IRUGO;
++	inode->i_op = &proc_vid_inode_operations;
++	inode->i_fop = &proc_vid_file_operations;
++	inode->i_nlink = 2;
++	inode->i_flags|=S_IMMUTABLE;
++
++	dentry->d_op = &proc_vid_dentry_operations;
++	d_add(dentry, inode);
++	ret = 0;
++
++out_release:
++	put_vx_info(vxi);
++out:
++	return ERR_PTR(ret);
++}
++
++
++struct dentry *proc_vnet_lookup(struct inode *dir,
++	struct dentry * dentry, struct nameidata *nd)
++{
++	int nid, len, ret;
++	struct nx_info *nxi;
++	const char *name;
++	struct inode *inode;
++
++	name = dentry->d_name.name;
++	len = dentry->d_name.len;
++	ret = -ENOMEM;
++	if (len == 7 && !memcmp(name, "current", 7)) {
++		inode = new_inode(dir->i_sb);
++		if (!inode)
++			goto out;
++		inode->i_mtime = inode->i_atime =
++			inode->i_ctime = CURRENT_TIME;
++		inode->i_ino = fake_ino(1, PROC_NID_INO);
++		inode->i_mode = S_IFLNK|S_IRWXUGO;
++		inode->i_uid = inode->i_gid = 0;
++		d_add(dentry, inode);
++		return NULL;
++	}
++	if (len == 4 && !memcmp(name, "info", 4)) {
++		inode = proc_vid_make_inode(dir->i_sb, 0, PROC_NID_INFO);
++		if (!inode)
++			goto out;
++		inode->i_fop = &proc_vid_info_file_operations;
++		PROC_I(inode)->op.proc_vid_read = proc_vnet_info;
++		inode->i_mode = S_IFREG|S_IRUGO;
++		d_add(dentry, inode);
++		return NULL;
++	}
++
++	ret = -ENOENT;
++	nid = atovid(name, len);
++	if (nid < 0)
++		goto out;
++	nxi = locate_nx_info(nid);
++	if (!nxi)
++		goto out;
++
++	inode = NULL;
++	if (1)
++		inode = proc_vid_make_inode(dir->i_sb,
++			nxi->nx_id, PROC_NID_INO);
++	if (!inode)
++		goto out_release;
++
++	inode->i_mode = S_IFDIR|S_IRUGO;
++	inode->i_op = &proc_vid_inode_operations;
++	inode->i_fop = &proc_vid_file_operations;
++	inode->i_nlink = 2;
++	inode->i_flags|=S_IMMUTABLE;
++
++	dentry->d_op = &proc_vid_dentry_operations;
++	d_add(dentry, inode);
++	ret = 0;
++
++out_release:
++	put_nx_info(nxi);
++out:
++	return ERR_PTR(ret);
++}
++
++
++
++
++#define PROC_NUMBUF 10
++#define PROC_MAXVIDS 32
++
++int proc_virtual_readdir(struct file * filp,
++	void * dirent, filldir_t filldir)
++{
++	unsigned int xid_array[PROC_MAXVIDS];
++	char buf[PROC_NUMBUF];
++	unsigned int nr = filp->f_pos-3;
++	unsigned int nr_xids, i;
++	ino_t ino;
++
++	switch ((long)filp->f_pos) {
++	case 0:
++		ino = fake_ino(0, PROC_XID_INO);
++		if (filldir(dirent, ".", 1,
++			filp->f_pos, ino, DT_DIR) < 0)
++			return 0;
++		filp->f_pos++;
++		/* fall through */
++	case 1:
++		ino = filp->f_dentry->d_parent->d_inode->i_ino;
++		if (filldir(dirent, "..", 2,
++			filp->f_pos, ino, DT_DIR) < 0)
++			return 0;
++		filp->f_pos++;
++		/* fall through */
++	case 2:
++		ino = fake_ino(0, PROC_XID_INFO);
++		if (filldir(dirent, "info", 4,
++			filp->f_pos, ino, DT_LNK) < 0)
++			return 0;
++		filp->f_pos++;
++		/* fall through */
++	case 3:
++		if (vx_current_xid() > 1) {
++			ino = fake_ino(1, PROC_XID_INO);
++			if (filldir(dirent, "current", 7,
++				filp->f_pos, ino, DT_LNK) < 0)
++				return 0;
++		}
++		filp->f_pos++;
++	}
++
++	nr_xids = get_xid_list(nr, xid_array, PROC_MAXVIDS);
++	for (i = 0; i < nr_xids; i++) {
++		int xid = xid_array[i];
++		ino_t ino = fake_ino(xid, PROC_XID_INO);
++		unsigned int j = PROC_NUMBUF;
++
++		do buf[--j] = '0' + (xid % 10); while (xid/=10);
++
++		if (filldir(dirent, buf+j, PROC_NUMBUF-j,
++			filp->f_pos, ino, DT_DIR) < 0)
++			break;
++		filp->f_pos++;
++	}
++	return 0;
++}
++
++
++static struct file_operations proc_virtual_dir_operations = {
++	read:		generic_read_dir,
++	readdir:	proc_virtual_readdir,
++};
++
++static struct inode_operations proc_virtual_dir_inode_operations = {
++	lookup:		proc_virtual_lookup,
++};
++
++
++int proc_vnet_readdir(struct file * filp,
++	void * dirent, filldir_t filldir)
++{
++	unsigned int nid_array[PROC_MAXVIDS];
++	char buf[PROC_NUMBUF];
++	unsigned int nr = filp->f_pos-3;
++	unsigned int nr_nids, i;
++	ino_t ino;
++
++	switch ((long)filp->f_pos) {
++	case 0:
++		ino = fake_ino(0, PROC_NID_INO);
++		if (filldir(dirent, ".", 1,
++			filp->f_pos, ino, DT_DIR) < 0)
++			return 0;
++		filp->f_pos++;
++		/* fall through */
++	case 1:
++		ino = filp->f_dentry->d_parent->d_inode->i_ino;
++		if (filldir(dirent, "..", 2,
++			filp->f_pos, ino, DT_DIR) < 0)
++			return 0;
++		filp->f_pos++;
++		/* fall through */
++	case 2:
++		ino = fake_ino(0, PROC_NID_INFO);
++		if (filldir(dirent, "info", 4,
++			filp->f_pos, ino, DT_LNK) < 0)
++			return 0;
++		filp->f_pos++;
++		/* fall through */
++	case 3:
++		if (vx_current_xid() > 1) {
++			ino = fake_ino(1, PROC_NID_INO);
++			if (filldir(dirent, "current", 7,
++				filp->f_pos, ino, DT_LNK) < 0)
++				return 0;
++		}
++		filp->f_pos++;
++	}
++
++	nr_nids = get_nid_list(nr, nid_array, PROC_MAXVIDS);
++	for (i = 0; i < nr_nids; i++) {
++		int nid = nid_array[i];
++		ino_t ino = fake_ino(nid, PROC_NID_INO);
++		unsigned long j = PROC_NUMBUF;
++
++		do buf[--j] = '0' + (nid % 10); while (nid/=10);
++
++		if (filldir(dirent, buf+j, PROC_NUMBUF-j,
++			filp->f_pos, ino, DT_DIR) < 0)
++			break;
++		filp->f_pos++;
++	}
++	return 0;
++}
++
++
++static struct file_operations proc_vnet_dir_operations = {
++	read:		generic_read_dir,
++	readdir:	proc_vnet_readdir,
++};
++
++static struct inode_operations proc_vnet_dir_inode_operations = {
++	lookup:		proc_vnet_lookup,
++};
++
++
++
++void proc_vx_init(void)
++{
++	struct proc_dir_entry *ent;
++
++	ent = proc_mkdir("virtual", 0);
++	if (ent) {
++		ent->proc_fops = &proc_virtual_dir_operations;
++		ent->proc_iops = &proc_virtual_dir_inode_operations;
++	}
++	proc_virtual = ent;
++
++	ent = proc_mkdir("virtnet", 0);
++	if (ent) {
++		ent->proc_fops = &proc_vnet_dir_operations;
++		ent->proc_iops = &proc_vnet_dir_inode_operations;
++	}
++	proc_vnet = ent;
++}
++
++
++
++
++/* per pid info */
++
++
++int proc_pid_vx_info(struct task_struct *p, char *buffer)
++{
++	struct vx_info *vxi;
++	char * orig = buffer;
++
++	buffer += sprintf (buffer,"XID:\t%d\n", vx_task_xid(p));
++	vxi = task_get_vx_info(p);
++	if (vxi && !vx_flags(VXF_INFO_HIDE, 0)) {
++		buffer += sprintf (buffer,"BCaps:\t%016llx\n"
++			,(unsigned long long)vxi->vx_bcaps);
++		buffer += sprintf (buffer,"CCaps:\t%016llx\n"
++			,(unsigned long long)vxi->vx_ccaps);
++		buffer += sprintf (buffer,"CFlags:\t%016llx\n"
++			,(unsigned long long)vxi->vx_flags);
++		buffer += sprintf (buffer,"CIPid:\t%d\n"
++			,vxi->vx_initpid);
++	}
++	put_vx_info(vxi);
++	return buffer - orig;
++}
++
++
++int proc_pid_nx_info(struct task_struct *p, char *buffer)
++{
++	struct nx_info *nxi;
++	char * orig = buffer;
++
++	buffer += sprintf (buffer,"NID:\t%d\n", nx_task_nid(p));
++	nxi = task_get_nx_info(p);
++	if (nxi && !vx_flags(VXF_INFO_HIDE, 0)) {
++		int i;
++
++		for (i=0; i<nxi->nbipv4; i++){
++			buffer += sprintf (buffer,
++				"V4Root[%d]:\t%d.%d.%d.%d/%d.%d.%d.%d\n", i
++				,NIPQUAD(nxi->ipv4[i])
++				,NIPQUAD(nxi->mask[i]));
++		}
++		buffer += sprintf (buffer,
++			"V4Root[bcast]:\t%d.%d.%d.%d\n"
++			,NIPQUAD(nxi->v4_bcast));
++	}
++	put_nx_info(nxi);
++	return buffer - orig;
++}
++
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/sched.c
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/sched.c
+@@ -0,0 +1,218 @@
++/*
++ *  linux/kernel/vserver/sched.c
++ *
++ *  Virtual Server: Scheduler Support
++ *
++ *  Copyright (C) 2004-2005  Herbert Pötzl
++ *
++ *  V0.01  adapted Sam Vilains version to 2.6.3
++ *  V0.02  removed legacy interface
++ *
++ */
++
++#include <linux/config.h>
++#include <linux/sched.h>
++#include <linux/vs_context.h>
++#include <linux/vs_sched.h>
++#include <linux/vserver/sched_cmd.h>
++
++#include <asm/errno.h>
++#include <asm/uaccess.h>
++
++
++/*
++ * recalculate the context's scheduling tokens
++ *
++ * ret > 0 : number of tokens available
++ * ret = 0 : context is paused
++ * ret < 0 : number of jiffies until new tokens arrive
++ *
++ */
++int vx_tokens_recalc(struct vx_info *vxi)
++{
++	long delta, tokens = 0;
++
++	if (vx_info_flags(vxi, VXF_SCHED_PAUSE, 0))
++		/* we are paused */
++		return 0;
++
++	delta = jiffies - vxi->sched.jiffies;
++
++	if (delta >= vxi->sched.interval) {
++		/* lockdown scheduler info */
++		spin_lock(&vxi->sched.tokens_lock);
++
++		/* calc integral token part */
++		delta = jiffies - vxi->sched.jiffies;
++		tokens = delta / vxi->sched.interval;
++		delta = tokens * vxi->sched.interval;
++		tokens *= vxi->sched.fill_rate;
++
++		atomic_add(tokens, &vxi->sched.tokens);
++		vxi->sched.jiffies += delta;
++		tokens = atomic_read(&vxi->sched.tokens);
++
++		if (tokens > vxi->sched.tokens_max) {
++			tokens = vxi->sched.tokens_max;
++			atomic_set(&vxi->sched.tokens, tokens);
++		}
++		spin_unlock(&vxi->sched.tokens_lock);
++	} else {
++		/* no new tokens */
++		tokens = vx_tokens_avail(vxi);
++		if (tokens <= 0)
++			vxi->vx_state |= VXS_ONHOLD;
++		if (tokens < vxi->sched.tokens_min) {
++			/* enough tokens will be available in */
++			if (vxi->sched.tokens_min == 0)
++				return delta - vxi->sched.interval;
++			return delta - vxi->sched.interval *
++				vxi->sched.tokens_min / vxi->sched.fill_rate;
++		}
++	}
++
++	/* we have some tokens left */
++	if (vx_info_state(vxi, VXS_ONHOLD) &&
++		(tokens >= vxi->sched.tokens_min))
++		vxi->vx_state &= ~VXS_ONHOLD;
++	if (vx_info_state(vxi, VXS_ONHOLD))
++		tokens -= vxi->sched.tokens_min;
++
++	return tokens;
++}
++
++/*
++ * effective_prio - return the priority that is based on the static
++ * priority but is modified by bonuses/penalties.
++ *
++ * We scale the actual sleep average [0 .... MAX_SLEEP_AVG]
++ * into a -4 ... 0 ... +4 bonus/penalty range.
++ *
++ * Additionally, we scale another amount based on the number of
++ * CPU tokens currently held by the context, if the process is
++ * part of a context (and the appropriate SCHED flag is set).
++ * This ranges from -5 ... 0 ... +15, quadratically.
++ *
++ * So, the total bonus is -9 .. 0 .. +19
++ * We use ~50% of the full 0...39 priority range so that:
++ *
++ * 1) nice +19 interactive tasks do not preempt nice 0 CPU hogs.
++ * 2) nice -20 CPU hogs do not get preempted by nice 0 tasks.
++ *    unless that context is far exceeding its CPU allocation.
++ *
++ * Both properties are important to certain workloads.
++ */
++int vx_effective_vavavoom(struct vx_info *vxi, int max_prio)
++{
++	int vavavoom, max;
++
++	/* lots of tokens = lots of vavavoom
++	 *      no tokens = no vavavoom      */
++	if ((vavavoom = atomic_read(&vxi->sched.tokens)) >= 0) {
++		max = vxi->sched.tokens_max;
++		vavavoom = max - vavavoom;
++		max = max * max;
++		vavavoom = max_prio * VAVAVOOM_RATIO / 100
++			* (vavavoom*vavavoom - (max >> 2)) / max;
++	} else
++		vavavoom = 0;
++
++	vxi->sched.vavavoom = vavavoom;
++	return vavavoom;
++}
++
++
++int vc_set_sched_v2(uint32_t xid, void __user *data)
++{
++	struct vcmd_set_sched_v2 vc_data;
++	struct vx_info *vxi;
++
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	vxi = locate_vx_info(xid);
++	if (!vxi)
++		return -EINVAL;
++
++	spin_lock(&vxi->sched.tokens_lock);
++
++	if (vc_data.interval != SCHED_KEEP)
++		vxi->sched.interval = vc_data.interval;
++	if (vc_data.fill_rate != SCHED_KEEP)
++		vxi->sched.fill_rate = vc_data.fill_rate;
++	if (vc_data.tokens_min != SCHED_KEEP)
++		vxi->sched.tokens_min = vc_data.tokens_min;
++	if (vc_data.tokens_max != SCHED_KEEP)
++		vxi->sched.tokens_max = vc_data.tokens_max;
++	if (vc_data.tokens != SCHED_KEEP)
++		atomic_set(&vxi->sched.tokens, vc_data.tokens);
++
++	/* Sanity check the resultant values */
++	if (vxi->sched.fill_rate <= 0)
++		vxi->sched.fill_rate = 1;
++	if (vxi->sched.interval <= 0)
++		vxi->sched.interval = HZ;
++	if (vxi->sched.tokens_max == 0)
++		vxi->sched.tokens_max = 1;
++	if (atomic_read(&vxi->sched.tokens) > vxi->sched.tokens_max)
++		atomic_set(&vxi->sched.tokens, vxi->sched.tokens_max);
++	if (vxi->sched.tokens_min > vxi->sched.tokens_max)
++		vxi->sched.tokens_min = vxi->sched.tokens_max;
++
++	spin_unlock(&vxi->sched.tokens_lock);
++	put_vx_info(vxi);
++	return 0;
++}
++
++
++int vc_set_sched(uint32_t xid, void __user *data)
++{
++	struct vcmd_set_sched_v3 vc_data;
++	struct vx_info *vxi;
++	unsigned int set_mask;
++
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	vxi = locate_vx_info(xid);
++	if (!vxi)
++		return -EINVAL;
++
++	set_mask = vc_data.set_mask;
++
++	spin_lock(&vxi->sched.tokens_lock);
++
++	if (set_mask & VXSM_FILL_RATE)
++		vxi->sched.fill_rate = vc_data.fill_rate;
++	if (set_mask & VXSM_INTERVAL)
++		vxi->sched.interval = vc_data.interval;
++	if (set_mask & VXSM_TOKENS)
++		atomic_set(&vxi->sched.tokens, vc_data.tokens);
++	if (set_mask & VXSM_TOKENS_MIN)
++		vxi->sched.tokens_min = vc_data.tokens_min;
++	if (set_mask & VXSM_TOKENS_MAX)
++		vxi->sched.tokens_max = vc_data.tokens_max;
++	if (set_mask & VXSM_PRIO_BIAS)
++		vxi->sched.priority_bias = vc_data.priority_bias;
++
++	/* Sanity check the resultant values */
++	if (vxi->sched.fill_rate <= 0)
++		vxi->sched.fill_rate = 1;
++	if (vxi->sched.interval <= 0)
++		vxi->sched.interval = HZ;
++	if (vxi->sched.tokens_max == 0)
++		vxi->sched.tokens_max = 1;
++	if (atomic_read(&vxi->sched.tokens) > vxi->sched.tokens_max)
++		atomic_set(&vxi->sched.tokens, vxi->sched.tokens_max);
++	if (vxi->sched.tokens_min > vxi->sched.tokens_max)
++		vxi->sched.tokens_min = vxi->sched.tokens_max;
++	if (vxi->sched.priority_bias > MAX_PRIO_BIAS)
++		vxi->sched.priority_bias = MAX_PRIO_BIAS;
++	if (vxi->sched.priority_bias < MIN_PRIO_BIAS)
++		vxi->sched.priority_bias = MIN_PRIO_BIAS;
++
++	spin_unlock(&vxi->sched.tokens_lock);
++	put_vx_info(vxi);
++	return 0;
++}
++
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/sched_init.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/sched_init.h
+@@ -0,0 +1,30 @@
++
++static inline void vx_info_init_sched(struct _vx_sched *sched)
++{
++	int i;
++
++	/* scheduling; hard code starting values as constants */
++	sched->fill_rate	= 1;
++	sched->interval		= 4;
++	sched->tokens_min	= HZ >> 4;
++	sched->tokens_max	= HZ >> 1;
++	sched->jiffies		= jiffies;
++	sched->tokens_lock	= SPIN_LOCK_UNLOCKED;
++
++	atomic_set(&sched->tokens, HZ >> 2);
++	sched->cpus_allowed	= CPU_MASK_ALL;
++	sched->priority_bias	= 0;
++	sched->vavavoom		= 0;
++
++	for_each_cpu(i) {
++		sched->cpu[i].user_ticks	= 0;
++		sched->cpu[i].sys_ticks		= 0;
++		sched->cpu[i].hold_ticks	= 0;
++	}
++}
++
++static inline void vx_info_exit_sched(struct _vx_sched *sched)
++{
++	return;
++}
++
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/sched_proc.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/sched_proc.h
+@@ -0,0 +1,40 @@
++#ifndef _VX_SCHED_PROC_H
++#define _VX_SCHED_PROC_H
++
++
++static inline int vx_info_proc_sched(struct _vx_sched *sched, char *buffer)
++{
++	int length = 0;
++	int i;
++
++	length += sprintf(buffer,
++		"Token:\t\t%8d\n"
++		"FillRate:\t%8d\n"
++		"Interval:\t%8d\n"
++		"TokensMin:\t%8d\n"
++		"TokensMax:\t%8d\n"
++		"PrioBias:\t%8d\n"
++		"VaVaVoom:\t%8d\n"
++		,atomic_read(&sched->tokens)
++		,sched->fill_rate
++		,sched->interval
++		,sched->tokens_min
++		,sched->tokens_max
++		,sched->priority_bias
++		,sched->vavavoom
++		);
++
++	for_each_online_cpu(i) {
++		length += sprintf(buffer + length,
++			"cpu %d: %lld %lld %lld\n"
++			,i
++			,(long long)sched->cpu[i].user_ticks
++			,(long long)sched->cpu[i].sys_ticks
++			,(long long)sched->cpu[i].hold_ticks
++			);
++	}
++
++	return length;
++}
++
++#endif	/* _VX_SCHED_PROC_H */
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/signal.c
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/signal.c
+@@ -0,0 +1,119 @@
++/*
++ *  linux/kernel/vserver/signal.c
++ *
++ *  Virtual Server: Signal Support
++ *
++ *  Copyright (C) 2003-2005  Herbert Pötzl
++ *
++ *  V0.01  broken out from vcontext V0.05
++ *
++ */
++
++#include <linux/config.h>
++#include <linux/sched.h>
++
++#include <asm/errno.h>
++#include <asm/uaccess.h>
++
++#include <linux/vs_context.h>
++#include <linux/vserver/signal_cmd.h>
++
++
++int vc_ctx_kill(uint32_t id, void __user *data)
++{
++	int retval, count=0;
++	struct vcmd_ctx_kill_v0 vc_data;
++	struct task_struct *p;
++	struct vx_info *vxi;
++	unsigned long priv = 0;
++
++	if (!vx_check(0, VX_ADMIN))
++		return -ENOSYS;
++	if (copy_from_user (&vc_data, data, sizeof(vc_data)))
++		return -EFAULT;
++
++	vxi = locate_vx_info(id);
++	if (!vxi)
++		return -ESRCH;
++
++	retval = -ESRCH;
++	read_lock(&tasklist_lock);
++	switch (vc_data.pid) {
++	case  0:
++		priv = 1;
++	case -1:
++		for_each_process(p) {
++			int err = 0;
++
++			if (vx_task_xid(p) != id || p->pid <= 1 ||
++				(vc_data.pid && vxi->vx_initpid == p->pid))
++				continue;
++
++			err = group_send_sig_info(vc_data.sig, (void*)priv, p);
++			++count;
++			if (err != -EPERM)
++				retval = err;
++		}
++		break;
++
++	case 1:
++		if (vxi->vx_initpid) {
++			vc_data.pid = vxi->vx_initpid;
++			priv = 1;
++		}
++		/* fallthrough */
++	default:
++		p = find_task_by_real_pid(vc_data.pid);
++		if (p) {
++			if ((id == -1) || (vx_task_xid(p) == id))
++				retval = group_send_sig_info(vc_data.sig,
++					(void*)priv, p);
++		}
++		break;
++	}
++	read_unlock(&tasklist_lock);
++	put_vx_info(vxi);
++	return retval;
++}
++
++
++static int __wait_exit(struct vx_info *vxi)
++{
++	DECLARE_WAITQUEUE(wait, current);
++	int ret = 0;
++
++	add_wait_queue(&vxi->vx_wait, &wait);
++	set_current_state(TASK_INTERRUPTIBLE);
++
++wait:
++	if (vx_info_state(vxi, VXS_SHUTDOWN|VXS_HASHED) == VXS_SHUTDOWN)
++		goto out;
++	if (signal_pending(current)) {
++		ret = -ERESTARTSYS;
++		goto out;
++	}
++	schedule();
++	goto wait;
++
++out:
++	set_current_state(TASK_RUNNING);
++	remove_wait_queue(&vxi->vx_wait, &wait);
++	return ret;
++}
++
++
++
++int vc_wait_exit(uint32_t id, void __user *data)
++{
++	struct vx_info *vxi;
++	int ret;
++
++	vxi = locate_vx_info(id);
++	if (!vxi)
++		return -ESRCH;
++
++	ret = __wait_exit(vxi);
++	put_vx_info(vxi);
++	return ret;
++}
++
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/switch.c
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/switch.c
+@@ -0,0 +1,260 @@
++/*
++ *  linux/kernel/vserver/switch.c
++ *
++ *  Virtual Server: Syscall Switch
++ *
++ *  Copyright (C) 2003-2005  Herbert Pötzl
++ *
++ *  V0.01  syscall switch
++ *  V0.02  added signal to context
++ *  V0.03  added rlimit functions
++ *  V0.04  added iattr, task/xid functions
++ *  V0.05  added debug/history stuff
++ *  V0.06  added compat32 layer
++ *
++ */
++
++#include <linux/config.h>
++#include <linux/linkage.h>
++#include <linux/sched.h>
++#include <linux/compat.h>
++#include <asm/errno.h>
++
++#include <linux/vserver/network.h>
++#include <linux/vserver/switch.h>
++#include <linux/vserver/debug.h>
++
++
++static inline
++int vc_get_version(uint32_t id)
++{
++#ifdef	CONFIG_VSERVER_LEGACY_VERSION
++	if (id == 63)
++		return VCI_LEGACY_VERSION;
++#endif
++	return VCI_VERSION;
++}
++
++#include <linux/vserver/context_cmd.h>
++#include <linux/vserver/cvirt_cmd.h>
++#include <linux/vserver/limit_cmd.h>
++#include <linux/vserver/network_cmd.h>
++#include <linux/vserver/sched_cmd.h>
++#include <linux/vserver/debug_cmd.h>
++#include <linux/vserver/inode_cmd.h>
++#include <linux/vserver/dlimit_cmd.h>
++#include <linux/vserver/signal_cmd.h>
++#include <linux/vserver/namespace_cmd.h>
++
++#include <linux/vserver/legacy.h>
++#include <linux/vserver/inode.h>
++#include <linux/vserver/dlimit.h>
++
++
++#ifdef	CONFIG_COMPAT
++#define __COMPAT(name, id, data, compat)	\
++	(compat) ? name ## _x32 (id, data) : name (id, data)
++#else
++#define __COMPAT(name, id, data, compat)	\
++	name (id, data)
++#endif
++
++
++static inline
++long do_vserver(uint32_t cmd, uint32_t id, void __user *data, int compat)
++{
++	vxdprintk(VXD_CBIT(switch, 0),
++		"vc: VCMD_%02d_%d[%d], %d,%p,%d",
++		VC_CATEGORY(cmd), VC_COMMAND(cmd),
++		VC_VERSION(cmd), id, data, compat);
++
++#ifdef	CONFIG_VSERVER_LEGACY
++	if (!capable(CAP_CONTEXT) &&
++		/* dirty hack for capremove */
++		!(cmd==VCMD_new_s_context && id==-2))
++		return -EPERM;
++#else
++	if (!capable(CAP_CONTEXT))
++		return -EPERM;
++#endif
++
++	switch (cmd) {
++	case VCMD_get_version:
++		return vc_get_version(id);
++
++	case VCMD_dump_history:
++#ifdef	CONFIG_VSERVER_HISTORY
++		return vc_dump_history(id);
++#else
++		return -ENOSYS;
++#endif
++
++#ifdef	CONFIG_VSERVER_LEGACY
++	case VCMD_new_s_context:
++		return vc_new_s_context(id, data);
++#endif
++#ifdef	CONFIG_VSERVER_LEGACYNET
++	case VCMD_set_ipv4root:
++		return vc_set_ipv4root(id, data);
++#endif
++
++	case VCMD_task_xid:
++		return vc_task_xid(id, data);
++	case VCMD_vx_info:
++		return vc_vx_info(id, data);
++
++	case VCMD_task_nid:
++		return vc_task_nid(id, data);
++	case VCMD_nx_info:
++		return vc_nx_info(id, data);
++
++	case VCMD_set_namespace:
++		return vc_set_namespace(id, data);
++	case VCMD_cleanup_namespace:
++		return vc_cleanup_namespace(id, data);
++	}
++
++	/* those are allowed while in setup too */
++	if (!vx_check(0, VX_ADMIN|VX_WATCH) &&
++		!vx_flags(VXF_STATE_SETUP,0))
++		return -EPERM;
++
++#ifdef	CONFIG_VSERVER_LEGACY
++	switch (cmd) {
++	case VCMD_set_cflags:
++	case VCMD_set_ccaps:
++		if (vx_check(0, VX_WATCH))
++			return 0;
++	}
++#endif
++
++	switch (cmd) {
++	case VCMD_get_rlimit:
++		return vc_get_rlimit(id, data);
++	case VCMD_set_rlimit:
++		return vc_set_rlimit(id, data);
++	case VCMD_get_rlimit_mask:
++		return vc_get_rlimit_mask(id, data);
++
++	case VCMD_get_vhi_name:
++		return vc_get_vhi_name(id, data);
++	case VCMD_set_vhi_name:
++		return vc_set_vhi_name(id, data);
++
++	case VCMD_set_cflags:
++		return vc_set_cflags(id, data);
++	case VCMD_get_cflags:
++		return vc_get_cflags(id, data);
++
++	case VCMD_set_ccaps:
++		return vc_set_ccaps(id, data);
++	case VCMD_get_ccaps:
++		return vc_get_ccaps(id, data);
++
++	case VCMD_set_nflags:
++		return vc_set_nflags(id, data);
++	case VCMD_get_nflags:
++		return vc_get_nflags(id, data);
++
++	case VCMD_set_ncaps:
++		return vc_set_ncaps(id, data);
++	case VCMD_get_ncaps:
++		return vc_get_ncaps(id, data);
++
++	case VCMD_set_sched_v2:
++		return vc_set_sched_v2(id, data);
++	/* this is version 3 */
++	case VCMD_set_sched:
++		return vc_set_sched(id, data);
++
++	case VCMD_add_dlimit:
++		return __COMPAT(vc_add_dlimit, id, data, compat);
++	case VCMD_rem_dlimit:
++		return __COMPAT(vc_rem_dlimit, id, data, compat);
++	case VCMD_set_dlimit:
++		return __COMPAT(vc_set_dlimit, id, data, compat);
++	case VCMD_get_dlimit:
++		return __COMPAT(vc_get_dlimit, id, data, compat);
++	}
++
++	/* below here only with VX_ADMIN */
++	if (!vx_check(0, VX_ADMIN|VX_WATCH))
++		return -EPERM;
++
++	switch (cmd) {
++	case VCMD_ctx_kill:
++		return vc_ctx_kill(id, data);
++
++	case VCMD_wait_exit:
++		return vc_wait_exit(id, data);
++
++	case VCMD_create_context:
++#ifdef	CONFIG_VSERVER_LEGACY
++		return vc_ctx_create(id, NULL);
++#else
++		return -ENOSYS;
++#endif
++
++	case VCMD_get_iattr:
++		return __COMPAT(vc_get_iattr, id, data, compat);
++	case VCMD_set_iattr:
++		return __COMPAT(vc_set_iattr, id, data, compat);
++
++	case VCMD_enter_namespace:
++		return vc_enter_namespace(id, data);
++
++	case VCMD_ctx_create_v0:
++#ifdef	CONFIG_VSERVER_LEGACY
++		if (id == 1) {
++			current->xid = 1;
++			return 1;
++		}
++#endif
++		return vc_ctx_create(id, NULL);
++	case VCMD_ctx_create:
++		return vc_ctx_create(id, data);
++	case VCMD_ctx_migrate:
++		return vc_ctx_migrate(id, data);
++
++	case VCMD_net_create_v0:
++		return vc_net_create(id, NULL);
++	case VCMD_net_create:
++		return vc_net_create(id, data);
++	case VCMD_net_migrate:
++		return vc_net_migrate(id, data);
++	case VCMD_net_add:
++		return vc_net_add(id, data);
++	case VCMD_net_remove:
++		return vc_net_remove(id, data);
++
++	}
++	return -ENOSYS;
++}
++
++extern asmlinkage long
++sys_vserver(uint32_t cmd, uint32_t id, void __user *data)
++{
++	long ret = do_vserver(cmd, id, data, 0);
++
++	vxdprintk(VXD_CBIT(switch, 1),
++		"vc: VCMD_%02d_%d[%d] = %08lx(%ld)",
++		VC_CATEGORY(cmd), VC_COMMAND(cmd),
++		VC_VERSION(cmd), ret, ret);
++	return ret;
++}
++
++#ifdef	CONFIG_COMPAT
++
++extern asmlinkage long
++sys32_vserver(uint32_t cmd, uint32_t id, void __user *data)
++{
++	long ret = do_vserver(cmd, id, data, 1);
++
++	vxdprintk(VXD_CBIT(switch, 1),
++		"vc: VCMD_%02d_%d[%d] = %08lx(%ld)",
++		VC_CATEGORY(cmd), VC_COMMAND(cmd),
++		VC_VERSION(cmd), ret, ret);
++	return ret;
++}
++
++#endif	/* CONFIG_COMPAT */
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/sysctl.c
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/sysctl.c
+@@ -0,0 +1,217 @@
++/*
++ *  linux/kernel/sysctl.c
++ *
++ *  Virtual Context Support
++ *
++ *  Copyright (C) 2004-2005  Herbert Pötzl
++ *
++ *  V0.01  basic structure
++ *
++ */
++
++#include <linux/config.h>
++#include <linux/errno.h>
++#include <linux/module.h>
++#include <linux/types.h>
++#include <linux/ctype.h>
++#include <linux/sysctl.h>
++#include <linux/parser.h>
++#include <linux/fs.h>
++
++#include <asm/uaccess.h>
++#include <asm/unistd.h>
++
++
++#define CTL_VSERVER	4242    /* unused? */
++
++enum {
++	CTL_DEBUG_ERROR = 0,
++	CTL_DEBUG_SWITCH = 1,
++	CTL_DEBUG_XID,
++	CTL_DEBUG_NID,
++	CTL_DEBUG_NET,
++	CTL_DEBUG_LIMIT,
++	CTL_DEBUG_DLIM,
++	CTL_DEBUG_CVIRT,
++	CTL_DEBUG_MISC,
++};
++
++
++unsigned int vx_debug_switch = 0;
++unsigned int vx_debug_xid = 0;
++unsigned int vx_debug_nid = 0;
++unsigned int vx_debug_net = 0;
++unsigned int vx_debug_limit = 0;
++unsigned int vx_debug_dlim = 0;
++unsigned int vx_debug_cvirt = 0;
++unsigned int vx_debug_misc = 0;
++
++
++static struct ctl_table_header *vserver_table_header;
++static ctl_table vserver_table[];
++
++
++void vserver_register_sysctl(void)
++{
++	if (!vserver_table_header) {
++		vserver_table_header = register_sysctl_table(vserver_table, 1);
++	}
++
++}
++
++void vserver_unregister_sysctl(void)
++{
++	if (vserver_table_header) {
++		unregister_sysctl_table(vserver_table_header);
++		vserver_table_header = NULL;
++	}
++}
++
++
++static int proc_dodebug(ctl_table *table, int write,
++	struct file *filp, void __user *buffer, size_t *lenp, loff_t *ppos)
++{
++	char		tmpbuf[20], *p, c;
++	unsigned int	value;
++	size_t		left, len;
++
++	if ((*ppos && !write) || !*lenp) {
++		*lenp = 0;
++		return 0;
++	}
++
++	left = *lenp;
++
++	if (write) {
++		if (!access_ok(VERIFY_READ, buffer, left))
++			return -EFAULT;
++		p = (char *) buffer;
++		while (left && __get_user(c, p) >= 0 && isspace(c))
++			left--, p++;
++		if (!left)
++			goto done;
++
++		if (left > sizeof(tmpbuf) - 1)
++			return -EINVAL;
++		if (copy_from_user(tmpbuf, p, left))
++			return -EFAULT;
++		tmpbuf[left] = '\0';
++
++		for (p = tmpbuf, value = 0; '0' <= *p && *p <= '9'; p++, left--)
++			value = 10 * value + (*p - '0');
++		if (*p && !isspace(*p))
++			return -EINVAL;
++		while (left && isspace(*p))
++			left--, p++;
++		*(unsigned int *) table->data = value;
++	} else {
++		if (!access_ok(VERIFY_WRITE, buffer, left))
++			return -EFAULT;
++		len = sprintf(tmpbuf, "%d", *(unsigned int *) table->data);
++		if (len > left)
++			len = left;
++		if (__copy_to_user(buffer, tmpbuf, len))
++			return -EFAULT;
++		if ((left -= len) > 0) {
++			if (put_user('\n', (char *)buffer + len))
++				return -EFAULT;
++			left--;
++		}
++	}
++
++done:
++	*lenp -= left;
++	*ppos += *lenp;
++	return 0;
++}
++
++
++
++static ctl_table debug_table[] = {
++	{
++		.ctl_name	= CTL_DEBUG_SWITCH,
++		.procname	= "debug_switch",
++		.data		= &vx_debug_switch,
++		.maxlen		= sizeof(int),
++		.mode		= 0644,
++		.proc_handler	= &proc_dodebug
++	},
++	{
++		.ctl_name	= CTL_DEBUG_XID,
++		.procname	= "debug_xid",
++		.data		= &vx_debug_xid,
++		.maxlen		= sizeof(int),
++		.mode		= 0644,
++		.proc_handler	= &proc_dodebug
++	},
++	{
++		.ctl_name	= CTL_DEBUG_NID,
++		.procname	= "debug_nid",
++		.data		= &vx_debug_nid,
++		.maxlen		= sizeof(int),
++		.mode		= 0644,
++		.proc_handler	= &proc_dodebug
++	},
++	{
++		.ctl_name	= CTL_DEBUG_NET,
++		.procname	= "debug_net",
++		.data		= &vx_debug_net,
++		.maxlen		= sizeof(int),
++		.mode		= 0644,
++		.proc_handler	= &proc_dodebug
++	},
++	{
++		.ctl_name	= CTL_DEBUG_LIMIT,
++		.procname	= "debug_limit",
++		.data		= &vx_debug_limit,
++		.maxlen		= sizeof(int),
++		.mode		= 0644,
++		.proc_handler	= &proc_dodebug
++	},
++	{
++		.ctl_name	= CTL_DEBUG_DLIM,
++		.procname	= "debug_dlim",
++		.data		= &vx_debug_dlim,
++		.maxlen		= sizeof(int),
++		.mode		= 0644,
++		.proc_handler	= &proc_dodebug
++	},
++	{
++		.ctl_name	= CTL_DEBUG_CVIRT,
++		.procname	= "debug_cvirt",
++		.data		= &vx_debug_cvirt,
++		.maxlen		= sizeof(int),
++		.mode		= 0644,
++		.proc_handler	= &proc_dodebug
++	},
++	{
++		.ctl_name	= CTL_DEBUG_MISC,
++		.procname	= "debug_misc",
++		.data		= &vx_debug_misc,
++		.maxlen		= sizeof(int),
++		.mode		= 0644,
++		.proc_handler	= &proc_dodebug
++	},
++	{ .ctl_name = 0 }
++};
++
++static ctl_table vserver_table[] = {
++	{
++		.ctl_name	= CTL_VSERVER,
++		.procname	= "vserver",
++		.mode		= 0555,
++		.child		= debug_table
++	},
++	{ .ctl_name = 0 }
++};
++
++
++EXPORT_SYMBOL_GPL(vx_debug_switch);
++EXPORT_SYMBOL_GPL(vx_debug_xid);
++EXPORT_SYMBOL_GPL(vx_debug_nid);
++EXPORT_SYMBOL_GPL(vx_debug_net);
++EXPORT_SYMBOL_GPL(vx_debug_limit);
++EXPORT_SYMBOL_GPL(vx_debug_dlim);
++EXPORT_SYMBOL_GPL(vx_debug_cvirt);
++EXPORT_SYMBOL_GPL(vx_debug_misc);
++
+Index: vserver-sources-2.0.1_2.6.15/kernel/vserver/vci_config.h
+===================================================================
+--- /dev/null
++++ vserver-sources-2.0.1_2.6.15/kernel/vserver/vci_config.h
+@@ -0,0 +1,70 @@
++
++enum {
++	VCI_KCBIT_LEGACY = 1,
++	VCI_KCBIT_LEGACYNET,
++	VCI_KCBIT_NGNET,
++
++	VCI_KCBIT_PROC_SECURE,
++	VCI_KCBIT_HARDCPU,
++	VCI_KCBIT_HARDCPU_IDLE,
++
++	VCI_KCBIT_LEGACY_VERSION,
++
++	VCI_KCBIT_DEBUG = 16,
++	VCI_KCBIT_HISTORY = 20,
++	VCI_KCBIT_TAGXID = 24,
++};
++
++
++static inline uint32_t vci_kernel_config(void)
++{
++	return
++	/* various legacy options */
++#ifdef	CONFIG_VSERVER_LEGACY
++	(1 << VCI_KCBIT_LEGACY) |
++#endif
++#ifdef	CONFIG_VSERVER_LEGACYNET
++	(1 << VCI_KCBIT_LEGACYNET) |
++#endif
++#ifdef	CONFIG_VSERVER_LEGACY_VERSION
++	(1 << VCI_KCBIT_LEGACY_VERSION) |
++#endif
++
++	/* configured features */
++#ifdef	CONFIG_VSERVER_PROC_SECURE
++	(1 << VCI_KCBIT_PROC_SECURE) |
++#endif
++#ifdef	CONFIG_VSERVER_HARDCPU
++	(1 << VCI_KCBIT_HARDCPU) |
++#endif
++#ifdef	CONFIG_VSERVER_HARDCPU_IDLE
++	(1 << VCI_KCBIT_HARDCPU_IDLE) |
++#endif
++
++	/* debug options */
++#ifdef	CONFIG_VSERVER_DEBUG
++	(1 << VCI_KCBIT_DEBUG) |
++#endif
++#ifdef	CONFIG_VSERVER_HISTORY
++	(1 << VCI_KCBIT_HISTORY) |
++#endif
++
++	/* inode xid tagging */
++#if	defined(CONFIG_INOXID_NONE)
++	(0 << VCI_KCBIT_TAGXID) |
++#elif	defined(CONFIG_INOXID_UID16)
++	(1 << VCI_KCBIT_TAGXID) |
++#elif	defined(CONFIG_INOXID_GID16)
++	(2 << VCI_KCBIT_TAGXID) |
++#elif	defined(CONFIG_INOXID_UGID24)
++	(3 << VCI_KCBIT_TAGXID) |
++#elif	defined(CONFIG_INOXID_INTERN)
++	(4 << VCI_KCBIT_TAGXID) |
++#elif	defined(CONFIG_INOXID_RUNTIME)
++	(5 << VCI_KCBIT_TAGXID) |
++#else
++	(7 << VCI_KCBIT_TAGXID) |
++#endif
++	0;
++}
++
+Index: vserver-sources-2.0.1_2.6.15/mm/fremap.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/mm/fremap.c
++++ vserver-sources-2.0.1_2.6.15/mm/fremap.c
+@@ -15,6 +15,7 @@
+ #include <linux/rmap.h>
+ #include <linux/module.h>
+ #include <linux/syscalls.h>
++#include <linux/vs_memory.h>
+ 
+ #include <asm/mmu_context.h>
+ #include <asm/cacheflush.h>
+@@ -35,6 +36,7 @@ static int zap_pte(struct mm_struct *mm,
+ 				set_page_dirty(page);
+ 			page_remove_rmap(page);
+ 			page_cache_release(page);
++			// dec_mm_counter(mm, file_rss);
+ 		}
+ 	} else {
+ 		if (!pte_file(pte))
+@@ -74,6 +76,8 @@ int install_page(struct mm_struct *mm, s
+ 	err = -ENOMEM;
+ 	if (page_mapcount(page) > INT_MAX/2)
+ 		goto unlock;
++	if (!vx_rsspages_avail(mm, 1))
++		goto unlock;
+ 
+ 	if (pte_none(*pte) || !zap_pte(mm, vma, addr, pte))
+ 		inc_mm_counter(mm, file_rss);
+Index: vserver-sources-2.0.1_2.6.15/mm/hugetlb.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/mm/hugetlb.c
++++ vserver-sources-2.0.1_2.6.15/mm/hugetlb.c
+@@ -15,6 +15,7 @@
+ #include <asm/pgtable.h>
+ 
+ #include <linux/hugetlb.h>
++#include <linux/vs_memory.h>
+ 
+ const unsigned long hugetlb_zero = 0, hugetlb_infinity = ~0UL;
+ static unsigned long nr_huge_pages, free_huge_pages;
+Index: vserver-sources-2.0.1_2.6.15/mm/memory.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/mm/memory.c
++++ vserver-sources-2.0.1_2.6.15/mm/memory.c
+@@ -1870,6 +1870,10 @@ static int do_swap_page(struct mm_struct
+ 		grab_swap_token();
+ 	}
+ 
++	if (!vx_rsspages_avail(mm, 1)) {
++		ret = VM_FAULT_OOM;
++		goto out;
++	}
+ 	mark_page_accessed(page);
+ 	lock_page(page);
+ 
+@@ -1941,6 +1945,8 @@ static int do_anonymous_page(struct mm_s
+ 		/* Allocate our own private page. */
+ 		pte_unmap(page_table);
+ 
++		if (!vx_rsspages_avail(mm, 1))
++			goto oom;
+ 		if (unlikely(anon_vma_prepare(vma)))
+ 			goto oom;
+ 		page = alloc_zeroed_user_highpage(vma, address);
+@@ -2020,6 +2026,9 @@ static int do_no_page(struct mm_struct *
+ 		smp_rmb(); /* serializes i_size against truncate_count */
+ 	}
+ retry:
++	/* FIXME: is that check useful here? */
++	if (!vx_rsspages_avail(mm, 1))
++		return VM_FAULT_OOM;
+ 	new_page = vma->vm_ops->nopage(vma, address & PAGE_MASK, &ret);
+ 	/*
+ 	 * No smp_rmb is needed here as long as there's a full
+Index: vserver-sources-2.0.1_2.6.15/mm/mlock.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/mm/mlock.c
++++ vserver-sources-2.0.1_2.6.15/mm/mlock.c
+@@ -9,6 +9,7 @@
+ #include <linux/mm.h>
+ #include <linux/mempolicy.h>
+ #include <linux/syscalls.h>
++#include <linux/vs_memory.h>
+ 
+ 
+ static int mlock_fixup(struct vm_area_struct *vma, struct vm_area_struct **prev,
+@@ -64,7 +65,7 @@ success:
+ 			ret = make_pages_present(start, end);
+ 	}
+ 
+-	vma->vm_mm->locked_vm -= pages;
++	vx_vmlocked_sub(vma->vm_mm, pages);
+ out:
+ 	if (ret == -ENOMEM)
+ 		ret = -EAGAIN;
+@@ -122,7 +123,7 @@ static int do_mlock(unsigned long start,
+ 
+ asmlinkage long sys_mlock(unsigned long start, size_t len)
+ {
+-	unsigned long locked;
++	unsigned long locked, grow;
+ 	unsigned long lock_limit;
+ 	int error = -ENOMEM;
+ 
+@@ -133,8 +134,10 @@ asmlinkage long sys_mlock(unsigned long 
+ 	len = PAGE_ALIGN(len + (start & ~PAGE_MASK));
+ 	start &= PAGE_MASK;
+ 
+-	locked = len >> PAGE_SHIFT;
+-	locked += current->mm->locked_vm;
++	grow = len >> PAGE_SHIFT;
++	if (!vx_vmlocked_avail(current->mm, grow))
++		goto out;
++	locked = current->mm->locked_vm + grow;
+ 
+ 	lock_limit = current->signal->rlim[RLIMIT_MEMLOCK].rlim_cur;
+ 	lock_limit >>= PAGE_SHIFT;
+@@ -142,6 +145,7 @@ asmlinkage long sys_mlock(unsigned long 
+ 	/* check against resource limits */
+ 	if ((locked <= lock_limit) || capable(CAP_IPC_LOCK))
+ 		error = do_mlock(start, len, 1);
++out:
+ 	up_write(&current->mm->mmap_sem);
+ 	return error;
+ }
+@@ -201,6 +205,8 @@ asmlinkage long sys_mlockall(int flags)
+ 	lock_limit >>= PAGE_SHIFT;
+ 
+ 	ret = -ENOMEM;
++	if (!vx_vmlocked_avail(current->mm, current->mm->total_vm))
++		goto out;
+ 	if (!(flags & MCL_CURRENT) || (current->mm->total_vm <= lock_limit) ||
+ 	    capable(CAP_IPC_LOCK))
+ 		ret = do_mlockall(flags);
+Index: vserver-sources-2.0.1_2.6.15/mm/mmap.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/mm/mmap.c
++++ vserver-sources-2.0.1_2.6.15/mm/mmap.c
+@@ -1115,10 +1115,10 @@ munmap_back:
+ 		kmem_cache_free(vm_area_cachep, vma);
+ 	}
+ out:	
+-	mm->total_vm += len >> PAGE_SHIFT;
++	vx_vmpages_add(mm, len >> PAGE_SHIFT);
+ 	vm_stat_account(mm, vm_flags, file, len >> PAGE_SHIFT);
+ 	if (vm_flags & VM_LOCKED) {
+-		mm->locked_vm += len >> PAGE_SHIFT;
++		vx_vmlocked_add(mm, len >> PAGE_SHIFT);
+ 		make_pages_present(addr, addr + len);
+ 	}
+ 	if (flags & MAP_POPULATE) {
+@@ -1478,9 +1478,9 @@ static int acct_stack_growth(struct vm_a
+ 		return -ENOMEM;
+ 
+ 	/* Ok, everything looks good - let it rip */
+-	mm->total_vm += grow;
++	vx_vmpages_add(mm, grow);
+ 	if (vma->vm_flags & VM_LOCKED)
+-		mm->locked_vm += grow;
++		vx_vmlocked_add(mm, grow);
+ 	vm_stat_account(mm, vma->vm_flags, vma->vm_file, grow);
+ 	return 0;
+ }
+@@ -1633,9 +1633,9 @@ static void remove_vma_list(struct mm_st
+ 	do {
+ 		long nrpages = vma_pages(vma);
+ 
+-		mm->total_vm -= nrpages;
++		vx_vmpages_sub(mm, nrpages);
+ 		if (vma->vm_flags & VM_LOCKED)
+-			mm->locked_vm -= nrpages;
++			vx_vmlocked_sub(mm, nrpages);
+ 		vm_stat_account(mm, vma->vm_flags, vma->vm_file, -nrpages);
+ 		vma = remove_vma(vma);
+ 	} while (vma);
+@@ -1864,6 +1864,8 @@ unsigned long do_brk(unsigned long addr,
+ 		lock_limit >>= PAGE_SHIFT;
+ 		if (locked > lock_limit && !capable(CAP_IPC_LOCK))
+ 			return -EAGAIN;
++		if (!vx_vmlocked_avail(mm, len >> PAGE_SHIFT))
++			return -ENOMEM;
+ 	}
+ 
+ 	/*
+@@ -1890,7 +1892,8 @@ unsigned long do_brk(unsigned long addr,
+ 	if (mm->map_count > sysctl_max_map_count)
+ 		return -ENOMEM;
+ 
+-	if (security_vm_enough_memory(len >> PAGE_SHIFT))
++	if (security_vm_enough_memory(len >> PAGE_SHIFT) ||
++		!vx_vmpages_avail(mm, len >> PAGE_SHIFT))
+ 		return -ENOMEM;
+ 
+ 	flags = VM_DATA_DEFAULT_FLAGS | VM_ACCOUNT | mm->def_flags;
+@@ -1918,9 +1921,9 @@ unsigned long do_brk(unsigned long addr,
+ 	vma->vm_page_prot = protection_map[flags & 0x0f];
+ 	vma_link(mm, vma, prev, rb_link, rb_parent);
+ out:
+-	mm->total_vm += len >> PAGE_SHIFT;
++	vx_vmpages_add(mm, len >> PAGE_SHIFT);
+ 	if (flags & VM_LOCKED) {
+-		mm->locked_vm += len >> PAGE_SHIFT;
++		vx_vmlocked_add(mm, len >> PAGE_SHIFT);
+ 		make_pages_present(addr, addr + len);
+ 	}
+ 	return addr;
+@@ -1946,6 +1949,11 @@ void exit_mmap(struct mm_struct *mm)
+ 	free_pgtables(&tlb, vma, FIRST_USER_ADDRESS, 0);
+ 	tlb_finish_mmu(tlb, 0, end);
+ 
++	set_mm_counter(mm, file_rss, 0);
++	set_mm_counter(mm, anon_rss, 0);
++	vx_vmpages_sub(mm, mm->total_vm);
++	vx_vmlocked_sub(mm, mm->locked_vm);
++
+ 	/*
+ 	 * Walk the list again, actually closing and freeing it,
+ 	 * with preemption enabled, without holding any MM locks.
+@@ -1985,7 +1993,8 @@ int insert_vm_struct(struct mm_struct * 
+ 	if (__vma && __vma->vm_start < vma->vm_end)
+ 		return -ENOMEM;
+ 	if ((vma->vm_flags & VM_ACCOUNT) &&
+-	     security_vm_enough_memory(vma_pages(vma)))
++		(security_vm_enough_memory(vma_pages(vma)) ||
++		!vx_vmpages_avail(mm, vma_pages(vma))))
+ 		return -ENOMEM;
+ 	vma_link(mm, vma, prev, rb_link, rb_parent);
+ 	return 0;
+@@ -2059,5 +2068,7 @@ int may_expand_vm(struct mm_struct *mm, 
+ 
+ 	if (cur + npages > lim)
+ 		return 0;
++	if (!vx_vmpages_avail(mm, npages))
++		return 0;
+ 	return 1;
+ }
+Index: vserver-sources-2.0.1_2.6.15/mm/mremap.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/mm/mremap.c
++++ vserver-sources-2.0.1_2.6.15/mm/mremap.c
+@@ -17,6 +17,7 @@
+ #include <linux/highmem.h>
+ #include <linux/security.h>
+ #include <linux/syscalls.h>
++#include <linux/vs_memory.h>
+ 
+ #include <asm/uaccess.h>
+ #include <asm/cacheflush.h>
+@@ -210,7 +211,7 @@ static unsigned long move_vma(struct vm_
+ 	 * If this were a serious issue, we'd add a flag to do_munmap().
+ 	 */
+ 	hiwater_vm = mm->hiwater_vm;
+-	mm->total_vm += new_len >> PAGE_SHIFT;
++	vx_vmpages_add(mm, new_len >> PAGE_SHIFT);
+ 	vm_stat_account(mm, vma->vm_flags, vma->vm_file, new_len>>PAGE_SHIFT);
+ 
+ 	if (do_munmap(mm, old_addr, old_len) < 0) {
+@@ -228,7 +229,7 @@ static unsigned long move_vma(struct vm_
+ 	}
+ 
+ 	if (vm_flags & VM_LOCKED) {
+-		mm->locked_vm += new_len >> PAGE_SHIFT;
++		vx_vmlocked_add(mm, new_len >> PAGE_SHIFT);
+ 		if (new_len > old_len)
+ 			make_pages_present(new_addr + old_len,
+ 					   new_addr + new_len);
+@@ -335,6 +336,9 @@ unsigned long do_mremap(unsigned long ad
+ 		ret = -EAGAIN;
+ 		if (locked > lock_limit && !capable(CAP_IPC_LOCK))
+ 			goto out;
++		if (!vx_vmlocked_avail(current->mm,
++			(new_len - old_len) >> PAGE_SHIFT))
++			goto out;
+ 	}
+ 	if (!may_expand_vm(mm, (new_len - old_len) >> PAGE_SHIFT)) {
+ 		ret = -ENOMEM;
+@@ -363,10 +367,10 @@ unsigned long do_mremap(unsigned long ad
+ 			vma_adjust(vma, vma->vm_start,
+ 				addr + new_len, vma->vm_pgoff, NULL);
+ 
+-			mm->total_vm += pages;
++			vx_vmpages_add(mm, pages);
+ 			vm_stat_account(mm, vma->vm_flags, vma->vm_file, pages);
+ 			if (vma->vm_flags & VM_LOCKED) {
+-				mm->locked_vm += pages;
++				vx_vmlocked_add(mm, pages);
+ 				make_pages_present(addr + old_len,
+ 						   addr + new_len);
+ 			}
+Index: vserver-sources-2.0.1_2.6.15/mm/nommu.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/mm/nommu.c
++++ vserver-sources-2.0.1_2.6.15/mm/nommu.c
+@@ -812,7 +812,7 @@ unsigned long do_mmap_pgoff(struct file 
+ 	realalloc += kobjsize(vma);
+ 	askedalloc += sizeof(*vma);
+ 
+-	current->mm->total_vm += len >> PAGE_SHIFT;
++	vx_vmpages_add(current->mm, len >> PAGE_SHIFT);
+ 
+ 	add_nommu_vma(vma);
+ 
+@@ -929,7 +929,7 @@ int do_munmap(struct mm_struct *mm, unsi
+ 	kfree(vml);
+ 
+ 	update_hiwater_vm(mm);
+-	mm->total_vm -= len >> PAGE_SHIFT;
++	vx_vmpages_sub(mm, len >> PAGE_SHIFT);
+ 
+ #ifdef DEBUG
+ 	show_process_blocks();
+@@ -948,7 +948,7 @@ void exit_mmap(struct mm_struct * mm)
+ 		printk("Exit_mmap:\n");
+ #endif
+ 
+-		mm->total_vm = 0;
++		vx_vmpages_sub(mm, mm->total_vm);
+ 
+ 		while ((tmp = mm->context.vmlist)) {
+ 			mm->context.vmlist = tmp->next;
+Index: vserver-sources-2.0.1_2.6.15/mm/oom_kill.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/mm/oom_kill.c
++++ vserver-sources-2.0.1_2.6.15/mm/oom_kill.c
+@@ -55,6 +55,7 @@ unsigned long badness(struct task_struct
+ 	 * The memory size of the process is the basis for the badness.
+ 	 */
+ 	points = p->mm->total_vm;
++	/* FIXME: add vserver badness ;) */
+ 
+ 	/*
+ 	 * Processes which fork a lot of child processes are likely
+Index: vserver-sources-2.0.1_2.6.15/mm/page_alloc.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/mm/page_alloc.c
++++ vserver-sources-2.0.1_2.6.15/mm/page_alloc.c
+@@ -36,6 +36,7 @@
+ #include <linux/memory_hotplug.h>
+ #include <linux/nodemask.h>
+ #include <linux/vmalloc.h>
++#include <linux/vs_limit.h>
+ 
+ #include <asm/tlbflush.h>
+ #include "internal.h"
+@@ -1298,6 +1299,8 @@ void si_meminfo(struct sysinfo *val)
+ 	val->freehigh = 0;
+ #endif
+ 	val->mem_unit = PAGE_SIZE;
++	if (vx_flags(VXF_VIRT_MEM, 0))
++		vx_vsi_meminfo(val);
+ }
+ 
+ EXPORT_SYMBOL(si_meminfo);
+Index: vserver-sources-2.0.1_2.6.15/mm/rmap.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/mm/rmap.c
++++ vserver-sources-2.0.1_2.6.15/mm/rmap.c
+@@ -52,6 +52,7 @@
+ #include <linux/init.h>
+ #include <linux/rmap.h>
+ #include <linux/rcupdate.h>
++#include <linux/vs_memory.h>
+ 
+ #include <asm/tlbflush.h>
+ 
+Index: vserver-sources-2.0.1_2.6.15/mm/shmem.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/mm/shmem.c
++++ vserver-sources-2.0.1_2.6.15/mm/shmem.c
+@@ -50,7 +50,6 @@
+ #include <asm/pgtable.h>
+ 
+ /* This magic number is used in glibc for posix shared memory */
+-#define TMPFS_MAGIC	0x01021994
+ 
+ #define ENTRIES_PER_PAGE (PAGE_CACHE_SIZE/sizeof(unsigned long))
+ #define ENTRIES_PER_PAGEPAGE (ENTRIES_PER_PAGE*ENTRIES_PER_PAGE)
+@@ -1580,7 +1579,7 @@ static int shmem_statfs(struct super_blo
+ {
+ 	struct shmem_sb_info *sbinfo = SHMEM_SB(sb);
+ 
+-	buf->f_type = TMPFS_MAGIC;
++	buf->f_type = TMPFS_SUPER_MAGIC;
+ 	buf->f_bsize = PAGE_CACHE_SIZE;
+ 	buf->f_namelen = NAME_MAX;
+ 	spin_lock(&sbinfo->stat_lock);
+@@ -1993,7 +1992,7 @@ static int shmem_fill_super(struct super
+ 	sb->s_maxbytes = SHMEM_MAX_BYTES;
+ 	sb->s_blocksize = PAGE_CACHE_SIZE;
+ 	sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
+-	sb->s_magic = TMPFS_MAGIC;
++	sb->s_magic = TMPFS_SUPER_MAGIC;
+ 	sb->s_op = &shmem_ops;
+ 
+ 	inode = shmem_get_inode(sb, S_IFDIR | mode, 0);
+Index: vserver-sources-2.0.1_2.6.15/mm/swapfile.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/mm/swapfile.c
++++ vserver-sources-2.0.1_2.6.15/mm/swapfile.c
+@@ -30,6 +30,7 @@
+ #include <asm/pgtable.h>
+ #include <asm/tlbflush.h>
+ #include <linux/swapops.h>
++#include <linux/vs_memory.h>
+ 
+ DEFINE_SPINLOCK(swap_lock);
+ unsigned int nr_swapfiles;
+@@ -1596,6 +1597,8 @@ void si_swapinfo(struct sysinfo *val)
+ 	val->freeswap = nr_swap_pages + nr_to_be_unused;
+ 	val->totalswap = total_swap_pages + nr_to_be_unused;
+ 	spin_unlock(&swap_lock);
++	if (vx_flags(VXF_VIRT_MEM, 0))
++		vx_vsi_swapinfo(val);
+ }
+ 
+ /*
+Index: vserver-sources-2.0.1_2.6.15/mm/vmscan.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/mm/vmscan.c
++++ vserver-sources-2.0.1_2.6.15/mm/vmscan.c
+@@ -1346,7 +1346,7 @@ static int __init kswapd_init(void)
+ 	swap_setup();
+ 	for_each_pgdat(pgdat)
+ 		pgdat->kswapd
+-		= find_task_by_pid(kernel_thread(kswapd, pgdat, CLONE_KERNEL));
++		= find_task_by_real_pid(kernel_thread(kswapd, pgdat, CLONE_KERNEL));
+ 	total_memory = nr_free_pagecache_pages();
+ 	hotcpu_notifier(cpu_callback, 0);
+ 	return 0;
+Index: vserver-sources-2.0.1_2.6.15/net/core/dev.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/net/core/dev.c
++++ vserver-sources-2.0.1_2.6.15/net/core/dev.c
+@@ -113,6 +113,7 @@
+ #include <linux/wireless.h>		/* Note : will define WIRELESS_EXT */
+ #include <net/iw_handler.h>
+ #endif	/* CONFIG_NET_RADIO */
++#include <linux/vs_network.h>
+ #include <asm/current.h>
+ 
+ /*
+@@ -1850,6 +1851,9 @@ static int dev_ifconf(char __user *arg)
+ 
+ 	total = 0;
+ 	for (dev = dev_base; dev; dev = dev->next) {
++		if (vx_flags(VXF_HIDE_NETIF, 0) &&
++			!dev_in_nx_info(dev, current->nx_info))
++			continue;
+ 		for (i = 0; i < NPROTO; i++) {
+ 			if (gifconf_list[i]) {
+ 				int done;
+@@ -1910,6 +1914,10 @@ void dev_seq_stop(struct seq_file *seq, 
+ 
+ static void dev_seq_printf_stats(struct seq_file *seq, struct net_device *dev)
+ {
++	struct nx_info *nxi = current->nx_info;
++
++	if (vx_flags(VXF_HIDE_NETIF, 0) && !dev_in_nx_info(dev, nxi))
++		return;
+ 	if (dev->get_stats) {
+ 		struct net_device_stats *stats = dev->get_stats(dev);
+ 
+Index: vserver-sources-2.0.1_2.6.15/net/core/rtnetlink.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/net/core/rtnetlink.c
++++ vserver-sources-2.0.1_2.6.15/net/core/rtnetlink.c
+@@ -278,6 +278,9 @@ static int rtnetlink_dump_ifinfo(struct 
+ 	for (dev=dev_base, idx=0; dev; dev = dev->next, idx++) {
+ 		if (idx < s_idx)
+ 			continue;
++		if (vx_info_flags(skb->sk->sk_vx_info, VXF_HIDE_NETIF, 0) &&
++			!dev_in_nx_info(dev, skb->sk->sk_nx_info))
++			continue;
+ 		if (rtnetlink_fill_ifinfo(skb, dev, RTM_NEWLINK,
+ 					  NETLINK_CB(cb->skb).pid,
+ 					  cb->nlh->nlmsg_seq, 0,
+@@ -451,6 +454,9 @@ void rtmsg_ifinfo(int type, struct net_d
+ 			       sizeof(struct rtnl_link_ifmap) +
+ 			       sizeof(struct rtnl_link_stats) + 128);
+ 
++	if (vx_flags(VXF_HIDE_NETIF, 0) &&
++		!dev_in_nx_info(dev, current->nx_info))
++		return;
+ 	skb = alloc_skb(size, GFP_KERNEL);
+ 	if (!skb)
+ 		return;
+Index: vserver-sources-2.0.1_2.6.15/net/core/sock.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/net/core/sock.c
++++ vserver-sources-2.0.1_2.6.15/net/core/sock.c
+@@ -124,6 +124,9 @@
+ #include <linux/ipsec.h>
+ 
+ #include <linux/filter.h>
++#include <linux/vs_socket.h>
++#include <linux/vs_limit.h>
++#include <linux/vs_context.h>
+ 
+ #ifdef CONFIG_INET
+ #include <net/tcp.h>
+@@ -660,6 +663,8 @@ struct sock *sk_alloc(int family, gfp_t 
+ 			sk->sk_prot = sk->sk_prot_creator = prot;
+ 			sock_lock_init(sk);
+ 		}
++		sock_vx_init(sk);
++		sock_nx_init(sk);
+ 		
+ 		if (security_sk_alloc(sk, family, priority))
+ 			goto out_free;
+@@ -698,6 +703,11 @@ void sk_free(struct sock *sk)
+ 		       __FUNCTION__, atomic_read(&sk->sk_omem_alloc));
+ 
+ 	security_sk_free(sk);
++	vx_sock_dec(sk);
++	clr_vx_info(&sk->sk_vx_info);
++	sk->sk_xid = -1;
++	clr_nx_info(&sk->sk_nx_info);
++	sk->sk_nid = -1;
+ 	if (sk->sk_prot_creator->slab != NULL)
+ 		kmem_cache_free(sk->sk_prot_creator->slab, sk);
+ 	else
+@@ -715,6 +725,8 @@ struct sock *sk_clone(const struct sock 
+ 		memcpy(newsk, sk, sk->sk_prot->obj_size);
+ 
+ 		/* SANITY */
++		sock_vx_init(newsk);
++		sock_nx_init(newsk);
+ 		sk_node_init(&newsk->sk_node);
+ 		sock_lock_init(newsk);
+ 		bh_lock_sock(newsk);
+@@ -755,6 +767,12 @@ struct sock *sk_clone(const struct sock 
+ 		newsk->sk_priority = 0;
+ 		atomic_set(&newsk->sk_refcnt, 2);
+ 
++		set_vx_info(&newsk->sk_vx_info, sk->sk_vx_info);
++		newsk->sk_xid = sk->sk_xid;
++		vx_sock_inc(newsk);
++		set_nx_info(&newsk->sk_nx_info, sk->sk_nx_info);
++		newsk->sk_nid = sk->sk_nid;
++
+ 		/*
+ 		 * Increment the counter in the same struct proto as the master
+ 		 * sock (sk_refcnt_debug_inc uses newsk->sk_prot->socks, that
+@@ -1319,6 +1337,11 @@ void sock_init_data(struct socket *sock,
+ 	sk->sk_stamp.tv_sec     = -1L;
+ 	sk->sk_stamp.tv_usec    = -1L;
+ 
++	set_vx_info(&sk->sk_vx_info, current->vx_info);
++	sk->sk_xid = vx_current_xid();
++	vx_sock_inc(sk);
++	set_nx_info(&sk->sk_nx_info, current->nx_info);
++	sk->sk_nid = nx_current_nid();
+ 	atomic_set(&sk->sk_refcnt, 1);
+ }
+ 
+Index: vserver-sources-2.0.1_2.6.15/net/ipv4/af_inet.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/net/ipv4/af_inet.c
++++ vserver-sources-2.0.1_2.6.15/net/ipv4/af_inet.c
+@@ -112,6 +112,7 @@
+ #ifdef CONFIG_IP_MROUTE
+ #include <linux/mroute.h>
+ #endif
++#include <linux/vs_limit.h>
+ 
+ DEFINE_SNMP_STAT(struct linux_mib, net_statistics) __read_mostly;
+ 
+@@ -280,9 +281,11 @@ lookup_protocol:
+ 	}
+ 
+ 	err = -EPERM;
++	if ((protocol == IPPROTO_ICMP) && vx_ccaps(VXC_RAW_ICMP))
++		goto override;
+ 	if (answer->capability > 0 && !capable(answer->capability))
+ 		goto out_rcu_unlock;
+-
++override:
+ 	sock->ops = answer->ops;
+ 	answer_prot = answer->prot;
+ 	answer_no_check = answer->no_check;
+@@ -398,6 +401,10 @@ int inet_bind(struct socket *sock, struc
+ 	unsigned short snum;
+ 	int chk_addr_ret;
+ 	int err;
++	__u32 s_addr;	/* Address used for validation */
++	__u32 s_addr1;	/* Address used for socket */
++	__u32 s_addr2;	/* Broadcast address for the socket */
++	struct nx_info *nxi = sk->sk_nx_info;
+ 
+ 	/* If the socket has its own bind function then use it. (RAW) */
+ 	if (sk->sk_prot->bind) {
+@@ -408,7 +415,40 @@ int inet_bind(struct socket *sock, struc
+ 	if (addr_len < sizeof(struct sockaddr_in))
+ 		goto out;
+ 
+-	chk_addr_ret = inet_addr_type(addr->sin_addr.s_addr);
++	s_addr = addr->sin_addr.s_addr;
++	s_addr1 = s_addr;
++	s_addr2 = 0xffffffffl;
++
++	vxdprintk(VXD_CBIT(net, 3),
++		"inet_bind(%p)* %p,%p;%lx %d.%d.%d.%d",
++		sk, sk->sk_nx_info, sk->sk_socket,
++		(sk->sk_socket?sk->sk_socket->flags:0),
++		VXD_QUAD(s_addr));
++	if (nxi) {
++		__u32 v4_bcast = nxi->v4_bcast;
++		__u32 ipv4root = nxi->ipv4[0];
++		int nbipv4 = nxi->nbipv4;
++
++		if (s_addr == 0) {
++			/* bind to any for 1-n */
++			s_addr = ipv4root;
++			s_addr1 = (nbipv4 > 1) ? 0 : s_addr;
++			s_addr2 = v4_bcast;
++		} else if (s_addr == IPI_LOOPBACK) {
++			/* rewrite localhost to ipv4root */
++			s_addr = ipv4root;
++			s_addr1 = ipv4root;
++		} else if (s_addr != v4_bcast) {
++			/* normal address bind */
++			if (!addr_in_nx_info(nxi, s_addr))
++				return -EADDRNOTAVAIL;
++		}
++	}
++	chk_addr_ret = inet_addr_type(s_addr);
++
++	vxdprintk(VXD_CBIT(net, 3),
++		"inet_bind(%p) %d.%d.%d.%d, %d.%d.%d.%d, %d.%d.%d.%d",
++		sk, VXD_QUAD(s_addr), VXD_QUAD(s_addr1), VXD_QUAD(s_addr2));
+ 
+ 	/* Not specified by any standard per-se, however it breaks too
+ 	 * many applications when removed.  It is unfortunate since
+@@ -420,7 +460,7 @@ int inet_bind(struct socket *sock, struc
+ 	err = -EADDRNOTAVAIL;
+ 	if (!sysctl_ip_nonlocal_bind &&
+ 	    !inet->freebind &&
+-	    addr->sin_addr.s_addr != INADDR_ANY &&
++	    s_addr != INADDR_ANY &&
+ 	    chk_addr_ret != RTN_LOCAL &&
+ 	    chk_addr_ret != RTN_MULTICAST &&
+ 	    chk_addr_ret != RTN_BROADCAST)
+@@ -445,7 +485,8 @@ int inet_bind(struct socket *sock, struc
+ 	if (sk->sk_state != TCP_CLOSE || inet->num)
+ 		goto out_release_sock;
+ 
+-	inet->rcv_saddr = inet->saddr = addr->sin_addr.s_addr;
++	inet->rcv_saddr = inet->saddr = s_addr1;
++	inet->rcv_saddr2 = s_addr2;
+ 	if (chk_addr_ret == RTN_MULTICAST || chk_addr_ret == RTN_BROADCAST)
+ 		inet->saddr = 0;  /* Use device */
+ 
+Index: vserver-sources-2.0.1_2.6.15/net/ipv4/devinet.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/net/ipv4/devinet.c
++++ vserver-sources-2.0.1_2.6.15/net/ipv4/devinet.c
+@@ -527,6 +527,33 @@ static __inline__ int inet_abc_len(u32 a
+   	return rc;
+ }
+ 
++/*
++	Check that a device is not member of the ipv4root assigned to the process
++	Return true if this is the case
++
++	If the process is not bound to specific IP, then it returns 0 (all
++	interface are fine).
++*/
++static inline int devinet_notiproot (struct in_ifaddr *ifa)
++{
++	int ret = 0;
++	struct nx_info *nxi;
++
++	if ((nxi = current->nx_info)) {
++		int i;
++		int nbip = nxi->nbipv4;
++		__u32 addr = ifa->ifa_local;
++		ret = 1;
++		for (i=0; i<nbip; i++) {
++			if(nxi->ipv4[i] == addr) {
++				ret = 0;
++				break;
++			}
++		}
++	}
++	return ret;
++}
++
+ 
+ int devinet_ioctl(unsigned int cmd, void __user *arg)
+ {
+@@ -634,6 +661,9 @@ int devinet_ioctl(unsigned int cmd, void
+ 	ret = -EADDRNOTAVAIL;
+ 	if (!ifa && cmd != SIOCSIFADDR && cmd != SIOCSIFFLAGS)
+ 		goto done;
++	if (vx_flags(VXF_HIDE_NETIF, 0) &&
++		!ifa_in_nx_info(ifa, current->nx_info))
++		goto done;
+ 
+ 	switch(cmd) {
+ 	case SIOCGIFADDR:	/* Get interface address */
+@@ -778,6 +808,9 @@ static int inet_gifconf(struct net_devic
+ 		goto out;
+ 
+ 	for (; ifa; ifa = ifa->ifa_next) {
++		if (vx_flags(VXF_HIDE_NETIF, 0) &&
++			!ifa_in_nx_info(ifa, current->nx_info))
++			continue;
+ 		if (!buf) {
+ 			done += sizeof(ifr);
+ 			continue;
+@@ -1089,6 +1122,7 @@ static int inet_dump_ifaddr(struct sk_bu
+ 	struct net_device *dev;
+ 	struct in_device *in_dev;
+ 	struct in_ifaddr *ifa;
++	struct sock *sk = skb->sk;
+ 	int s_ip_idx, s_idx = cb->args[0];
+ 
+ 	s_ip_idx = ip_idx = cb->args[1];
+@@ -1106,6 +1140,9 @@ static int inet_dump_ifaddr(struct sk_bu
+ 
+ 		for (ifa = in_dev->ifa_list, ip_idx = 0; ifa;
+ 		     ifa = ifa->ifa_next, ip_idx++) {
++			if (sk && vx_info_flags(sk->sk_vx_info, VXF_HIDE_NETIF, 0) &&
++				!ifa_in_nx_info(ifa, sk->sk_nx_info))
++				continue;
+ 			if (ip_idx < s_ip_idx)
+ 				continue;
+ 			if (inet_fill_ifaddr(skb, ifa, NETLINK_CB(cb->skb).pid,
+Index: vserver-sources-2.0.1_2.6.15/net/ipv4/fib_hash.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/net/ipv4/fib_hash.c
++++ vserver-sources-2.0.1_2.6.15/net/ipv4/fib_hash.c
+@@ -988,6 +988,8 @@ static unsigned fib_flag_trans(int type,
+ 	return flags;
+ }
+ 
++extern int dev_in_nx_info(struct net_device *, struct nx_info *);
++
+ /* 
+  *	This outputs /proc/net/route.
+  *
+@@ -1018,7 +1020,8 @@ static int fib_seq_show(struct seq_file 
+ 	prefix	= f->fn_key;
+ 	mask	= FZ_MASK(iter->zone);
+ 	flags	= fib_flag_trans(fa->fa_type, mask, fi);
+-	if (fi)
++	if (fi && (!vx_flags(VXF_HIDE_NETIF, 0) ||
++		dev_in_nx_info(fi->fib_dev, current->nx_info)))
+ 		snprintf(bf, sizeof(bf),
+ 			 "%s\t%08X\t%08X\t%04X\t%d\t%u\t%d\t%08X\t%d\t%u\t%u",
+ 			 fi->fib_dev ? fi->fib_dev->name : "*", prefix,
+Index: vserver-sources-2.0.1_2.6.15/net/ipv4/inet_connection_sock.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/net/ipv4/inet_connection_sock.c
++++ vserver-sources-2.0.1_2.6.15/net/ipv4/inet_connection_sock.c
+@@ -39,7 +39,6 @@ int sysctl_local_port_range[2] = { 1024,
+ 
+ static inline int inet_csk_bind_conflict(struct sock *sk, struct inet_bind_bucket *tb)
+ {
+-	const u32 sk_rcv_saddr = inet_rcv_saddr(sk);
+ 	struct sock *sk2;
+ 	struct hlist_node *node;
+ 	int reuse = sk->sk_reuse;
+@@ -52,9 +51,8 @@ static inline int inet_csk_bind_conflict
+ 		     sk->sk_bound_dev_if == sk2->sk_bound_dev_if)) {
+ 			if (!reuse || !sk2->sk_reuse ||
+ 			    sk2->sk_state == TCP_LISTEN) {
+-				const u32 sk2_rcv_saddr = inet_rcv_saddr(sk2);
+-				if (!sk2_rcv_saddr || !sk_rcv_saddr ||
+-				    sk2_rcv_saddr == sk_rcv_saddr)
++				if (nx_addr_conflict(sk->sk_nx_info,
++					inet_rcv_saddr(sk), sk2))
+ 					break;
+ 			}
+ 		}
+Index: vserver-sources-2.0.1_2.6.15/net/ipv4/inet_diag.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/net/ipv4/inet_diag.c
++++ vserver-sources-2.0.1_2.6.15/net/ipv4/inet_diag.c
+@@ -616,6 +616,8 @@ static int inet_diag_dump(struct sk_buff
+ 			sk_for_each(sk, node, &hashinfo->listening_hash[i]) {
+ 				struct inet_sock *inet = inet_sk(sk);
+ 
++				if (!vx_check(sk->sk_xid, VX_IDENT|VX_WATCH))
++					continue;
+ 				if (num < s_num) {
+ 					num++;
+ 					continue;
+@@ -677,6 +679,8 @@ skip_listen_ht:
+ 		sk_for_each(sk, node, &head->chain) {
+ 			struct inet_sock *inet = inet_sk(sk);
+ 
++			if (!vx_check(sk->sk_xid, VX_IDENT|VX_WATCH))
++				continue;
+ 			if (num < s_num)
+ 				goto next_normal;
+ 			if (!(r->idiag_states & (1 << sk->sk_state)))
+@@ -699,6 +703,8 @@ next_normal:
+ 				    &hashinfo->ehash[i + hashinfo->ehash_size].chain) {
+ 				struct inet_sock *inet = inet_sk(sk);
+ 
++				if (!vx_check(sk->sk_xid, VX_IDENT|VX_WATCH))
++					continue;
+ 				if (num < s_num)
+ 					goto next_dying;
+ 				if (r->id.idiag_sport != inet->sport &&
+Index: vserver-sources-2.0.1_2.6.15/net/ipv4/inet_hashtables.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/net/ipv4/inet_hashtables.c
++++ vserver-sources-2.0.1_2.6.15/net/ipv4/inet_hashtables.c
+@@ -141,11 +141,10 @@ struct sock *__inet_lookup_listener(cons
+ 			const __u32 rcv_saddr = inet->rcv_saddr;
+ 			int score = sk->sk_family == PF_INET ? 1 : 0;
+ 
+-			if (rcv_saddr) {
+-				if (rcv_saddr != daddr)
+-					continue;
++			if (inet_addr_match(sk->sk_nx_info, daddr, rcv_saddr))
+ 				score += 2;
+-			}
++			else
++				continue;
+ 			if (sk->sk_bound_dev_if) {
+ 				if (sk->sk_bound_dev_if != dif)
+ 					continue;
+Index: vserver-sources-2.0.1_2.6.15/net/ipv4/raw.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/net/ipv4/raw.c
++++ vserver-sources-2.0.1_2.6.15/net/ipv4/raw.c
+@@ -102,6 +102,27 @@ static void raw_v4_unhash(struct sock *s
+ 	write_unlock_bh(&raw_v4_lock);
+ }
+ 
++
++/*
++ *	Check if a given address matches for a socket
++ *
++ *	nxi:		the socket's nx_info if any
++ *	addr:		to be verified address
++ *	saddr/baddr:	socket addresses
++ */
++static inline int raw_addr_match (
++	struct nx_info *nxi,
++	uint32_t addr,
++	uint32_t saddr,
++	uint32_t baddr)
++{
++	if (addr && (saddr == addr || baddr == addr))
++		return 1;
++	if (!saddr)
++		return addr_in_nx_info(nxi, addr);
++	return 0;
++}
++
+ struct sock *__raw_v4_lookup(struct sock *sk, unsigned short num,
+ 			     unsigned long raddr, unsigned long laddr,
+ 			     int dif)
+@@ -113,7 +134,8 @@ struct sock *__raw_v4_lookup(struct sock
+ 
+ 		if (inet->num == num 					&&
+ 		    !(inet->daddr && inet->daddr != raddr) 		&&
+-		    !(inet->rcv_saddr && inet->rcv_saddr != laddr)	&&
++		    raw_addr_match(sk->sk_nx_info, laddr,
++			inet->rcv_saddr, inet->rcv_saddr2)		&&
+ 		    !(sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif))
+ 			goto found; /* gotcha */
+ 	}
+@@ -311,6 +333,10 @@ static int raw_send_hdrinc(struct sock *
+ 
+ 		iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
+ 	}
++	err = -EPERM;
++	if (!vx_check(0, VX_ADMIN) && !capable(CAP_NET_RAW)
++		&& (!addr_in_nx_info(sk->sk_nx_info, iph->saddr)))
++		goto error;
+ 
+ 	err = NF_HOOK(PF_INET, NF_IP_LOCAL_OUT, skb, NULL, rt->u.dst.dev,
+ 		      dst_output);
+@@ -483,6 +509,12 @@ static int raw_sendmsg(struct kiocb *ioc
+ 		if (!inet->hdrincl)
+ 			raw_probe_proto_opt(&fl, msg);
+ 
++		if (sk->sk_nx_info) {
++			err = ip_find_src(sk->sk_nx_info, &rt, &fl);
++
++			if (err)
++				goto done;
++		}
+ 		err = ip_route_output_flow(&rt, &fl, sk, !(msg->msg_flags&MSG_DONTWAIT));
+ 	}
+ 	if (err)
+@@ -752,7 +784,8 @@ static struct sock *raw_get_first(struct
+ 		struct hlist_node *node;
+ 
+ 		sk_for_each(sk, node, &raw_v4_htable[state->bucket])
+-			if (sk->sk_family == PF_INET)
++			if (sk->sk_family == PF_INET &&
++				vx_check(sk->sk_xid, VX_IDENT|VX_WATCH))
+ 				goto found;
+ 	}
+ 	sk = NULL;
+@@ -768,7 +801,8 @@ static struct sock *raw_get_next(struct 
+ 		sk = sk_next(sk);
+ try_again:
+ 		;
+-	} while (sk && sk->sk_family != PF_INET);
++	} while (sk && (sk->sk_family != PF_INET ||
++		!vx_check(sk->sk_xid, VX_IDENT|VX_WATCH)));
+ 
+ 	if (!sk && ++state->bucket < RAWV4_HTABLE_SIZE) {
+ 		sk = sk_head(&raw_v4_htable[state->bucket]);
+Index: vserver-sources-2.0.1_2.6.15/net/ipv4/tcp_ipv4.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/net/ipv4/tcp_ipv4.c
++++ vserver-sources-2.0.1_2.6.15/net/ipv4/tcp_ipv4.c
+@@ -76,6 +76,7 @@
+ #include <linux/stddef.h>
+ #include <linux/proc_fs.h>
+ #include <linux/seq_file.h>
++#include <linux/vserver/debug.h>
+ 
+ int sysctl_tcp_tw_reuse;
+ int sysctl_tcp_low_latency;
+@@ -1516,6 +1517,12 @@ static void *listening_get_next(struct s
+ 		req = req->dl_next;
+ 		while (1) {
+ 			while (req) {
++				vxdprintk(VXD_CBIT(net, 6),
++					"sk,req: %p [#%d] (from %d)", req->sk,
++					(req->sk)?req->sk->sk_xid:0, vx_current_xid());
++				if (req->sk &&
++					!vx_check(req->sk->sk_xid, VX_IDENT|VX_WATCH))
++					continue;
+ 				if (req->rsk_ops->family == st->family) {
+ 					cur = req;
+ 					goto out;
+@@ -1540,6 +1547,10 @@ get_req:
+ 	}
+ get_sk:
+ 	sk_for_each_from(sk, node) {
++		vxdprintk(VXD_CBIT(net, 6), "sk: %p [#%d] (from %d)",
++			sk, sk->sk_xid, vx_current_xid());
++		if (!vx_check(sk->sk_xid, VX_IDENT|VX_WATCH))
++			continue;
+ 		if (sk->sk_family == st->family) {
+ 			cur = sk;
+ 			goto out;
+@@ -1591,18 +1602,26 @@ static void *established_get_first(struc
+ 
+ 		read_lock(&tcp_hashinfo.ehash[st->bucket].lock);
+ 		sk_for_each(sk, node, &tcp_hashinfo.ehash[st->bucket].chain) {
+-			if (sk->sk_family != st->family) {
++			vxdprintk(VXD_CBIT(net, 6),
++				"sk,egf: %p [#%d] (from %d)",
++				sk, sk->sk_xid, vx_current_xid());
++			if (!vx_check(sk->sk_xid, VX_IDENT|VX_WATCH))
++				continue;
++			if (sk->sk_family != st->family)
+ 				continue;
+-			}
+ 			rc = sk;
+ 			goto out;
+ 		}
+ 		st->state = TCP_SEQ_STATE_TIME_WAIT;
+ 		inet_twsk_for_each(tw, node,
+ 				   &tcp_hashinfo.ehash[st->bucket + tcp_hashinfo.ehash_size].chain) {
+-			if (tw->tw_family != st->family) {
++			vxdprintk(VXD_CBIT(net, 6),
++				"tw: %p [#%d] (from %d)",
++				tw, tw->tw_xid, vx_current_xid());
++			if (!vx_check(tw->tw_xid, VX_IDENT|VX_WATCH))
++				continue;
++			if (tw->tw_family != st->family)
+ 				continue;
+-			}
+ 			rc = tw;
+ 			goto out;
+ 		}
+@@ -1626,7 +1645,8 @@ static void *established_get_next(struct
+ 		tw = cur;
+ 		tw = tw_next(tw);
+ get_tw:
+-		while (tw && tw->tw_family != st->family) {
++		while (tw && (tw->tw_family != st->family ||
++			!vx_check(tw->tw_xid, VX_IDENT|VX_WATCH))) {
+ 			tw = tw_next(tw);
+ 		}
+ 		if (tw) {
+@@ -1650,6 +1670,11 @@ get_tw:
+ 		sk = sk_next(sk);
+ 
+ 	sk_for_each_from(sk, node) {
++		vxdprintk(VXD_CBIT(net, 6),
++			"sk,egn: %p [#%d] (from %d)",
++			sk, sk->sk_xid, vx_current_xid());
++		if (!vx_check(sk->sk_xid, VX_IDENT|VX_WATCH))
++			continue;
+ 		if (sk->sk_family == st->family)
+ 			goto found;
+ 	}
+Index: vserver-sources-2.0.1_2.6.15/net/ipv4/tcp_minisocks.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/net/ipv4/tcp_minisocks.c
++++ vserver-sources-2.0.1_2.6.15/net/ipv4/tcp_minisocks.c
+@@ -29,6 +29,10 @@
+ #include <net/inet_common.h>
+ #include <net/xfrm.h>
+ 
++#include <linux/vs_limit.h>
++#include <linux/vs_socket.h>
++#include <linux/vs_context.h>
++
+ #ifdef CONFIG_SYSCTL
+ #define SYNC_INIT 0 /* let the user enable it */
+ #else
+@@ -295,6 +299,11 @@ void tcp_time_wait(struct sock *sk, int 
+ 		tcptw->tw_ts_recent	= tp->rx_opt.ts_recent;
+ 		tcptw->tw_ts_recent_stamp = tp->rx_opt.ts_recent_stamp;
+ 
++		tw->tw_xid		= sk->sk_xid;
++		tw->tw_vx_info		= NULL;
++		tw->tw_nid		= sk->sk_nid;
++		tw->tw_nx_info		= NULL;
++
+ #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+ 		if (tw->tw_family == PF_INET6) {
+ 			struct ipv6_pinfo *np = inet6_sk(sk);
+Index: vserver-sources-2.0.1_2.6.15/net/ipv4/udp.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/net/ipv4/udp.c
++++ vserver-sources-2.0.1_2.6.15/net/ipv4/udp.c
+@@ -175,14 +175,12 @@ gotit:
+ 			struct inet_sock *inet2 = inet_sk(sk2);
+ 
+ 			if (inet2->num == snum &&
+-			    sk2 != sk &&
+-			    !ipv6_only_sock(sk2) &&
++			    sk2 != sk && !ipv6_only_sock(sk2) &&
+ 			    (!sk2->sk_bound_dev_if ||
+ 			     !sk->sk_bound_dev_if ||
+ 			     sk2->sk_bound_dev_if == sk->sk_bound_dev_if) &&
+-			    (!inet2->rcv_saddr ||
+-			     !inet->rcv_saddr ||
+-			     inet2->rcv_saddr == inet->rcv_saddr) &&
++			    nx_addr_conflict(sk->sk_nx_info,
++			     inet_rcv_saddr(sk), sk2) &&
+ 			    (!sk2->sk_reuse || !sk->sk_reuse))
+ 				goto fail;
+ 		}
+@@ -217,6 +215,17 @@ static void udp_v4_unhash(struct sock *s
+ 	write_unlock_bh(&udp_hash_lock);
+ }
+ 
++static inline int udp_in_list(struct nx_info *nx_info, u32 addr)
++{
++	int n = nx_info->nbipv4;
++	int i;
++
++	for (i=0; i<n; i++)
++		if (nx_info->ipv4[i] == addr)
++			return 1;
++	return 0;
++}
++
+ /* UDP is nearly always wildcards out the wazoo, it makes no sense to try
+  * harder than this. -DaveM
+  */
+@@ -237,6 +246,11 @@ static struct sock *udp_v4_lookup_longwa
+ 				if (inet->rcv_saddr != daddr)
+ 					continue;
+ 				score+=2;
++			} else if (sk->sk_nx_info) {
++				if (udp_in_list(sk->sk_nx_info, daddr))
++					score+=2;
++				else
++					continue;
+ 			}
+ 			if (inet->daddr) {
+ 				if (inet->daddr != saddr)
+@@ -293,7 +307,8 @@ static inline struct sock *udp_v4_mcast_
+ 		if (inet->num != hnum					||
+ 		    (inet->daddr && inet->daddr != rmt_addr)		||
+ 		    (inet->dport != rmt_port && inet->dport)		||
+-		    (inet->rcv_saddr && inet->rcv_saddr != loc_addr)	||
++		    (inet->rcv_saddr && inet->rcv_saddr != loc_addr &&
++		     inet->rcv_saddr2 && inet->rcv_saddr2 != loc_addr)	||
+ 		    ipv6_only_sock(s)					||
+ 		    (s->sk_bound_dev_if && s->sk_bound_dev_if != dif))
+ 			continue;
+@@ -603,6 +618,15 @@ int udp_sendmsg(struct kiocb *iocb, stru
+ 				    .uli_u = { .ports =
+ 					       { .sport = inet->sport,
+ 						 .dport = dport } } };
++		struct nx_info *nxi = sk->sk_nx_info;
++
++		if (nxi) {
++			err = ip_find_src(nxi, &rt, &fl);
++			if (err)
++				goto out;
++			if (daddr == IPI_LOOPBACK && !vx_check(0, VX_ADMIN))
++				daddr = fl.fl4_dst = nxi->ipv4[0];
++		}
+ 		err = ip_route_output_flow(&rt, &fl, sk, !(msg->msg_flags&MSG_DONTWAIT));
+ 		if (err)
+ 			goto out;
+@@ -1382,8 +1406,10 @@ static struct sock *udp_get_first(struct
+ 
+ 	for (state->bucket = 0; state->bucket < UDP_HTABLE_SIZE; ++state->bucket) {
+ 		struct hlist_node *node;
++
+ 		sk_for_each(sk, node, &udp_hash[state->bucket]) {
+-			if (sk->sk_family == state->family)
++			if (sk->sk_family == state->family &&
++				vx_check(sk->sk_xid, VX_IDENT|VX_WATCH))
+ 				goto found;
+ 		}
+ 	}
+@@ -1400,7 +1426,8 @@ static struct sock *udp_get_next(struct 
+ 		sk = sk_next(sk);
+ try_again:
+ 		;
+-	} while (sk && sk->sk_family != state->family);
++	} while (sk && (sk->sk_family != state->family ||
++		!vx_check(sk->sk_xid, VX_IDENT|VX_WATCH)));
+ 
+ 	if (!sk && ++state->bucket < UDP_HTABLE_SIZE) {
+ 		sk = sk_head(&udp_hash[state->bucket]);
+Index: vserver-sources-2.0.1_2.6.15/net/ipv6/addrconf.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/net/ipv6/addrconf.c
++++ vserver-sources-2.0.1_2.6.15/net/ipv6/addrconf.c
+@@ -2645,7 +2645,10 @@ static void if6_seq_stop(struct seq_file
+ static int if6_seq_show(struct seq_file *seq, void *v)
+ {
+ 	struct inet6_ifaddr *ifp = (struct inet6_ifaddr *)v;
+-	seq_printf(seq,
++
++	/* no ipv6 inside a vserver for now */
++	if (vx_check(0, VX_ADMIN|VX_WATCH))
++		seq_printf(seq,
+ 		   "%04x%04x%04x%04x%04x%04x%04x%04x %02x %02x %02x %02x %8s\n",
+ 		   NIP6(ifp->addr),
+ 		   ifp->idev->dev->ifindex,
+@@ -3001,6 +3004,10 @@ static int inet6_dump_addr(struct sk_buf
+ 	struct ifmcaddr6 *ifmca;
+ 	struct ifacaddr6 *ifaca;
+ 
++	/* no ipv6 inside a vserver for now */
++	if (skb->sk && skb->sk->sk_vx_info)
++		return skb->len;
++
+ 	s_idx = cb->args[0];
+ 	s_ip_idx = ip_idx = cb->args[1];
+ 	read_lock(&dev_base_lock);
+@@ -3206,6 +3213,10 @@ static int inet6_dump_ifinfo(struct sk_b
+ 	struct net_device *dev;
+ 	struct inet6_dev *idev;
+ 
++	/* no ipv6 inside a vserver for now */
++	if (skb->sk && skb->sk->sk_vx_info)
++		return skb->len;
++
+ 	read_lock(&dev_base_lock);
+ 	for (dev=dev_base, idx=0; dev; dev = dev->next, idx++) {
+ 		if (idx < s_idx)
+Index: vserver-sources-2.0.1_2.6.15/net/netlink/af_netlink.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/net/netlink/af_netlink.c
++++ vserver-sources-2.0.1_2.6.15/net/netlink/af_netlink.c
+@@ -55,6 +55,9 @@
+ #include <linux/mm.h>
+ #include <linux/types.h>
+ #include <linux/audit.h>
++#include <linux/vs_context.h>
++#include <linux/vs_network.h>
++#include <linux/vs_limit.h>
+ 
+ #include <net/sock.h>
+ #include <net/scm.h>
+Index: vserver-sources-2.0.1_2.6.15/net/socket.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/net/socket.c
++++ vserver-sources-2.0.1_2.6.15/net/socket.c
+@@ -96,6 +96,7 @@
+ 
+ #include <net/sock.h>
+ #include <linux/netfilter.h>
++#include <linux/vs_socket.h>
+ 
+ static int sock_no_open(struct inode *irrelevant, struct file *dontcare);
+ static ssize_t sock_aio_read(struct kiocb *iocb, char __user *buf,
+@@ -536,7 +537,7 @@ static inline int __sock_sendmsg(struct 
+ 				 struct msghdr *msg, size_t size)
+ {
+ 	struct sock_iocb *si = kiocb_to_siocb(iocb);
+-	int err;
++	int err, len;
+ 
+ 	si->sock = sock;
+ 	si->scm = NULL;
+@@ -547,7 +548,21 @@ static inline int __sock_sendmsg(struct 
+ 	if (err)
+ 		return err;
+ 
+-	return sock->ops->sendmsg(iocb, sock, msg, size);
++	len = sock->ops->sendmsg(iocb, sock, msg, size);
++	if (sock->sk) {
++		if (len == size)
++			vx_sock_send(sock->sk, size);
++		else
++			vx_sock_fail(sock->sk, size);
++	}
++	vxdprintk(VXD_CBIT(net, 7),
++		"__sock_sendmsg: %p[%p,%p,%p;%d]:%d/%d",
++		sock, sock->sk,
++		(sock->sk)?sock->sk->sk_nx_info:0,
++		(sock->sk)?sock->sk->sk_vx_info:0,
++		(sock->sk)?sock->sk->sk_xid:0,
++		(unsigned int)size, len);
++	return len;
+ }
+ 
+ int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
+@@ -585,7 +600,7 @@ int kernel_sendmsg(struct socket *sock, 
+ static inline int __sock_recvmsg(struct kiocb *iocb, struct socket *sock, 
+ 				 struct msghdr *msg, size_t size, int flags)
+ {
+-	int err;
++	int err, len;
+ 	struct sock_iocb *si = kiocb_to_siocb(iocb);
+ 
+ 	si->sock = sock;
+@@ -598,7 +613,17 @@ static inline int __sock_recvmsg(struct 
+ 	if (err)
+ 		return err;
+ 
+-	return sock->ops->recvmsg(iocb, sock, msg, size, flags);
++	len = sock->ops->recvmsg(iocb, sock, msg, size, flags);
++	if ((len >= 0) && sock->sk)
++		vx_sock_recv(sock->sk, len);
++	vxdprintk(VXD_CBIT(net, 7),
++		"__sock_recvmsg: %p[%p,%p,%p;%d]:%d/%d",
++		sock, sock->sk,
++		(sock->sk)?sock->sk->sk_nx_info:0,
++		(sock->sk)?sock->sk->sk_vx_info:0,
++		(sock->sk)?sock->sk->sk_xid:0,
++		(unsigned int)size, len);
++	return len;
+ }
+ 
+ int sock_recvmsg(struct socket *sock, struct msghdr *msg, 
+@@ -1085,6 +1110,10 @@ static int __sock_create(int family, int
+ 	if (type < 0 || type >= SOCK_MAX)
+ 		return -EINVAL;
+ 
++	/* disable IPv6 inside vservers for now */
++	if (family == PF_INET6 && !vx_check(0, VX_ADMIN))
++		return -EAFNOSUPPORT;
++
+ 	/* Compatibility.
+ 
+ 	   This uglymoron is moved from INET layer to here to avoid
+@@ -1195,6 +1224,7 @@ asmlinkage long sys_socket(int family, i
+ 	if (retval < 0)
+ 		goto out;
+ 
++	set_bit(SOCK_USER_SOCKET, &sock->flags);
+ 	retval = sock_map_fd(sock);
+ 	if (retval < 0)
+ 		goto out_release;
+@@ -1225,10 +1255,12 @@ asmlinkage long sys_socketpair(int famil
+ 	err = sock_create(family, type, protocol, &sock1);
+ 	if (err < 0)
+ 		goto out;
++	set_bit(SOCK_USER_SOCKET, &sock1->flags);
+ 
+ 	err = sock_create(family, type, protocol, &sock2);
+ 	if (err < 0)
+ 		goto out_release_1;
++	set_bit(SOCK_USER_SOCKET, &sock2->flags);
+ 
+ 	err = sock1->ops->socketpair(sock1, sock2);
+ 	if (err < 0) 
+Index: vserver-sources-2.0.1_2.6.15/net/sunrpc/auth.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/net/sunrpc/auth.c
++++ vserver-sources-2.0.1_2.6.15/net/sunrpc/auth.c
+@@ -13,6 +13,7 @@
+ #include <linux/errno.h>
+ #include <linux/sunrpc/clnt.h>
+ #include <linux/spinlock.h>
++#include <linux/vserver/xid.h>
+ 
+ #ifdef RPC_DEBUG
+ # define RPCDBG_FACILITY	RPCDBG_AUTH
+@@ -243,6 +244,7 @@ rpcauth_lookupcred(struct rpc_auth *auth
+ 	struct auth_cred acred = {
+ 		.uid = current->fsuid,
+ 		.gid = current->fsgid,
++		.xid = vx_current_xid(),
+ 		.group_info = current->group_info,
+ 	};
+ 	struct rpc_cred *ret;
+@@ -262,6 +264,7 @@ rpcauth_bindcred(struct rpc_task *task)
+ 	struct auth_cred acred = {
+ 		.uid = current->fsuid,
+ 		.gid = current->fsgid,
++		.xid = vx_current_xid(),
+ 		.group_info = current->group_info,
+ 	};
+ 	struct rpc_cred *ret;
+Index: vserver-sources-2.0.1_2.6.15/net/sunrpc/auth_unix.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/net/sunrpc/auth_unix.c
++++ vserver-sources-2.0.1_2.6.15/net/sunrpc/auth_unix.c
+@@ -11,12 +11,14 @@
+ #include <linux/module.h>
+ #include <linux/sunrpc/clnt.h>
+ #include <linux/sunrpc/auth.h>
++#include <linux/vserver/xid.h>
+ 
+ #define NFS_NGROUPS	16
+ 
+ struct unx_cred {
+ 	struct rpc_cred		uc_base;
+ 	gid_t			uc_gid;
++	xid_t			uc_xid;
+ 	gid_t			uc_gids[NFS_NGROUPS];
+ };
+ #define uc_uid			uc_base.cr_uid
+@@ -78,6 +80,7 @@ unx_create_cred(struct rpc_auth *auth, s
+ 	if (flags & RPC_TASK_ROOTCREDS) {
+ 		cred->uc_uid = 0;
+ 		cred->uc_gid = 0;
++		cred->uc_xid = vx_current_xid();
+ 		cred->uc_gids[0] = NOGROUP;
+ 	} else {
+ 		int groups = acred->group_info->ngroups;
+@@ -86,6 +89,7 @@ unx_create_cred(struct rpc_auth *auth, s
+ 
+ 		cred->uc_uid = acred->uid;
+ 		cred->uc_gid = acred->gid;
++		cred->uc_xid = acred->xid;
+ 		for (i = 0; i < groups; i++)
+ 			cred->uc_gids[i] = GROUP_AT(acred->group_info, i);
+ 		if (i < NFS_NGROUPS)
+@@ -117,7 +121,8 @@ unx_match(struct auth_cred *acred, struc
+ 		int groups;
+ 
+ 		if (cred->uc_uid != acred->uid
+-		 || cred->uc_gid != acred->gid)
++		 || cred->uc_gid != acred->gid
++		 || cred->uc_xid != acred->xid)
+ 			return 0;
+ 
+ 		groups = acred->group_info->ngroups;
+@@ -143,7 +148,7 @@ unx_marshal(struct rpc_task *task, u32 *
+ 	struct rpc_clnt	*clnt = task->tk_client;
+ 	struct unx_cred	*cred = (struct unx_cred *) task->tk_msg.rpc_cred;
+ 	u32		*base, *hold;
+-	int		i;
++	int		i, tagxid;
+ 
+ 	*p++ = htonl(RPC_AUTH_UNIX);
+ 	base = p++;
+@@ -153,9 +158,12 @@ unx_marshal(struct rpc_task *task, u32 *
+ 	 * Copy the UTS nodename captured when the client was created.
+ 	 */
+ 	p = xdr_encode_array(p, clnt->cl_nodename, clnt->cl_nodelen);
++	tagxid = task->tk_client->cl_tagxid;
+ 
+-	*p++ = htonl((u32) cred->uc_uid);
+-	*p++ = htonl((u32) cred->uc_gid);
++	*p++ = htonl((u32) XIDINO_UID(tagxid,
++		cred->uc_uid, cred->uc_xid));
++	*p++ = htonl((u32) XIDINO_GID(tagxid,
++		cred->uc_gid, cred->uc_xid));
+ 	hold = p++;
+ 	for (i = 0; i < 16 && cred->uc_gids[i] != (gid_t) NOGROUP; i++)
+ 		*p++ = htonl((u32) cred->uc_gids[i]);
+Index: vserver-sources-2.0.1_2.6.15/net/unix/af_unix.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/net/unix/af_unix.c
++++ vserver-sources-2.0.1_2.6.15/net/unix/af_unix.c
+@@ -117,6 +117,9 @@
+ #include <linux/mount.h>
+ #include <net/checksum.h>
+ #include <linux/security.h>
++#include <linux/vs_context.h>
++#include <linux/vs_network.h>
++#include <linux/vs_limit.h>
+ 
+ int sysctl_unix_max_dgram_qlen = 10;
+ 
+Index: vserver-sources-2.0.1_2.6.15/net/x25/af_x25.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/net/x25/af_x25.c
++++ vserver-sources-2.0.1_2.6.15/net/x25/af_x25.c
+@@ -490,7 +490,10 @@ static int x25_create(struct socket *soc
+ 
+ 	x25 = x25_sk(sk);
+ 
+-	sock_init_data(sock, sk);
++	sk->sk_socket = sock;
++	sk->sk_type = sock->type;
++	sk->sk_sleep = &sock->wait;
++	sock->sk = sk;
+ 
+ 	x25_init_timers(sk);
+ 
+Index: vserver-sources-2.0.1_2.6.15/security/commoncap.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/security/commoncap.c
++++ vserver-sources-2.0.1_2.6.15/security/commoncap.c
+@@ -142,7 +142,7 @@ void cap_bprm_apply_creds (struct linux_
+ 	/* Derived from fs/exec.c:compute_creds. */
+ 	kernel_cap_t new_permitted, working;
+ 
+-	new_permitted = cap_intersect (bprm->cap_permitted, cap_bset);
++	new_permitted = cap_intersect (bprm->cap_permitted, vx_current_bcaps());
+ 	working = cap_intersect (bprm->cap_inheritable,
+ 				 current->cap_inheritable);
+ 	new_permitted = cap_combine (new_permitted, working);
+@@ -311,7 +311,8 @@ void cap_task_reparent_to_init (struct t
+ 
+ int cap_syslog (int type)
+ {
+-	if ((type != 3 && type != 10) && !capable(CAP_SYS_ADMIN))
++	if ((type != 3 && type != 10) &&
++		!capable(CAP_SYS_ADMIN) && !vx_ccaps(VXC_SYSLOG))
+ 		return -EPERM;
+ 	return 0;
+ }
+Index: vserver-sources-2.0.1_2.6.15/security/security.c
+===================================================================
+--- vserver-sources-2.0.1_2.6.15.orig/security/security.c
++++ vserver-sources-2.0.1_2.6.15/security/security.c
+@@ -185,6 +185,8 @@ int mod_unreg_security(const char *name,
+  */
+ int capable(int cap)
+ {
++	if (vx_check_bit(VXC_CAP_MASK, cap) && !vx_mcaps(1L << cap))
++		return 0;
+ 	if (security_ops->capable(current, cap)) {
+ 		/* capability denied */
+ 		return 0;
+@@ -195,9 +197,24 @@ int capable(int cap)
+ 	return 1;
+ }
+ 
++int vx_capable(int cap, int ccap)
++{
++	if (security_ops->capable(current, cap)) {
++		/* capability denied */
++		return 0;
++	}
++	if (!vx_ccaps(ccap))
++		return 0;
++
++	/* capability granted */
++	current->flags |= PF_SUPERPRIV;
++	return 1;
++}
++
+ EXPORT_SYMBOL_GPL(register_security);
+ EXPORT_SYMBOL_GPL(unregister_security);
+ EXPORT_SYMBOL_GPL(mod_reg_security);
+ EXPORT_SYMBOL_GPL(mod_unreg_security);
+ EXPORT_SYMBOL(capable);
++EXPORT_SYMBOL(vx_capable);
+ EXPORT_SYMBOL(security_ops);
diff --git a/vserver-sources/old/2.0.1-r2/4911_vs2.0.1-2.6.15-vesafb-tng-fix.patch b/vserver-sources/old/2.0.1-r2/4911_vs2.0.1-2.6.15-vesafb-tng-fix.patch
new file mode 100644
index 0000000..3d75edc
--- /dev/null
+++ b/vserver-sources/old/2.0.1-r2/4911_vs2.0.1-2.6.15-vesafb-tng-fix.patch
@@ -0,0 +1,12 @@
+Index: vs2.0.1-2.6.15/drivers/video/vesafb-tng.c
+===================================================================
+--- vs2.0.1-2.6.15.orig/drivers/video/vesafb-tng.c
++++ vs2.0.1-2.6.15/drivers/video/vesafb-tng.c
+@@ -17,6 +17,7 @@
+ #include <linux/ioport.h>
+ #include <linux/init.h>
+ #include <linux/proc_fs.h>
++#include <linux/vs_cvirt.h>
+ #include <linux/completion.h>
+ #include <linux/platform_device.h>
+ #include <video/edid.h>
diff --git a/vserver-sources/old/2.0.1-r2/4913_vs2.0.1-2.6.15-misc-fixes.patch b/vserver-sources/old/2.0.1-r2/4913_vs2.0.1-2.6.15-misc-fixes.patch
new file mode 100644
index 0000000..84bb502
--- /dev/null
+++ b/vserver-sources/old/2.0.1-r2/4913_vs2.0.1-2.6.15-misc-fixes.patch
@@ -0,0 +1,36 @@
+Index: vs2.0.1-2.6.15/include/linux/sched.h
+===================================================================
+--- vs2.0.1-2.6.15.orig/include/linux/sched.h
++++ vs2.0.1-2.6.15/include/linux/sched.h
+@@ -258,27 +258,23 @@ extern void arch_unmap_area_topdown(stru
+  */
+ #ifdef ATOMIC64_INIT
+ typedef atomic64_t mm_counter_t;
+-#define __set_mm_counter(mm, member, value) atomic64_set(&(mm)->_##member, value)
+-#define set_mm_counter(mm, member, value) vx_ ## member ## pages64_sub((mm), \
+-	(get_mm_counter(mm, member) - value))
+ #define get_mm_counter(mm, member) ((unsigned long)atomic64_read(&(mm)->_##member))
+-#define add_mm_counter(mm, member, value) vx_ ## member ## pages64_add((mm), (value))
+-#define inc_mm_counter(mm, member) vx_ ## member ## pages64_inc((mm))
+-#define dec_mm_counter(mm, member) vx_ ## member ## pages64_dec((mm))
++#define __set_mm_counter(mm, member, value) atomic64_set(&(mm)->_##member, value)
+ #else /* !ATOMIC64_INIT */
+ /*
+  * The counters wrap back to 0 at 2^32 * PAGE_SIZE,
+  * that is, at 16TB if using 4kB page size.
+  */
+ typedef atomic_t mm_counter_t;
++#define get_mm_counter(mm, member) ((unsigned long)atomic_read(&(mm)->_##member))
+ #define __set_mm_counter(mm, member, value) atomic_set(&(mm)->_##member, value)
++#endif /* !ATOMIC64_INIT */
++
+ #define set_mm_counter(mm, member, value) vx_ ## member ## pages_sub((mm), \
+ 	(get_mm_counter(mm, member) - value))
+-#define get_mm_counter(mm, member) ((unsigned long)atomic_read(&(mm)->_##member))
+ #define add_mm_counter(mm, member, value) vx_ ## member ## pages_add((mm), (value))
+ #define inc_mm_counter(mm, member) vx_ ## member ## pages_inc((mm))
+ #define dec_mm_counter(mm, member) vx_ ## member ## pages_dec((mm))
+-#endif /* !ATOMIC64_INIT */
+ 
+ #else  /* NR_CPUS < CONFIG_SPLIT_PTLOCK_CPUS */
+ /*