sys-fs/gfs/files/gfs.rc


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#!/sbin/runscript
# Copyright 1999-2005 Gentoo Foundation
# Distributed under the terms of the GNU General Public License, v2 or later
# $Header: /var/cvsroot/gentoo-x86/sys-fs/gfs/files/gfs.rc,v 1.1 2005/03/22 13:59:10 xmerlin Exp $

depend() {
	use dns logger
	use net gnbd-client
	need cluster-manager cluster-locking-manager fenced
	provide cluster
}

start() {
	einfo "Starting gfs cluster:"
	
	if [ ! -f /etc/ntp.conf ] ; then
		eerror "Please create /etc/ntp.conf"
		eerror "Sample conf: /usr/share/ntp/ntp.conf"
		eend 1
	fi
	
	local module
	
	# detect cluster/locking manager cman+dlm or gulm ?
	if [ -d /proc/cluster/config/cman ]; then
		if [ ! -d /proc/cluster/lock_dlm ]; then
			modules="${modules} lock_dlm"
		fi
	else
		if [ ! -d /proc/cluster/lock_gulm ]; then
			modules="${modules} lock_gulm"
		fi
	fi

	if [ ! -f /proc/fs/gfs ]; then
		modules="${modules} gfs"
	fi
	
	for module in ${modules}; do
		ebegin "Loading ${module} kernel module"
		modprobe ${module}
		
		if [ "$?" -ne 0 ]
		then
			ewend 1 "Failed to load ${module} kernel module"
		else
			eend 0
		fi
	done
	
	ebegin "Mounting GFS filesystems"
	mount -at gfs >/dev/null
	
	if [ "$?" -ne 0 ]
	then
		ewend 1 "Could not mount all GFS filesystems!"
	else
		eend 0
	fi
	
	return 0
}

stop() {
	einfo "Stopping gfs cluster:"
	
	local sig retry
	local remaining="$(awk '$3 ~ /gfs/ { if ($2 != "/") print $2 }' /proc/mounts | sort -r)"

	if [ -z "${remaining}" ]
	then
		ebegin "Unmounting GFS filesystems"
		eend 0
	else
	        sig=
	        retry=3
	        while [ -n "${remaining}" -a "${retry}" -gt 0 ]
	        do
	                if [ "${retry}" -lt 3 ]
			then
	                        ebegin "Unmounting GFS filesystems (retry)"
	                        umount ${remaining} &>/dev/null
	                        eend $? "Failed to unmount GFS filesystems this retry"
	                else
	                        ebegin "Unmounting GFS filesystems"
	                        umount ${remaining} &>/dev/null
	                        eend $? "Failed to unmount GFS filesystems"
	                fi
	                remaining="$(awk '$3 ~ /gfs/ { if ($2 != "/") print $2 }' /proc/mounts | sort -r)"
	                [ -z "${remaining}" ] && break
	                /bin/fuser -k -m ${sig} ${remaining} &>/dev/null
	                sleep 5
	                retry=$((${retry} -1))
	                sig=-9
	        done
	fi

	local module modules
	
	if [ -f /proc/fs/gfs ]; then
		modules="gfs"
	fi
	if [ -d /proc/cluster/lock_dlm ]; then
		modules="${modules} lock_dlm"
	fi
	if [ -d /proc/cluster/lock_gulm ]; then
		modules="${modules} lock_gulm"
	fi
	
	local module
	for module in ${modules}; do
		ebegin "Unloading ${module} kernel module"
		modprobe -r ${module}
		
		if [ "$?" -ne 0 ]
		then
			ewend 1 "Failed to unload ${module} kernel module"
		else
			eend 0
		fi
	done
	
	return 0
}