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Diffstat (limited to 'scripts/init.d/cgconfig.in')
| -rw-r--r-- | scripts/init.d/cgconfig.in | 248 |
1 files changed, 248 insertions, 0 deletions
diff --git a/scripts/init.d/cgconfig.in b/scripts/init.d/cgconfig.in new file mode 100644 index 0000000..543cb9f --- /dev/null +++ b/scripts/init.d/cgconfig.in @@ -0,0 +1,248 @@ +#!/bin/bash +# +# Start/Stop the workload manager +# +# Copyright IBM Corporation. 2008 +# +# Authors: Balbir Singh <balbir@linux.vnet.ibm.com> +# This program is free software; you can redistribute it and/or modify it +# under the terms of version 2.1 of the GNU Lesser General Public License +# as published by the Free Software Foundation. +# +# This program is distributed in the hope that it would be useful, but +# WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +# +# cgconfig Control Groups Configuration Startup +# chkconfig: - 5 95 +# description: This script runs the cgconfigparser utility to parse and setup +# the control group filesystem. It uses /etc/cgconfig.conf +# and parses the configuration specified in there. + +### BEGIN INIT INFO +# Provides: cgconfig +# Required-Start: +# Required-Stop: +# Should-Start: +# Should-Stop: +# Short-Description: start and stop the WLM configuration +# Description: This script allows us to create a default configuration +### END INIT INFO + +# get correct location of binaries from configure +prefix=@prefix@;exec_prefix=@exec_prefix@;sbindir=@sbindir@ +CGCONFIGPARSER_BIN=$sbindir/cgconfigparser +MOUNTS_FILE=/proc/mounts +PROC_CGROUPS_FILE=/proc/cgroups +CGROUP_FS=cgroup +CONFIG_FILE=/etc/cgconfig.conf + +# support multiple mount points +declare -a MOUNTPOINT +declare -a MOUNTOPTS +maxindex=0 +servicename=cgconfig + +# +# Source LSB routines +# +. /lib/lsb/init-functions + +parse_mounts() { + while read name mountpt fs opts other + do + if echo $name | grep -q $CGROUP_FS + then + maxindex=$(($maxindex+1)) + MOUNTPOINT[$maxindex]=$mountpt + MOUNTOPTS[$maxindex]=$opts + fi + done < $MOUNTS_FILE + + return 0; +} + +umount_fs() { + for i in `seq 1 $maxindex` + do + umount ${MOUNTPOINT[$i]} + rmdir ${MOUNTPOINT[$i]} + done +} + +start() { + echo -n "Starting cgconfig service: " + if [ -f /var/lock/subsys/$servicename ] + then + log_warning_msg "lock file already exists" + return + fi + + if [ $? -eq 0 ] + then + $CGCONFIGPARSER_BIN -l $CONFIG_FILE + retval=$? + if [ $retval -ne 0 ] + then + log_failure_msg "Failed to parse " $CONFIG_FILE + return $retval + fi + fi + + declare defaultcgroup + + if [ -f /etc/cgrules.conf ] + then + read user ctrl defaultcgroup <<< \ + `grep -m1 ^\* /etc/cgrules.conf` + if [[ -n $defaultcgroup && $defaultcgroup = "*" ]] + then + log_warning_msg "/etc/cgrules.conf incorrect" + log_warning_msg "Overriding it" + defaultcgroup= + fi + fi + + if [ -z $defaultcgroup ] + then + defaultcgroup=sysdefault/ + fi + # + # Create a default class for tasks to return back to + # + parse_mounts + for i in `seq 1 $maxindex` + do + # + # Ignore if directory already exists + # + mkdir ${MOUNTPOINT[$i]}/$defaultcgroup 2> /dev/null + chmod a+rw ${MOUNTPOINT[$i]}/$defaultcgroup/tasks + # + # special rule for cpusets + # + echo ${MOUNTOPTS[$i]} | grep -q -w cpuset + if [ $? -eq 0 ] + then + cat ${MOUNTPOINT[$i]}/cpuset.cpus > \ + ${MOUNTPOINT[$i]}/$defaultcgroup/cpuset.cpus + cat ${MOUNTPOINT[$i]}/cpuset.mems > \ + ${MOUNTPOINT[$i]}/$defaultcgroup/cpuset.mems + fi + # + # classify everything to default cgroup + # + for j in `ps --no-headers -eL o tid` + do + echo $j > ${MOUNTPOINT[$i]}/$defaultcgroup/tasks 2>/dev/null + done + done + + touch /var/lock/subsys/$servicename + retval=$? + if [ $retval -ne 0 ] + then + log_failure_msg "Failed to touch " /var/lock/subsys/$servicename + return $retval + fi + log_success_msg + return 0 +} + +move_all_to_init_class() { + for i in `seq 1 $maxindex` + do + cd ${MOUNTPOINT[$i]} + cat /proc/mounts | grep -wq ${MOUNTPOINT[$i]} + if [ $? -ne 0 ] + then + log_failure_msg "resource control filesystem not mounted" + exit 1 + fi + + for i in `find . -depth -type d` + do + case $i in + '.') + ;; + *) + class=${i#./*} + #log_progress_msg "Removing class $class" + sed -nu p < ./$i/tasks > tasks + rmdir $i + ;; + esac + done + cd - > /dev/null + done +} + + +stop() { + echo -n "Stopping cgconfig service: " + move_all_to_init_class + umount_fs + rm -f /var/lock/subsys/$servicename + log_success_msg +} + +trapped() { + # + # Do nothing + # + true +} + +usage() { + echo "$0 <start|stop|restart|condrestart|status>" + exit 1 +} + +common() { + # + # main script work done here + # + trap "trapped ABRT" ABRT + trap "trapped QUIT" QUIT + trap "trapped TERM" TERM + trap "trapped INT" INT + + parse_mounts +} + +case $1 in + 'stop') + common + stop; + ;; + 'start') + common + start; + ;; + 'restart') + common + stop + start + ;; + 'reload') + common + stop + start + ;; + 'condrestart') + if [ -f /var/lock/subsys/$servicename ] ; then + stop + start + fi + ;; + 'status') + if [ -f /var/lock/subsys/$servicename ] ; then + echo "Running" + else + echo "Stopped" + fi + ;; + *) + usage + ;; +esac |