X-Git-Url: http://git.linux-vserver.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=scripts%2Fvserver.functions;h=63d1badb44a7532dde1cfbfd865612c4792075f4;hb=569b1bfe1e5954fa083532dc37d2fe7418ec2d4a;hp=26edb7b992a8e64ed9f83d6b8881dc0e809985bc;hpb=c6b6501baad7853eab4109df1fde398a7303cc13;p=util-vserver.git diff --git a/scripts/vserver.functions b/scripts/vserver.functions index 26edb7b..63d1bad 100644 --- a/scripts/vserver.functions +++ b/scripts/vserver.functions @@ -20,6 +20,7 @@ # $VSERVER_NAME ... name of vserver declare -a NICE_CMD=() +declare -a IONICE_CMD=() declare -a CHBIND_CMD=() declare -a CAP_OPTS=() declare -a CHCONTEXT_INIT_OPTS=() @@ -40,13 +41,14 @@ declare -a ENTER_SHELL=() declare -a OPTS_VCONTEXT_CREATE=() declare -a OPTS_VCONTEXT_MIGRATE=() declare -a OPTS_VCONTEXT_ENTER=() +OPT_VCONTEXT_CHROOT=--chroot declare -a OPTS_VATTRIBUTE=( --flag fakeinit ) declare -a OPTS_VSCHED=() declare -a OPTS_ENV=() declare -a OPTS_VTAG_CREATE=() declare -a OPTS_VTAG_ENTER=() declare -a OPTS_VMEMCTRL=() -declare -a OPTS_VSPACE=() +declare -a OPTS_VSPACE=( --default ) declare -a STOPCMD_PREPARE=() @@ -70,6 +72,10 @@ N_CONTEXT= SILENT_OPT= +CGROUP_MNT=/dev/cgroup +CGROUP_SUBSYS=all +declare -a CGROUP_INHERIT=( cpuset.cpus cpuset.mems ) + : ${VSERVER_NAME:=$(basename "$VSERVER_DIR")} if test -e "$VSERVER_DIR"/noisy -o -n "$OPTION_VERBOSE"; then @@ -135,6 +141,17 @@ function _generateNiceCommand NICE_CMD=( $_NICE -n $nice ) } +function _generateIONiceCommand +{ + local vdir=$1 + local ionice_class=2 + local ionice_priority=0 + + test -r "$vdir/ionice/class" && read ionice_class <"$vdir"/ionice/class + test -r "$vdir/ionice/priority" && read ionice_priority <"$vdir"/ionice/priority + + IONICE_CMD=( $_IONICE -c$ionice_class -n$ionice_priority ) +} function _generatePersonalityOptions { @@ -330,6 +347,13 @@ function _generateInitOptions INITCMD_PREPARE=( $_FAKE_RUNLEVEL 3 /var/run/utmp ) ;; + (xarch) + test -n "$RUNLEVEL_START" || RUNLEVEL_START=3 + INITCMD_START=( /etc/rc.multi ) + INITCMD_STOP=( /etc/rc.shutdown ) + INITCMD_PREPARE=( $_FAKE_RUNLEVEL "$RUNLEVEL_START" /var/run/utmp ) + ;; + (x) ;; (*) panic "Unknown init-style '$INITSTYLE'; aborting";; esac @@ -358,10 +382,12 @@ function _generateInitOptions function _generateFlagOptions { local vdir=$1 + local file CHCONTEXT_FLAG_OPTS=() - test ! -e "$vdir"/flags || \ + findFile file "$vdir"/cflags "$vdir"/flags "" + test -z "$file" || \ while read flag; do case x"$flag" in (x|x\#*) ;; @@ -375,11 +401,13 @@ function _generateFlagOptions --flag "$flag" ) ;; esac - done <"$vdir"/flags + done <"$file" isAvoidNamespace "$vdir" || { USE_VNAMESPACE=1 CHCONTEXT_FLAG_OPTS=( "${CHCONTEXT_FLAG_OPTS[@]}" --flag namespace ) + ! $_VSERVER_INFO - FEATURE PIVOT_ROOT || \ + OPT_VCONTEXT_CHROOT=--pivot-root } } @@ -757,8 +785,8 @@ function _generateSpaceOptions local vdir="$1" local d="$vdir"/spaces - test ! -e "$d"/pid || \ - OPTS_VSPACE=( "${OPTS_VSPACE[@]}" --pid ) + ( test ! -e "$d"/pid ) || \ + OPTS_VSPACE=( "${OPTS_VSPACE[@]}" --pid ) test ! -e "$d"/net || { OPTS_VSPACE=( "${OPTS_VSPACE[@]}" --net ) @@ -811,6 +839,7 @@ function generateOptions _generateInterfaceOptions "$1" test -n "$_HAVE_CHBIND_OPTIONS" || _generateChbindOptions "$1" _generateNiceCommand "$1" + _generateIONiceCommand "$1" _generateInitOptions "$1" _generateChcontextOptions "$1" _generateScheduleOptions "$1" @@ -818,6 +847,7 @@ function generateOptions _generateTagOptions "$1" _generateMemctrlOptions "$1" _generateSpaceOptions "$1" + _generateCgroupOptions if test -n "$_IS_FAKEINIT"; then CHCONTEXT_INIT_OPTS=( --disconnect --flag fakeinit ) @@ -913,6 +943,8 @@ function mountVserver local ns_opt=$2 local vdir=$1/vdir local mtab_src + local extra_opt= + local real_vdir test -e "$cfgdir"/fstab -o \ -e "$cfgdir"/fstab.local -o \ @@ -933,8 +965,11 @@ function mountVserver isNamespaceCleanup "$cfgdir" && \ _namespaceCleanup "$cfgdir" + real_vdir=$(getPhysicalDir "$vdir") + ! $_VSERVER_INFO - FEATURE PIVOT_ROOT || \ + extra_opt=,shared isAvoidNamespace "$cfgdir" || \ - $_SECURE_MOUNT --rbind -n "$vdir" "/" + $_SECURE_MOUNT --rbind -n -o dev$extra_opt "$vdir" "$real_vdir" } function _umountVserverInternal @@ -1019,7 +1054,7 @@ function initWait rc=$? if test "$rc" -ne 0 -a "$rc" -ne 1; then - $_VPS axf | $_EGREP -e "^[^ \t]+[ \t]+$S_CONTEXT[ \t]+" >&4 + $_VPS axf | $_EGREP -e "^[ \t]*[^ \t]+[ \t]+$S_CONTEXT[ \t]+" >&4 killContext "$S_CONTEXT" 9 fi @@ -1351,7 +1386,7 @@ function _namespaceCleanup done < /proc/mounts # separate loop to avoid races while reading /proc/mounts for i in "${list_umount[@]}"; do - $_UMOUNT -l -n "$i" + $_UMOUNT -l -n -i "$i" done } @@ -1382,3 +1417,91 @@ function handleDeviceMap $_VDEVMAP --xid "$xid" "$op" "${vdevmap_opts[@]}" || return $? done } + +function hasCgroup +{ + $_GREP -q "cgroup" /proc/filesystems +} + +function _generateCgroupOptions +{ + local file + + hasCgroup || return 0 + + findFile file "$__CONFDIR/.defaults/cgroup/mnt" "" + if test -n "$file"; then + read CGROUP_MNT < "$file" + fi + findFile file "$__CONFDIR/.defaults/cgroup/subsys" "" + if test -n "$file"; then + read CGROUP_SUBSYS < "$file" + fi + findFile file "$__CONFDIR/.defaults/cgroup/inherit" "" + if test -n "$file"; then + _readFileToArray CGROUP_INHERIT "$file" "" + fi + + return 0 +} + +function useCgroup +{ + hasCgroup || return 1 + test -d "$CGROUP_MNT" || return 1 + test -d "$1/cgroup" -o \ + \( -d "$__CONFDIR/.defaults/cgroup" -a \ + ! -e "$1/nocgroup" \) +} + +function _handleCgroup +{ + local action="$1" + local vdir="$2" + local dir + local name + local i + local parent + + useCgroup "$vdir" || return 0 + + findDir dir "$vdir/cgroup" "$__CONFDIR/.defaults/cgroup" "" + test -d "$dir" || return 0 + + if test -r "$dir"/name; then + read name < "$dir"/name + else + name="$VSERVER_NAME" + fi + + if test "$action" = "attach"; then + if mkdir "$CGROUP_MNT/$name" 2>/dev/null; then + parent="$CGROUP_MNT/$name" + parent="${parent%/*}" + for i in "${CGROUP_INHERIT[@]}"; do + test -f "$parent/$i" || continue + cat "$parent/$i" > "$CGROUP_MNT/$name/$i" + done + + shopt -s nullglob + for i in "$dir"/*; do + cat "$i" > "$CGROUP_MNT/$name/${i##*/}" + done + fi + echo "$$" > "$CGROUP_MNT/$name/tasks" + elif test "$action" = "destroy"; then + rmdir "$CGROUP_MNT/$name" 2>/dev/null || : + fi + + return 0 +} + +function attachToCgroup +{ + _handleCgroup attach "$@" +} + +function destroyCgroup +{ + _handleCgroup destroy "$@" +}