mirror of
https://github.com/OpenRC/openrc.git
synced 2024-11-27 03:44:16 +08:00
Make cgroup_cleanup send only one sigterm and sigkill
Instead of looping and sending multiple signals to child processes in cgroup_cleanup, we send sigterm followed by sleeping one second then sigkill. This brings us more in line with systemd's "control group" killmode setting. Also, this commit includes several shellcheck cleanups.
This commit is contained in:
William Hubbs
parent
8885580986
commit
2b0345165e
@ -365,9 +365,9 @@ while [ -n "$1" ]; do
|
||||
then
|
||||
"$1"_post || exit $?
|
||||
fi
|
||||
[ "$(command -v cgroup_cleanup)" = "cgroup_cleanup" -a \
|
||||
"$1" = "stop" ] && \
|
||||
yesno "${rc_cgroup_cleanup}" && \
|
||||
[ "$(command -v cgroup_cleanup)" = "cgroup_cleanup" ] &&
|
||||
[ "$1" = "stop" ] &&
|
||||
yesno "${rc_cgroup_cleanup}" && \
|
||||
cgroup_cleanup
|
||||
if [ "$(command -v cgroup2_remove)" = "cgroup2_remove" ]; then
|
||||
[ "$1" = stop ] || [ -z "${command}" ] &&
|
||||
|
||||
@ -14,46 +14,56 @@ description_cgroup_cleanup="Kill all processes in the cgroup"
|
||||
|
||||
cgroup_find_path()
|
||||
{
|
||||
local OIFS n name dir result
|
||||
local OIFS name dir result
|
||||
[ -n "$1" ] || return 0
|
||||
OIFS="$IFS"
|
||||
IFS=":"
|
||||
while read n name dir; do
|
||||
while read -r _ name dir; do
|
||||
[ "$name" = "$1" ] && result="$dir"
|
||||
done < /proc/1/cgroup
|
||||
IFS="$OIFS"
|
||||
echo $result
|
||||
printf "%s" "${result}"
|
||||
}
|
||||
|
||||
cgroup_get_pids()
|
||||
{
|
||||
local p
|
||||
pids=
|
||||
while read p; do
|
||||
[ $p -eq $$ ] || pids="${pids} ${p}"
|
||||
done < /sys/fs/cgroup/openrc/${RC_SVCNAME}/tasks
|
||||
[ -n "$pids" ]
|
||||
local cgroup_procs p pids
|
||||
cgroup_procs="$(cgroup2_find_path)"
|
||||
[ -n "${cgroup_procs}" ] &&
|
||||
cgroup_procs="${cgroup_procs}/${RC_SVCNAME}/cgroup.procs" ||
|
||||
cgroup_procs="/sys/fs/cgroup/openrc/${RC_SVCNAME}/tasks"
|
||||
[ -f "${cgroup_procs}" ] || return 0
|
||||
while read -r p; do
|
||||
[ "$p" -eq $$ ] || pids="${pids} ${p}"
|
||||
done < "${cgroup_procs}"
|
||||
printf "%s" "${pids}"
|
||||
return 0
|
||||
}
|
||||
|
||||
cgroup_running()
|
||||
{
|
||||
[ -d "/sys/fs/cgroup/openrc/${RC_SVCNAME}" ]
|
||||
[ -d "/sys/fs/cgroup/unified/${RC_SVCNAME}" ] ||
|
||||
[ -d "/sys/fs/cgroup/${RC_SVCNAME}" ] ||
|
||||
[ -d "/sys/fs/cgroup/openrc/${RC_SVCNAME}" ]
|
||||
}
|
||||
|
||||
cgroup_set_values()
|
||||
{
|
||||
[ -n "$1" -a -n "$2" -a -d "/sys/fs/cgroup/$1" ] || return 0
|
||||
[ -n "$1" ] && [ -n "$2" ] && [ -d "/sys/fs/cgroup/$1" ] || return 0
|
||||
|
||||
local controller="$1" h=$(cgroup_find_path "$1")
|
||||
local controller h
|
||||
controller="$1"
|
||||
h=$(cgroup_find_path "$1")
|
||||
cgroup="/sys/fs/cgroup/${1}${h}openrc_${RC_SVCNAME}"
|
||||
[ -d "$cgroup" ] || mkdir -p "$cgroup"
|
||||
|
||||
set -- $2
|
||||
local name val
|
||||
while [ -n "$1" -a "$controller" != "cpuacct" ]; do
|
||||
while [ -n "$1" ] && [ "$controller" != "cpuacct" ]; do
|
||||
case "$1" in
|
||||
$controller.*)
|
||||
if [ -n "$name" -a -w "$cgroup/$name" -a -n "$val" ]; then
|
||||
if [ -n "${name}" ] && [ -w "${cgroup}/${name}" ] &&
|
||||
[ -n "${val}" ]; then
|
||||
veinfo "$RC_SVCNAME: Setting $cgroup/$name to $val"
|
||||
printf "%s" "$val" > "$cgroup/$name"
|
||||
fi
|
||||
@ -68,7 +78,7 @@ cgroup_set_values()
|
||||
esac
|
||||
shift
|
||||
done
|
||||
if [ -n "$name" -a -w "$cgroup/$name" -a -n "$val" ]; then
|
||||
if [ -n "${name}" ] && [ -w "${cgroup}/${name}" ] && [ -n "${val}" ]; then
|
||||
veinfo "$RC_SVCNAME: Setting $cgroup/$name to $val"
|
||||
printf "%s" "$val" > "$cgroup/$name"
|
||||
fi
|
||||
@ -145,7 +155,8 @@ cgroup2_find_path()
|
||||
|
||||
cgroup2_remove()
|
||||
{
|
||||
local cgroup_path="$(cgroup2_find_path)" rc_cgroup_path
|
||||
local cgroup_path rc_cgroup_path
|
||||
cgroup_path="$(cgroup2_find_path)"
|
||||
[ -z "${cgroup_path}" ] && return 0
|
||||
rc_cgroup_path="${cgroup_path}/${RC_SVCNAME}"
|
||||
[ ! -d "${rc_cgroup_path}" ] ||
|
||||
@ -154,7 +165,7 @@ cgroup2_remove()
|
||||
grep -qx "$$" "${rc_cgroup_path}/cgroup.procs" &&
|
||||
echo 0 > "${cgroup_path}/cgroup.procs"
|
||||
local key populated vvalue
|
||||
while read key value; do
|
||||
while read -r key value; do
|
||||
case "${key}" in
|
||||
populated) populated=${value} ;;
|
||||
*) ;;
|
||||
@ -167,7 +178,8 @@ cgroup2_remove()
|
||||
|
||||
cgroup2_set_limits()
|
||||
{
|
||||
local cgroup_path="$(cgroup2_find_path)"
|
||||
local cgroup_path
|
||||
cgroup_path="$(cgroup2_find_path)"
|
||||
[ -z "${cgroup_path}" ] && return 0
|
||||
rc_cgroup_path="${cgroup_path}/${RC_SVCNAME}"
|
||||
local OIFS="$IFS"
|
||||
@ -175,7 +187,7 @@ cgroup2_set_limits()
|
||||
"
|
||||
[ ! -d "${rc_cgroup_path}" ] && mkdir "${rc_cgroup_path}"
|
||||
echo 0 > "${rc_cgroup_path}/cgroup.procs"
|
||||
echo "${rc_cgroup_settings}" | while IFS="$OIFS" read key value; do
|
||||
echo "${rc_cgroup_settings}" | while IFS="$OIFS" read -r key value; do
|
||||
[ -z "${key}" ] || [ -z "${value}" ] && continue
|
||||
[ ! -e "${rc_cgroup_path}/${key}" ] && continue
|
||||
veinfo "${RC_SVCNAME}: cgroups: ${key} ${value}"
|
||||
@ -189,17 +201,13 @@ cgroup_cleanup()
|
||||
{
|
||||
cgroup_running || return 0
|
||||
ebegin "starting cgroups cleanup"
|
||||
for sig in TERM QUIT INT; do
|
||||
cgroup_get_pids || { eend 0 "finished" ; return 0 ; }
|
||||
for i in 0 1; do
|
||||
kill -s $sig $pids
|
||||
for j in 0 1 2; do
|
||||
cgroup_get_pids || { eend 0 "finished" ; return 0 ; }
|
||||
sleep 1
|
||||
done
|
||||
done 2>/dev/null
|
||||
done
|
||||
cgroup_get_pids || { eend 0 "finished" ; return 0; }
|
||||
kill -9 $pids
|
||||
eend $(cgroup_running && echo 1 || echo 0) "fail to stop all processes"
|
||||
local pids
|
||||
pids="$(cgroup_get_pids)"
|
||||
if [ -n "${pids}" ]; then
|
||||
kill -s TERM "${pids}"
|
||||
sleep 1
|
||||
pids="$(cgroup_get_pids)"
|
||||
[ -n "${pids}" ] &&
|
||||
kill -s KILL "${pids}"
|
||||
fi
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user