Setting cpu limits reset number of cpus
# echo 2 >/sys/fs/cgroup/cpu,cpuacct/101/cpu.nr_cpus
# exec 101 cat /proc/cpuinfo |grep -c processor
2
# echo 160000 >/sys/fs/cgroup/cpu,cpuacct/101/cpu.cfs_quota_us
# vzctl exec 101 cat /proc/cpuinfo |grep -c processor
4
# cat /sys/fs/cgroup/cpu,cpuacct/101/cpu.nr_cpus
0
tg_update_cpu_limit() does that without any apparent reason,
so let's fix it,.
https://jira.sw.ru/browse/PSBM-48061
Signed-off-by: Andrey Ryabinin <[email protected]>
---
kernel/sched/core.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 2c147c8..51ebed2 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -8696,7 +8696,6 @@ static void tg_update_cpu_limit(struct task_group *tg)
}
tg->cpu_rate = rate;
- tg->nr_cpus = 0;
}
static int tg_set_cpu_limit(struct task_group *tg,
--
2.7.3
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