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memcg: __mem_cgroup_free: remove stale disarm_static_keys comment

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cpuset code stopped using cgroup_lock in favor of cpuset_mutex long ago.

Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Vladimir Davydov 2014-12-12 16:54:50 -08:00 committed by Linus Torvalds
parent b5be83e308
commit bfda7e8fe4
1 changed files with 0 additions and 11 deletions
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11
mm/memcontrol.c
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@ -4724,17 +4724,6 @@ static void __mem_cgroup_free(struct mem_cgroup *memcg)
free_percpu(memcg->stat); free_percpu(memcg->stat);
/*
* We need to make sure that (at least for now), the jump label
* destruction code runs outside of the cgroup lock. This is because
* get_online_cpus(), which is called from the static_branch update,
* can't be called inside the cgroup_lock. cpusets are the ones
* enforcing this dependency, so if they ever change, we might as well.
*
* schedule_work() will guarantee this happens. Be careful if you need
* to move this code around, and make sure it is outside
* the cgroup_lock.
*/
disarm_static_keys(memcg); disarm_static_keys(memcg);
kfree(memcg); kfree(memcg);
} }