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| author | Paul E. McKenney <paulmck@linux.ibm.com> | 2018-11-07 23:11:40 +0100 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.ibm.com> | 2018-12-01 21:38:49 +0100 |
| commit | 2af3024cd78f120d027cb44b454186ba9d7dab24 (patch) | |
| tree | 83708ea7c32d4c839565d384a6996a9123c5bdec /kernel/cgroup/cgroup.c | |
| parent | types: Remove call_rcu_bh() and call_rcu_sched() (diff) | |
| download | linux-2af3024cd78f120d027cb44b454186ba9d7dab24.tar.xz linux-2af3024cd78f120d027cb44b454186ba9d7dab24.zip | |
cgroups: Replace synchronize_sched() with synchronize_rcu()
Now that synchronize_rcu() waits for preempt-disable regions of code
as well as RCU read-side critical sections, synchronize_sched() can be
replaced by synchronize_rcu(). This commit therefore makes this change,
even though it is but a comment.
Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: "Dennis Zhou (Facebook)" <dennisszhou@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'kernel/cgroup/cgroup.c')
| -rw-r--r-- | kernel/cgroup/cgroup.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c index 6aaf5dd5383b..7a8429f8e280 100644 --- a/kernel/cgroup/cgroup.c +++ b/kernel/cgroup/cgroup.c @@ -5343,7 +5343,7 @@ int __init cgroup_init(void) cgroup_rstat_boot(); /* - * The latency of the synchronize_sched() is too high for cgroups, + * The latency of the synchronize_rcu() is too high for cgroups, * avoid it at the cost of forcing all readers into the slow path. */ rcu_sync_enter_start(&cgroup_threadgroup_rwsem.rss); |