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| author | Xunlei Pang <xlpang@redhat.com> | 2016-07-09 15:54:22 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-08-10 13:32:55 +0200 |
| commit | b8922125e4790fa237a8a4204562ecf457ef54bb (patch) | |
| tree | 4f11d2a54e54d5e1f5f2ec913df7a18723427f1f /kernel/sched | |
| parent | a23eadfae2fd45536a355b785d5a1533e1955c22 (diff) | |
| download | linux-0-day-b8922125e4790fa237a8a4204562ecf457ef54bb.tar.gz linux-0-day-b8922125e4790fa237a8a4204562ecf457ef54bb.tar.xz | |
sched/fair: Fix typo in sync_throttle()
We should update cfs_rq->throttled_clock_task, not
pcfs_rq->throttle_clock_task.
The effects of this bug was probably occasionally erratic
group scheduling, particularly in cgroups-intense workloads.
Signed-off-by: Xunlei Pang <xlpang@redhat.com>
[ Added changelog. ]
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: 55e16d30bd99 ("sched/fair: Rework throttle_count sync")
Link: http://lkml.kernel.org/r/1468050862-18864-1-git-send-email-xlpang@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/fair.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 4088eedea7637..039de34f15216 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -4269,7 +4269,7 @@ static void sync_throttle(struct task_group *tg, int cpu) pcfs_rq = tg->parent->cfs_rq[cpu]; cfs_rq->throttle_count = pcfs_rq->throttle_count; - pcfs_rq->throttled_clock_task = rq_clock_task(cpu_rq(cpu)); + cfs_rq->throttled_clock_task = rq_clock_task(cpu_rq(cpu)); } /* conditionally throttle active cfs_rq's from put_prev_entity() */ |