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UPSTREAM: sched/fair: Fix task group initialization

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The moves of tasks are now propagated down to root and the utilization
of cfs_rq reflects reality so it doesn't need to be estimated at init.

Change-Id: I496f26d22cbbe38d78d683f7eeb389b997eb9035
Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Morten.Rasmussen@arm.com
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bsegall@google.com
Cc: kernellwp@gmail.com
Cc: pjt@google.com
Cc: yuyang.du@intel.com
Link: http://lkml.kernel.org/r/1478598827-32372-7-git-send-email-vincent.guittot@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
(cherry picked from commit d03266910a)
Signed-off-by: Quentin Perret <quentin.perret@arm.com>
This commit is contained in:
Vincent Guittot
2016-11-08 10:53:47 +01:00
committed by Todd Kjos
parent d870d26fb3
commit 4604331553
1 changed files with 1 additions and 1 deletions
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2
kernel/sched/fair.c
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@@ -10636,7 +10636,7 @@ void online_fair_sched_group(struct task_group *tg)
se = tg->se[i];
raw_spin_lock_irq(&rq->lock);
post_init_entity_util_avg(se);
attach_entity_cfs_rq(se);
sync_throttle(tg, i);
raw_spin_unlock_irq(&rq->lock);
}