Commit d0326691 authored Nov 08, 2016 by Vincent Guittot Committed by Ingo Molnar Nov 16, 2016

sched/fair: Fix task group initialization



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.

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>

parent 4e516076

kernel/sched/fair.c

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -9198,7 +9198,7 @@ void online_fair_sched_group(struct task_group *tg)
	se = tg->se[i];		se = tg->se[i];

	raw_spin_lock_irq(&rq->lock);		raw_spin_lock_irq(&rq->lock);
	post_init_entity_util_avg(se);		attach_entity_cfs_rq(se);
	sync_throttle(tg, i);		sync_throttle(tg, i);
	raw_spin_unlock_irq(&rq->lock);		raw_spin_unlock_irq(&rq->lock);
	}		}

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