[tip:sched/core] sched/fair: Fix task group initialization

From: tip-bot for Vincent Guittot
Date: Wed Nov 16 2016 - 07:18:28 EST

Commit-ID: d03266910a533d874c01ef2ca8dc73009f2925fa
Gitweb: http://git.kernel.org/tip/d03266910a533d874c01ef2ca8dc73009f2925fa
Author: Vincent Guittot <vincent.guittot@xxxxxxxxxx>
AuthorDate: Tue, 8 Nov 2016 10:53:47 +0100
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Wed, 16 Nov 2016 10:29:11 +0100

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@xxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Acked-by: Dietmar Eggemann <dietmar.eggemann@xxxxxxx>
Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>
Cc: Morten.Rasmussen@xxxxxxx
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: bsegall@xxxxxxxxxx
Cc: kernellwp@xxxxxxxxx
Cc: pjt@xxxxxxxxxx
Cc: yuyang.du@xxxxxxxxx
Link: http://lkml.kernel.org/r/1478598827-32372-7-git-send-email-vincent.guittot@xxxxxxxxxx
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
kernel/sched/fair.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 090a9bb..02605f2 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -9198,7 +9198,7 @@ void online_fair_sched_group(struct task_group *tg)
se = tg->se[i];

- post_init_entity_util_avg(se);
+ attach_entity_cfs_rq(se);
sync_throttle(tg, i);