sched/fair: Fix reschedule which is generated on throttled cfs_rq
authorKirill Tkhai <ktkhai@parallels.com>
Wed, 6 Aug 2014 08:06:01 +0000 (12:06 +0400)
committerIngo Molnar <mingo@kernel.org>
Wed, 20 Aug 2014 07:47:20 +0000 (09:47 +0200)
commitf36c019c79edb3a89920afae1b2b45987af1a112
tree7fcc40c94e81fdf5db5bbf5015912bbb08cf78ea
parent8b06c55bdb8b402cb4814e83dc4b1cb245fcc9f5
sched/fair: Fix reschedule which is generated on throttled cfs_rq

(sched_entity::on_rq == 1) does not guarantee the task is pickable;
changes on throttled cfs_rq must not lead to reschedule.

Check for task_struct::on_rq instead.

Signed-off-by: Kirill Tkhai <ktkhai@parallels.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1407312361.8424.35.camel@tkhai
Signed-off-by: Ingo Molnar <mingo@kernel.org>
kernel/sched/fair.c