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authorKirill Tkhai <tkhai@yandex.ru>2012-11-22 21:02:15 +0100
committerIngo Molnar <mingo@kernel.org>2013-01-24 17:14:30 +0100
commit1158ddb55416855fd17abe3214298f736f00426a (patch)
tree493bc349d3e2b33b6c851ff72b2b15b7cc683ee8 /kernel/sched/rt.c
parentsched: Fix the broken sched_rr_get_interval() (diff)
downloadlinux-1158ddb55416855fd17abe3214298f736f00426a.tar.xz
linux-1158ddb55416855fd17abe3214298f736f00426a.zip
sched/rt: Add reschedule check to switched_from_rt()
Reschedule rq->curr if the first RT task has just been pulled to the rq. Signed-off-by: Kirill V Tkhai <tkhai@yandex.ru> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Tkhai Kirill <tkhai@yandex.ru> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/118761353614535@web28f.yandex.ru Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched/rt.c')
-rw-r--r--kernel/sched/rt.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index 418feb01344e..29bda5bdf2a5 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -1889,8 +1889,11 @@ static void switched_from_rt(struct rq *rq, struct task_struct *p)
* we may need to handle the pulling of RT tasks
* now.
*/
- if (p->on_rq && !rq->rt.rt_nr_running)
- pull_rt_task(rq);
+ if (!p->on_rq || rq->rt.rt_nr_running)
+ return;
+
+ if (pull_rt_task(rq))
+ resched_task(rq->curr);
}
void init_sched_rt_class(void)