[PATCH] sched: don't awaken RT tasks on expired array
RT tasks are being awakened on the expired array when expired_starving() is
true, whereas they really should be excluded. Fix.
Signed-off-by: Mike Galbraith <efault@gmx.de>
Acked-by: Ingo Molnar <mingo@elte.hu>
Cc: Con Kolivas <kernel@kolivas.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/kernel/sched.c b/kernel/sched.c
index 2e8a146..365f0b9 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -713,7 +713,7 @@
{
prio_array_t *target = rq->active;
- if (unlikely(batch_task(p) || expired_starving(rq)))
+ if (unlikely(batch_task(p) || (expired_starving(rq) && !rt_task(p))))
target = rq->expired;
enqueue_task(p, target);
rq->nr_running++;