Commit d95f98d0 authored Nov 04, 2008 by Peter Zijlstra Committed by Ingo Molnar Nov 05, 2008

sched: fix fair preempt check



Impact: fix cross-class preemption

Inter-class wakeup preemptions should go on class order.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent f4b6755f

kernel/sched_fair.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1329,6 +1329,9 @@ static void check_preempt_wakeup(struct rq rq, struct task_struct p, int sync)
		return;
		}

		if (unlikely(p->sched_class != &fair_sched_class))
		return;

		if (unlikely(se == pse))
		return;