Commit 6b0a563f authored Oct 31, 2014 by Wanpeng Li Committed by Ingo Molnar Nov 04, 2014

sched/deadline: Push task away if the deadline is equal to curr during wakeup



This patch pushes task away if the dealine of the task is equal
to current during wake up. The same behavior as rt class.

Signed-off-by: Wanpeng Li <wanpeng.li@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Juri Lelli <juri.lelli@arm.com>
Cc: Kirill Tkhai <ktkhai@parallels.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/1414708776-124078-4-git-send-email-wanpeng.li@linux.intel.com


Signed-off-by: Ingo Molnar <mingo@kernel.org>

parent acb32132

kernel/sched/deadline.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -1506,7 +1506,7 @@ static void task_woken_dl(struct rq rq, struct task_struct p)
		p->nr_cpus_allowed > 1 &&
		dl_task(rq->curr) &&
		(rq->curr->nr_cpus_allowed < 2 \|\|
		dl_entity_preempt(&rq->curr->dl, &p->dl))) {
		!dl_entity_preempt(&p->dl, &rq->curr->dl))) {
		push_dl_tasks(rq);
		}
		}