Commit-ID: cd66091162d34f589631a23bbe0ed214798245b4 Gitweb: http://git.kernel.org/tip/cd66091162d34f589631a23bbe0ed214798245b4 Author: Wanpeng Li <[email protected]> AuthorDate: Fri, 31 Oct 2014 06:39:35 +0800 Committer: Ingo Molnar <[email protected]> CommitDate: Tue, 4 Nov 2014 07:17:55 +0100
sched/deadline: Reschedule from switched_from_dl() after a successful pull In switched_from_dl() we have to issue a resched if we successfully pulled some task from other cpus. This patch also aligns the behavior with -rt. Suggested-by: Juri Lelli <[email protected]> Signed-off-by: Wanpeng Li <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Cc: Kirill Tkhai <[email protected]> Cc: Linus Torvalds <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> --- kernel/sched/deadline.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index e7779b3..362ab1f 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -1643,8 +1643,11 @@ static void switched_from_dl(struct rq *rq, struct task_struct *p) * this is the right place to try to pull some other one * from an overloaded cpu, if any. */ - if (!rq->dl.dl_nr_running) - pull_dl_task(rq); + if (!task_on_rq_queued(p) || rq->dl.dl_nr_running) + return; + + if (pull_dl_task(rq)) + resched_curr(rq); #endif } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
