Commit-ID: 10447917551e0fffb8d1892d46e633c3e0a9c1ec Gitweb: http://git.kernel.org/tip/10447917551e0fffb8d1892d46e633c3e0a9c1ec Author: Kirill V Tkhai <[email protected]> AuthorDate: Wed, 12 Mar 2014 06:18:33 -0400 Committer: Ingo Molnar <[email protected]> CommitDate: Fri, 18 Apr 2014 12:07:23 +0200
sched/rt: Do not try to push tasks if pinned task switches to RT Just switched pinned task is not able to be pushed. If the rq had had several RT tasks before they have already been considered as candidates to be pushed (or pulled). Signed-off-by: Kirill V Tkhai <[email protected]> Acked-by: Steven Rostedt <[email protected]> Signed-off-by: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Cc: [email protected] Signed-off-by: Ingo Molnar <[email protected]> --- kernel/sched/rt.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c index bd2267a..1e4992e 100644 --- a/kernel/sched/rt.c +++ b/kernel/sched/rt.c @@ -1892,9 +1892,9 @@ static void switched_to_rt(struct rq *rq, struct task_struct *p) */ if (p->on_rq && rq->curr != p) { #ifdef CONFIG_SMP - if (rq->rt.overloaded && push_rt_task(rq) && + if (p->nr_cpus_allowed > 1 && rq->rt.overloaded && /* Don't resched if we changed runqueues */ - rq != task_rq(p)) + push_rt_task(rq) && rq != task_rq(p)) check_resched = 0; #endif /* CONFIG_SMP */ if (check_resched && p->prio < rq->curr->prio) -- 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/
