From 8fd373548eed815858d7b5534971bdc64b4d8d2c Mon Sep 17 00:00:00 2001 From: Xunlei Pang Date: Sat, 4 Jul 2015 15:39:22 +0800 Subject: [PATCH] sched/rt: Remove a redundant condition from task_woken_rt() 'p' has been already queued at this point, so "!task_running(rq, p)" and "p->nr_cpus_allowed > 1" imply that "has_pushable_tasks(rq)" is true, so it can be removed. Signed-off-by: Xunlei Pang Signed-off-by: Peter Zijlstra (Intel) Acked-by: Steven Rostedt Cc: Juri Lelli Cc: Linus Torvalds Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/1435995563-3723-1-git-send-email-xlpang@126.com Signed-off-by: Ingo Molnar --- kernel/sched/rt.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c index 0d193a243e96..00816eeaa308 100644 --- a/kernel/sched/rt.c +++ b/kernel/sched/rt.c @@ -2069,7 +2069,6 @@ static void task_woken_rt(struct rq *rq, struct task_struct *p) { if (!task_running(rq, p) && !test_tsk_need_resched(rq->curr) && - has_pushable_tasks(rq) && p->nr_cpus_allowed > 1 && (dl_task(rq->curr) || rt_task(rq->curr)) && (rq->curr->nr_cpus_allowed < 2 || -- 2.34.1