linux-kernel - [PATCH 3/3] sched/rt: Remove redundant check before push_rt

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Message-ID: <4FBF2A1D.2090302@ct.jp.nec.com>
Date:	Fri, 25 May 2012 15:43:41 +0900
From:	Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
To:	Ingo Molnar <mingo@...e.hu>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [PATCH 3/3] sched/rt: Remove redundant check before push_rt_task()

From: Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>

Currently rq->rt.overloaded is checked twice in switched_to_rt().
Remove the first one which out of push_rt_task().

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@...jp.nec.com>
---
 kernel/sched/rt.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index c5565c3..a601a70 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -1907,7 +1907,7 @@ 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 (push_rt_task(rq) &&
 		    /* Don't resched if we changed runqueues */
 		    rq != task_rq(p))
 			check_resched = 0;
-- 
1.7.7.6

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