linux-kernel - [PATCH] cfs: remove unused 'if' condition checking

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Date:	Fri, 16 Sep 2011 13:35:52 -0400
From:	Wang Xingchao <xingchao.wang@...el.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...e.hu, peterz@...radead.org, yong.zhang0@...il.com,
	Wang Xingchao <xingchao.wang@...el.com>
Subject: [PATCH] cfs: remove unused 'if' condition checking

nr_running must be more than 1, so remove the checking

Signed-off-by: Wang Xingchao <xingchao.wang@...el.com>
---
 kernel/sched_fair.c |   16 ++++++++--------
 1 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index 1ca2cd4..fef0bfd 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -1106,6 +1106,8 @@ static void
 check_preempt_tick(struct cfs_rq *cfs_rq, struct sched_entity *curr)
 {
 	unsigned long ideal_runtime, delta_exec;
+	struct sched_entity *se;
+	s64 delta;
 
 	ideal_runtime = sched_slice(cfs_rq, curr);
 	delta_exec = curr->sum_exec_runtime - curr->prev_sum_exec_runtime;
@@ -1127,16 +1129,14 @@ check_preempt_tick(struct cfs_rq *cfs_rq, struct sched_entity *curr)
 	if (delta_exec < sysctl_sched_min_granularity)
 		return;
 
-	if (cfs_rq->nr_running > 1) {
-		struct sched_entity *se = __pick_first_entity(cfs_rq);
-		s64 delta = curr->vruntime - se->vruntime;
+	se = __pick_first_entity(cfs_rq);
+	delta = curr->vruntime - se->vruntime;
 
-		if (delta < 0)
-			return;
+	if (delta < 0)
+		return;
 
-		if (delta > ideal_runtime)
-			resched_task(rq_of(cfs_rq)->curr);
-	}
+	if (delta > ideal_runtime)
+		resched_task(rq_of(cfs_rq)->curr);
 }
 
 static void
-- 
1.7.1

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