linux-kernel - [PATCH] sched/fair: tiny clearup of -1

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Message-Id: <1417759365-28787-1-git-send-email-jun.zhang@intel.com>
Date:	Fri,  5 Dec 2014 14:02:45 +0800
From:	jun.zhang@...el.com
To:	mingo@...hat.com, peterz@...radead.org
Cc:	linux-kernel@...r.kernel.org, zhang jun <jun.zhang@...el.com>,
	Chuansheng Liu <chuansheng.liu@...el.com>,
	Changcheng Liu <changcheng.liu@...el.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Hillf Danton <hillf.zj@...baba-inc.com>,
	Vincent Guittot <vincent.guittot@...aro.org>
Subject: [PATCH] sched/fair: tiny clearup of -1

From: zhang jun <jun.zhang@...el.com>

find_idlest_cpu don't return -1, so clearup it.

Signed-off-by: zhang jun <jun.zhang@...el.com>
Signed-off-by: Chuansheng Liu <chuansheng.liu@...el.com>
Signed-off-by: Changcheng Liu <changcheng.liu@...el.com>
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: Hillf Danton <hillf.zj@...baba-inc.com>
Cc: Vincent Guittot <vincent.guittot@...aro.org>
---
 kernel/sched/fair.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index ef2b104..bbf965f 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -4596,7 +4596,7 @@ select_task_rq_fair(struct task_struct *p, int prev_cpu, int sd_flag, int wake_f
 		}
 
 		new_cpu = find_idlest_cpu(group, p, cpu);
-		if (new_cpu == -1 || new_cpu == cpu) {
+		if (new_cpu == cpu) {
 			/* Now try balancing at a lower domain level of cpu */
 			sd = sd->child;
 			continue;
-- 
1.7.9.5

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