linux-kernel - [PATCH v4 11/12] sched/numa: drop unnecessary variable in task

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Message-Id: <1386667175-19952-11-git-send-email-liwanp@linux.vnet.ibm.com>
Date:	Tue, 10 Dec 2013 17:19:34 +0800
From:	Wanpeng Li <liwanp@...ux.vnet.ibm.com>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	Ingo Molnar <mingo@...hat.com>
Cc:	Rik van Riel <riel@...hat.com>, Mel Gorman <mgorman@...e.de>,
	Peter Zijlstra <peterz@...radead.org>,
	Naoya Horiguchi <n-horiguchi@...jp.nec.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Wanpeng Li <liwanp@...ux.vnet.ibm.com>
Subject: [PATCH v4 11/12] sched/numa: drop unnecessary variable in task_weight

Drop unnecessary total_faults variable in function task_weight to unify
task_weight and group_weight.

Reviewed-by: Naoya Horiguchi <n-horiguchi@...jp.nec.com>
Signed-off-by: Wanpeng Li <liwanp@...ux.vnet.ibm.com>
---
 kernel/sched/fair.c |   11 ++---------
 1 files changed, 2 insertions(+), 9 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index d51b8c3..5ff86ec 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -947,17 +947,10 @@ static inline unsigned long group_faults(struct task_struct *p, int nid)
  */
 static inline unsigned long task_weight(struct task_struct *p, int nid)
 {
-	unsigned long total_faults;
-
-	if (!p->numa_faults)
-		return 0;
-
-	total_faults = p->total_numa_faults;
-
-	if (!total_faults)
+	if (!p->numa_faults || !p->total_numa_faults)
 		return 0;
 
-	return 1000 * task_faults(p, nid) / total_faults;
+	return 1000 * task_faults(p, nid) / p->total_numa_faults;
 }
 
 static inline unsigned long group_weight(struct task_struct *p, int nid)
-- 
1.7.7.6

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