linux-kernel - [PATCH 2/3] swap-token: makes global variables to function local

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Date:	Wed, 25 May 2011 12:12:55 +0900
From:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
To:	akpm@...ux-foundation.org
CC:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	kamezawa.hiroyu@...fujitsu.com, riel@...hat.com
Subject: [PATCH 2/3] swap-token: makes global variables to function local

global_faults and last_aging are only used in grab_swap_token().
Then, they can be moved into grab_swap_token().

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
---
 mm/thrash.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/thrash.c b/mm/thrash.c
index 0d41ff0..0504e8a 100644
--- a/mm/thrash.c
+++ b/mm/thrash.c
@@ -30,14 +30,14 @@
 static DEFINE_SPINLOCK(swap_token_lock);
 struct mm_struct *swap_token_mm;
 struct mem_cgroup *swap_token_memcg;
-static unsigned int global_faults;
-static unsigned int last_aging;

 void grab_swap_token(struct mm_struct *mm)
 {
 	int current_interval;
 	unsigned int old_prio = mm->token_priority;
 	struct mem_cgroup *memcg;
+	static unsigned int global_faults;
+	static unsigned int last_aging;

 	global_faults++;

-- 
1.7.3.1



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