mm: swap-token: makes global variables to function local
KOSAKI Motohiro [Tue, 26 Jul 2011 00:12:07 +0000 (17:12 -0700)]
global_faults and last_aging are only used in grab_swap_token().  Move
them into grab_swap_token().

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

mm/thrash.c

index d416d40..42ffb01 100644 (file)
@@ -30,8 +30,6 @@
 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;
 
 #ifdef CONFIG_CGROUP_MEM_RES_CTLR
 static struct mem_cgroup *swap_token_memcg_from_mm(struct mm_struct *mm)
@@ -55,6 +53,8 @@ void grab_swap_token(struct mm_struct *mm)
 {
        int current_interval;
        unsigned int old_prio = mm->token_priority;
+       static unsigned int global_faults;
+       static unsigned int last_aging;
 
        global_faults++;