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memcg: add mem_cgroup_disabled()

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We check mem_cgroup is disabled or not by checking
mem_cgroup_subsys.disabled.  I think it has more references than expected,
now.

replacing
   if (mem_cgroup_subsys.disabled)
with
   if (mem_cgroup_disabled())

give us good look, I think.

[kamezawa.hiroyu@jp.fujitsu.com: fix typo]
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Cc: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Hirokazu Takahashi
2009-01-07 18:08:02 -08:00
committed by Linus Torvalds
parent 08e552c69c
commit f8d6654226
3 changed files with 30 additions and 17 deletions
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4
mm/page_cgroup.c
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@@ -74,7 +74,7 @@ void __init page_cgroup_init(void)
int nid, fail;
if (mem_cgroup_subsys.disabled)
if (mem_cgroup_disabled())
return;
for_each_online_node(nid) {
@@ -247,7 +247,7 @@ void __init page_cgroup_init(void)
unsigned long pfn;
int fail = 0;
if (mem_cgroup_subsys.disabled)
if (mem_cgroup_disabled())
return;
for (pfn = 0; !fail && pfn < max_pfn; pfn += PAGES_PER_SECTION) {