Subject: + memcg-remove-redundant-code-in-mem_cgroup_force_empty_write.patch added to -mm tree
To: lizefan@xxxxxxxxxx,hannes@xxxxxxxxxxx,kamezawa.hiroyu@xxxxxxxxxxxxxx,mhocko@xxxxxxx,tj@xxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Tue, 30 Jul 2013 13:34:55 -0700
The patch titled
Subject: memcg: remove redundant code in mem_cgroup_force_empty_write()
has been added to the -mm tree. Its filename is
memcg-remove-redundant-code-in-mem_cgroup_force_empty_write.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/memcg-remove-redundant-code-in-mem_cgroup_force_empty_write.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/memcg-remove-redundant-code-in-mem_cgroup_force_empty_write.patch
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------------------------------------------------------
From: Li Zefan <lizefan@xxxxxxxxxx>
Subject: memcg: remove redundant code in mem_cgroup_force_empty_write()
vfs guarantees the cgroup won't be destroyed, so it's redundant to get a
css reference.
Signed-off-by: Li Zefan <lizefan@xxxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxx>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Cc: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/memcontrol.c | 7 +------
1 file changed, 1 insertion(+), 6 deletions(-)
diff -puN mm/memcontrol.c~memcg-remove-redundant-code-in-mem_cgroup_force_empty_write mm/memcontrol.c
--- a/mm/memcontrol.c~memcg-remove-redundant-code-in-mem_cgroup_force_empty_write
+++ a/mm/memcontrol.c
@@ -5005,15 +5005,10 @@ static int mem_cgroup_force_empty(struct
static int mem_cgroup_force_empty_write(struct cgroup *cont, unsigned int event)
{
struct mem_cgroup *memcg = mem_cgroup_from_cont(cont);
- int ret;
if (mem_cgroup_is_root(memcg))
return -EINVAL;
- css_get(&memcg->css);
- ret = mem_cgroup_force_empty(memcg);
- css_put(&memcg->css);
-
- return ret;
+ return mem_cgroup_force_empty(memcg);
}
_
Patches currently in -mm which might be from lizefan@xxxxxxxxxx are
vmpressure-change-vmpressure-sr_lock-to-spinlock.patch
vmpressure-do-not-check-for-pending-work-to-prevent-from-new-work.patch
vmpressure-make-sure-there-are-no-events-queued-after-memcg-is-offlined.patch
memcg-remove-redundant-code-in-mem_cgroup_force_empty_write.patch
linux-next.patch
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