tree a87f9720beb40eac10d247feead74ae9a77c80e6
parent 8d76a9797882fc517d87e2b5db2a4f04edaeccec
author Li Zefan <lizefan@huawei.com> 1373324437 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1373391204 -0700

memcg: kill memcg refcnt

Now memcg has the same life cycle as its corresponding cgroup.  Kill the
useless refcnt.

Signed-off-by: Li Zefan <lizefan@huawei.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Glauber Costa <glommer@openvz.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>