From: Tejun Heo <tj@kernel.org>
Date: Sun, 1 Apr 2012 19:09:55 +0000 (-0700)
Subject: memcg: always create memsw files if CONFIG_CGROUP_MEM_RES_CTLR_SWAP
X-Git-Tag: v3.5-rc1~142^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=af36f906c0f4c2ffa0482ecdf856a33dc88ae8c5;p=pandora-kernel.git

memcg: always create memsw files if CONFIG_CGROUP_MEM_RES_CTLR_SWAP

Instead of conditioning creation of memsw files on do_swap_account,
always create the files if compiled-in and fail read/write attempts
with -EOPNOTSUPP if !do_swap_account.

This is suggested by KAMEZAWA to simplify memcg file creation so that
it can use cgroup->subsys_cftypes.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Li Zefan <lizf@cn.fujitsu.com>
---

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