From: Tejun Heo <tj@kernel.org>
Date: Fri, 16 May 2014 17:22:48 +0000 (-0400)
Subject: cgroup: remove cgroup->parent
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~81^2~13
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d51f39b05ce0008118c45945e681b20484990571;p=pandora-kernel.git

cgroup: remove cgroup->parent

cgroup->parent is redundant as cgroup->self.parent can also be used to
determine the parent cgroup and we're moving towards using
cgroup_subsys_states as the fundamental structural blocks.  This patch
introduces cgroup_parent() which follows cgroup->self.parent and
removes cgroup->parent.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
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