From: Tejun Heo <tj@kernel.org>
Date: Tue, 18 Nov 2014 07:49:51 +0000 (-0500)
Subject: cgroup: add cgroup_subsys->css_e_css_changed()
X-Git-Tag: omap-for-v3.19/fixes-rc1~117^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=56c807ba4e91f0980567b6a69de239677879b17f;p=pandora-kernel.git

cgroup: add cgroup_subsys->css_e_css_changed()

Add a new cgroup_subsys operatoin ->css_e_css_changed().  This is
invoked if any of the effective csses seen from the css's cgroup may
have changed.  This will be used to implement cgroup writeback
support.

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