From: Tejun Heo <tj@kernel.org>
Date: Fri, 16 May 2014 17:22:48 +0000 (-0400)
Subject: device_cgroup: remove direct access to cgroup->children
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~81^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5877019d97ab827b808e8759c71ef8d31490907a;p=pandora-kernel.git

device_cgroup: remove direct access to cgroup->children

Currently, devcg::has_children() directly tests cgroup->children for
list emptiness.  The field is not a published field and scheduled to
go away.  In addition, the test isn't strictly correct as devcg should
only care about children which are visible to userland.

This patch converts has_children() to use css_next_child() instead.
The subtle incorrectness is noted and will be dealt with later.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Aristeu Rozanski <aris@redhat.com>
Acked-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Acked-by: Li Zefan <lizefan@huawei.com>
---

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