From: Tejun Heo <tj@kernel.org>
Date: Tue, 11 Feb 2014 16:52:48 +0000 (-0500)
Subject: cgroup: update cgroup name handling
X-Git-Tag: v3.15-rc1~109^2~63
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8d7e6fb0a1db970ac3589f87af0f2a20ef46654b;p=pandora-kernel.git

cgroup: update cgroup name handling

Straightforward updates to cgroup name handling in preparation of
kernfs conversion.

* cgroup_alloc_name() is updated to take const char * isntead of
  dentry * for name source.

* cgroup name formatting is separated out into cgroup_file_name().
  While at it, buffer length protection is added.

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