From ff4c8d503e2583b485da46d0ec3dcc29639ab889 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Sun, 1 Apr 2012 12:09:54 -0700
Subject: [PATCH] cgroup: move cgroup_clear_directory() call out of
 cgroup_populate_dir()

cgroup_populate_dir() currently clears all files and then repopulate
the directory; however, the clearing part is only useful when it's
called from cgroup_remount().  Relocate the invocation to
cgroup_remount().

This is to prepare for further cgroup file handling updates.

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