From: Li Zefan <lizf@cn.fujitsu.com>
Date: Thu, 8 Jan 2009 02:07:41 +0000 (-0800)
Subject: cgroups: make root_list contains active hierarchies only
X-Git-Tag: v2.6.29-rc1~147
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e5f6a8609bab0c2d7543ab1505105e011832afd7;p=pandora-kernel.git

cgroups: make root_list contains active hierarchies only

Don't link rootnode to the root list, so root_list contains active
hierarchies only as the comment indicates.  And rename for_each_root() to
for_each_active_root().

Also remove redundant check in cgroup_kill_sb().

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Paul Menage <menage@google.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Balbir Singh <balbir@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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