memcg: clarify use_hierarchy documentation
authorGreg Thelen <gthelen@google.com>
Thu, 17 Feb 2011 01:51:23 +0000 (17:51 -0800)
committerJiri Kosina <jkosina@suse.cz>
Thu, 17 Feb 2011 08:17:21 +0000 (09:17 +0100)
The memcg code does not allow changing memory.use_hierarchy if the
parent cgroup has enabled use_hierarchy.  Update documentation to match
the code.

Signed-off-by: Greg Thelen <gthelen@google.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>

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