From: Li Zefan <lizf@cn.fujitsu.com>
Date: Fri, 25 Jul 2008 08:46:54 +0000 (-0700)
Subject: cgroup: use read lock to guard find_existing_css_set()
X-Git-Tag: v2.6.27-rc1~394
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7e9abd89cbdf9b73d327d8173343abce9022609b;p=pandora-kernel.git

cgroup: use read lock to guard find_existing_css_set()

The function does not modify anything (except the temporary css template), so
it's sufficient to hold read lock.

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

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