From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail137.messagelabs.com (mail137.messagelabs.com [216.82.249.19]) by kanga.kvack.org (Postfix) with ESMTP id 456308D0039 for ; Sat, 19 Feb 2011 20:51:43 -0500 (EST) Received: from wpaz9.hot.corp.google.com (wpaz9.hot.corp.google.com [172.24.198.73]) by smtp-out.google.com with ESMTP id p1K1pdaA006062 for ; Sat, 19 Feb 2011 17:51:40 -0800 Received: from pvg2 (pvg2.prod.google.com [10.241.210.130]) by wpaz9.hot.corp.google.com with ESMTP id p1K1ou8L020739 (version=TLSv1/SSLv3 cipher=RC4-SHA bits=128 verify=NOT) for ; Sat, 19 Feb 2011 17:51:38 -0800 Received: by pvg2 with SMTP id 2so173742pvg.39 for ; Sat, 19 Feb 2011 17:51:38 -0800 (PST) Date: Sat, 19 Feb 2011 17:51:35 -0800 (PST) From: David Rientjes Subject: Re: [PATCH 4/4] cpuset: Hold callback_mutex in cpuset_clone() In-Reply-To: <4D5C7F00.2050802@cn.fujitsu.com> Message-ID: References: <4D5C7EA7.1030409@cn.fujitsu.com> <4D5C7F00.2050802@cn.fujitsu.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org List-ID: To: Li Zefan Cc: Andrew Morton , LKML , Paul Menage , miaox@cn.fujitsu.com, linux-mm@kvack.org On Thu, 17 Feb 2011, Li Zefan wrote: > Chaning cpuset->mems/cpuset->cpus should be protected under > callback_mutex. > > cpuset_clone() doesn't follow this rule. It's ok because it's > called when creating and initializing a cgroup, but we'd better > hold the lock to avoid subtil break in the future. > > Signed-off-by: Li Zefan Acked-by: David Rientjes -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: email@kvack.org