From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tejun Heo Subject: Re: [PATCH] cgroup: remove hierarchy_mutex Date: Thu, 7 Jun 2012 11:33:02 +0900 Message-ID: <20120607023302.GH21357@google.com> References: <4FCC5792.8010203@huawei.com> Mime-Version: 1.0 Return-path: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; bh=BKmX0nNeL8iSyjBIDSj41bUqJ1J6RW+qSoJz8KXhw+4=; b=R5yR4lvnK2G/hkDHV5gmEVOEIMlQ/dWHqfmKhToIsd+A7qyE77yvBgY0duoIza/LQX r42Un8GaX7UOCKpiDZpar+cxHpjRdnV+2wrQm13ZJCLGRcJM3/Oo6zspYlRSNxy3dAYv QaHvrHcw4m/WGTcsYtczefmdq8Ew2gNKUCHP0fThreUxsz73HTXBkVRlnP+rURsuq6eE 0cH3yXm9AS0mljKQislB+t1jWe0EQ38qNwH8Fu+7Xt6wCbGzDuo5EN0ho49NCHKpsNuc EVtqLTU9zmYgv8+2Vbe5yVwTLBmZ9Z7znF5akWHvXYoDgOmh+3DpsFGtTvN8c/SzV4hq KP5A== Content-Disposition: inline In-Reply-To: <4FCC5792.8010203-hv44wF8Li93QT0dZR+AlfA@public.gmane.org> Sender: cgroups-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-ID: Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Li Zefan Cc: LKML , Cgroups On Mon, Jun 04, 2012 at 02:37:06PM +0800, Li Zefan wrote: > It was introduced for memcg to iterate cgroup hierarchy without > holding cgroup_mutex, but soon after that it was replaced with > a lockless way in memcg. > > No one used hierarchy_mutex since that, so remove it. > > Signed-off-by: Li Zefan Applied to cgroup/for-3.6. Thanks. -- tejun From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759498Ab2FGCdM (ORCPT ); Wed, 6 Jun 2012 22:33:12 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:42610 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754294Ab2FGCdJ (ORCPT ); Wed, 6 Jun 2012 22:33:09 -0400 Date: Thu, 7 Jun 2012 11:33:02 +0900 From: Tejun Heo To: Li Zefan Cc: LKML , Cgroups Subject: Re: [PATCH] cgroup: remove hierarchy_mutex Message-ID: <20120607023302.GH21357@google.com> References: <4FCC5792.8010203@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4FCC5792.8010203@huawei.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Jun 04, 2012 at 02:37:06PM +0800, Li Zefan wrote: > It was introduced for memcg to iterate cgroup hierarchy without > holding cgroup_mutex, but soon after that it was replaced with > a lockless way in memcg. > > No one used hierarchy_mutex since that, so remove it. > > Signed-off-by: Li Zefan Applied to cgroup/for-3.6. Thanks. -- tejun