From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757748Ab2INRBy (ORCPT ); Fri, 14 Sep 2012 13:01:54 -0400 Received: from mail-pb0-f46.google.com ([209.85.160.46]:48182 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757679Ab2INRBw (ORCPT ); Fri, 14 Sep 2012 13:01:52 -0400 Date: Fri, 14 Sep 2012 10:01:47 -0700 From: Tejun Heo To: Aristeu Rozanski Cc: Jiri Slaby , akpm@linux-foundation.org, jirislaby@gmail.com, linux-kernel@vger.kernel.org, lizefan@huawei.com Subject: Re: [PATCH] cgroup: fix invalid rcu dereference Message-ID: <20120914170147.GB17747@google.com> References: <5052F78A.7010007@suse.cz> <1347615612-11450-1-git-send-email-jslaby@suse.cz> <20120914132738.GN19694@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20120914132738.GN19694@redhat.com> User-Agent: Mutt/1.5.20 (2009-06-14) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Sep 14, 2012 at 09:27:38AM -0400, Aristeu Rozanski wrote: > On Fri, Sep 14, 2012 at 11:40:12AM +0200, Jiri Slaby wrote: > > Commit "device_cgroup: convert device_cgroup internally to policy + > > exceptions" removed rcu locks which are needed in task_devcgroup > > called in this chain: devcgroup_inode_mknod OR > > __devcgroup_inode_permission -> __devcgroup_inode_permission -> > > task_devcgroup -> task_subsys_state -> task_subsys_state_check. > > ugh, missed that > ... > thanks Jiri > Acked-by: Aristeu Rozanski How should this be routed? Thanks. -- tejun