From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Rafael J. Wysocki" Subject: Re: [PATCH] Hibernation: Fix lockdep report (v2) Date: Wed, 14 Nov 2007 14:11:29 +0100 Message-ID: <200711141411.30879.rjw@sisk.pl> References: <200711041459.23082.rjw@sisk.pl> <1194979533.4299.5.camel@johannes.berg> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1194979533.4299.5.camel@johannes.berg> Content-Disposition: inline List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-pm-bounces@lists.linux-foundation.org Errors-To: linux-pm-bounces@lists.linux-foundation.org To: Johannes Berg Cc: pm list , Peter Zijlstra List-Id: linux-pm@vger.kernel.org On Tuesday, 13 of November 2007, Johannes Berg wrote: > > On Sun, 2007-11-04 at 14:59 +0100, Rafael J. Wysocki wrote: > > [Len, please add this patch to the suspend branch, thanks.] > > --- > > From: Johannes Berg > > > > Lockdep reports a circular locking dependency in the hibernate code > > because > > - during system boot hibernate code (from an initcall) locks pm_mutex > > and then a sysfs buffer mutex via name_to_dev_t > > - during regular operation hibernate code locks pm_mutex under a > > sysfs buffer mutex because it's called from sysfs methods. > > Ping? Do I need to follow this or will somebody take care to merge it > before .24 closes? I wanted it to go via Len's tree, but unfortunately Len has not been responsive recently. I'll push it to Andrew later today. Thanks, Rafael