From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932478Ab1JRO7c (ORCPT ); Tue, 18 Oct 2011 10:59:32 -0400 Received: from mail-wy0-f174.google.com ([74.125.82.174]:58123 "EHLO mail-wy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932197Ab1JRO7b (ORCPT ); Tue, 18 Oct 2011 10:59:31 -0400 MIME-Version: 1.0 In-Reply-To: <1318928713.21167.4.camel@twins> References: <20111007070842.GA27555@hostway.ca> <20111007174848.GA11011@hostway.ca> <1318010515.398.8.camel@twins> <20111008005035.GC22843@hostway.ca> <1318060551.8395.0.camel@twins> <20111012213555.GC24461@hostway.ca> <20111013232521.GA5654@hostway.ca> <1318847658.6594.40.camel@twins> <1318874090.4172.84.camel@twins> <1318879396.4172.92.camel@twins> <1318928713.21167.4.camel@twins> From: Linus Torvalds Date: Tue, 18 Oct 2011 07:59:10 -0700 X-Google-Sender-Auth: fyB0Q45H0TRMnTbXVDGO_pMLuyw Message-ID: Subject: Re: Linux 3.1-rc9 To: Peter Zijlstra Cc: Thomas Gleixner , Simon Kirby , Linux Kernel Mailing List , Dave Jones , Martin Schwidefsky , Ingo Molnar Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Oct 18, 2011 at 2:05 AM, Peter Zijlstra wrote: > > Subject: cputimer: Cure lock inversion > From: Peter Zijlstra > Date: Mon Oct 17 11:50:30 CEST 2011 > > There's a lock inversion between the cputimer->lock and rq->lock; notably > the two callchains involved are: Thanks, looks nice and small. Simon - can you check that this works for you? Thomas/Ingo - once confirmed by Simon, should I take it directly or will this come through your trees? Linus