From patchwork Thu Oct 8 14:54:54 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mike Galbraith X-Patchwork-Id: 52521 Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id n98F0Eci009612 for ; Thu, 8 Oct 2009 15:00:15 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932486AbZJHOzo (ORCPT ); Thu, 8 Oct 2009 10:55:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S932478AbZJHOzo (ORCPT ); Thu, 8 Oct 2009 10:55:44 -0400 Received: from mail.gmx.net ([213.165.64.20]:52346 "HELO mail.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S932435AbZJHOzn (ORCPT ); Thu, 8 Oct 2009 10:55:43 -0400 Received: (qmail invoked by alias); 08 Oct 2009 14:54:55 -0000 Received: from p4FE19D89.dip0.t-ipconnect.de (EHLO [192.168.178.27]) [79.225.157.137] by mail.gmx.net (mp069) with SMTP; 08 Oct 2009 16:54:55 +0200 X-Authenticated: #14349625 X-Provags-ID: V01U2FsdGVkX19lOIIpanll+EsPHbjJ4YK7Gzx+TpPss6pvNt3rt7 z35qnC4ayW+1V1 Subject: Re: [.32-rc3] scheduler: iwlagn consistently high in "waiting for CPU" From: Mike Galbraith To: Arjan van de Ven Cc: Frans Pop , Linux Kernel Mailing List , Ingo Molnar , Peter Zijlstra , linux-wireless@vger.kernel.org In-Reply-To: <1255011186.7294.1.camel@marge.simson.net> References: <200910051500.55875.elendil@planet.nl> <200910061749.02805.elendil@planet.nl> <200910071910.53907.elendil@planet.nl> <200910072034.57511.elendil@planet.nl> <1254974743.7797.21.camel@marge.simson.net> <20091008064041.67219b13@infradead.org> <1255011186.7294.1.camel@marge.simson.net> Date: Thu, 08 Oct 2009 16:54:54 +0200 Message-Id: <1255013694.7309.7.camel@marge.simson.net> Mime-Version: 1.0 X-Mailer: Evolution 2.24.1.1 X-Y-GMX-Trusted: 0 X-FuHaFi: 0.55 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org Index: linux-2.6/kernel/sched_fair.c =================================================================== --- linux-2.6.orig/kernel/sched_fair.c +++ linux-2.6/kernel/sched_fair.c @@ -495,8 +495,10 @@ static void update_curr(struct cfs_rq *c u64 now = rq_of(cfs_rq)->clock; unsigned long delta_exec; - if (unlikely(!curr)) + if (unlikely(!curr)) { + update_rq_clock(rq_of(cfs_rq)); return; + } /* * Get the amount of time the current task was running