Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757905AbZAGR73 (ORCPT ); Wed, 7 Jan 2009 12:59:29 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753193AbZAGR7U (ORCPT ); Wed, 7 Jan 2009 12:59:20 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:54814 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753030AbZAGR7T (ORCPT ); Wed, 7 Jan 2009 12:59:19 -0500 Date: Wed, 7 Jan 2009 18:59:03 +0100 From: Ingo Molnar To: Peter Zijlstra Cc: Hidetoshi Seto , linux-kernel@vger.kernel.org, Thomas Gleixner Subject: Re: [PATCH] posix-cpu-timers: clock_gettime(CLOCK_*_CPUTIME_ID) goes backward Message-ID: <20090107175903.GF24982@elte.hu> References: <49547320.9010302@jp.fujitsu.com> <20081226084320.GC755@elte.hu> <1230282171.9487.278.camel@twins> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1230282171.9487.278.camel@twins> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 747 Lines: 20 * Peter Zijlstra wrote: > Which reminds me, why do we still have this crap in the kernel? I > thought we pretty much showed the per-cpu itimer thing was utter crap? > -- can we pretty please either revert that or apply > http://lkml.org/lkml/2008/11/24/183 ? > > Also, I really don't like the above, we now do the per-cpu loop with the > RQ lock held... ok, i've applied it to tip/timers/urgent. This should solve the original itimer testcase as well, correct? Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/