Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932710Ab0LTQZX (ORCPT ); Mon, 20 Dec 2010 11:25:23 -0500 Received: from canuck.infradead.org ([134.117.69.58]:47342 "EHLO canuck.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752775Ab0LTQZW convert rfc822-to-8bit (ORCPT ); Mon, 20 Dec 2010 11:25:22 -0500 Subject: Re: [RFC PATCH 03/15] nohz_task: Make tick stop and restart callable outside idle From: Peter Zijlstra To: Steven Rostedt Cc: Frederic Weisbecker , LKML , Thomas Gleixner , "Paul E. McKenney" , Ingo Molnar , Lai Jiangshan , Andrew Morton , Anton Blanchard , Tim Pepper In-Reply-To: <1292861950.22905.26.camel@gandalf.stny.rr.com> References: <1292858662-5650-1-git-send-email-fweisbec@gmail.com> <1292858662-5650-4-git-send-email-fweisbec@gmail.com> <1292860133.5021.7.camel@laptop> <1292861950.22905.26.camel@gandalf.stny.rr.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8BIT Date: Mon, 20 Dec 2010 17:25:11 +0100 Message-ID: <1292862311.5021.34.camel@laptop> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 631 Lines: 20 On Mon, 2010-12-20 at 11:19 -0500, Steven Rostedt wrote: > On Mon, 2010-12-20 at 16:48 +0100, Peter Zijlstra wrote: > > On Mon, 2010-12-20 at 16:24 +0100, Frederic Weisbecker wrote: > > > + if (!current->pid) > > > > I'm not exactly sure that's the sanest way to test if you're the idle > > thread... > > Would > > if (idle_cpu(cpu)) > > be better? Lots ;-) -- 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/