From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754216Ab3LRQnh (ORCPT ); Wed, 18 Dec 2013 11:43:37 -0500 Received: from mail-we0-f170.google.com ([74.125.82.170]:49883 "EHLO mail-we0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750987Ab3LRQng (ORCPT ); Wed, 18 Dec 2013 11:43:36 -0500 Date: Wed, 18 Dec 2013 17:43:33 +0100 From: Frederic Weisbecker To: Peter Zijlstra Cc: LKML , Thomas Gleixner , Ingo Molnar , Steven Rostedt , "Paul E. McKenney" , John Stultz , Alex Shi , Kevin Hilman Subject: Re: [PATCH 10/13] nohz: Hand over timekeeping duty on cpu offlining Message-ID: <20131218164330.GA19339@localhost.localdomain> References: <1387320692-28460-1-git-send-email-fweisbec@gmail.com> <1387320692-28460-11-git-send-email-fweisbec@gmail.com> <20131218123001.GT13532@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20131218123001.GT13532@twins.programming.kicks-ass.net> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Dec 18, 2013 at 01:30:01PM +0100, Peter Zijlstra wrote: > On Tue, Dec 17, 2013 at 11:51:29PM +0100, Frederic Weisbecker wrote: > > The default timekeeper (aka CPU 0) is the perfect candidate for this > > task since it can't be offlined itself. > > Like said previously, yes it can! I'll rephrase that in the changelog to precise that it's the tick hotplug handler which prevent it to offline.