From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757693AbaEKFfD (ORCPT ); Sun, 11 May 2014 01:35:03 -0400 Received: from mail-ee0-f51.google.com ([74.125.83.51]:48828 "EHLO mail-ee0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751332AbaEKFe7 (ORCPT ); Sun, 11 May 2014 01:34:59 -0400 Date: Sun, 11 May 2014 07:34:54 +0200 From: Ingo Molnar To: Frederic Weisbecker Cc: Peter Zijlstra , linux-kernel@vger.kernel.org, hpa@zytor.com, paulmck@linux.vnet.ibm.com, akpm@linux-foundation.org, khilman@linaro.org, tglx@linutronix.de, axboe@fb.com, linux-tip-commits@vger.kernel.org Subject: Re: [tip:timers/nohz] nohz: Move full nohz kick to its own IPI Message-ID: <20140511053454.GA31143@gmail.com> References: <20140505150356.GB2099@localhost.localdomain> <20140505151228.GR26782@laptop.programming.kicks-ass.net> <20140505153405.GD2099@localhost.localdomain> <20140507151735.GQ30445@twins.programming.kicks-ass.net> <20140507152922.GB16694@localhost.localdomain> <20140507153736.GS30445@twins.programming.kicks-ass.net> <20140507160504.GC16694@localhost.localdomain> <20140507161350.GT30445@twins.programming.kicks-ass.net> <20140507190714.GA22890@gmail.com> <20140509151019.GB30010@localhost.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140509151019.GB30010@localhost.localdomain> 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 * Frederic Weisbecker wrote: > On Wed, May 07, 2014 at 09:07:14PM +0200, Ingo Molnar wrote: > > > > * Peter Zijlstra wrote: > > > > > On Wed, May 07, 2014 at 06:05:08PM +0200, Frederic Weisbecker wrote: > > > > So we can as well zap these commits and replace them with the irq_work_on() > > > > conversion (still preparing that). > > > > > > I hear you, but I think Ingo doesn't want to rebase the tree because its > > > public, but maybe he can make an exception.. > > > > Since tip:timers/nohz only contains these commits: > > > > fc1781cc66b1 Merge branch 'timers/nohz-ipi-for-tip-v3' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks into timers/nohz > > 72aacf0259bb nohz: Move full nohz kick to its own IPI > > 55d77c215c74 smp: Non busy-waiting IPI queue > > > > we can zap them all, or even keep 55d77c215c74. > > > > Frederic, which one would you prefer? > > I think we can zap them all. But since I'm not yet sure how the new > solution, based on irq work, is going to be received, do you mind if > we just wait for the new solution to be acked by Peterz? > > If that's ok for you, I'll then do a pull request that includes the > solution and zaps the old two commits. It's all isolated to timers/nohz, not mixed up with anything else, so zapping it is easy (I already zapped the second commit) and you can simply use latest -Linus to base your new solution on. Thanks, Ingo