From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751885AbaIUEhd (ORCPT ); Sun, 21 Sep 2014 00:37:33 -0400 Received: from mail-lb0-f172.google.com ([209.85.217.172]:34334 "EHLO mail-lb0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751021AbaIUEhc (ORCPT ); Sun, 21 Sep 2014 00:37:32 -0400 Message-ID: <1411274247.4081.4.camel@marge.simpson.net> Subject: Re: [PATCH 6/7] sched: Delete rq::skip_clock_update == -1 From: Mike Galbraith To: Peter Zijlstra Cc: Kirill Tkhai , linux-kernel@vger.kernel.org, Ingo Molnar , Kirill Tkhai Date: Sun, 21 Sep 2014 06:37:27 +0200 In-Reply-To: <20140920190139.GW2832@worktop.localdomain> References: <20140920165116.16299.1381.stgit@localhost> <20140920165146.16299.20907.stgit@localhost> <20140920190139.GW2832@worktop.localdomain> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 2014-09-20 at 21:01 +0200, Peter Zijlstra wrote: > On Sat, Sep 20, 2014 at 08:51:46PM +0400, Kirill Tkhai wrote: > > From: Kirill Tkhai > > > > Idle class task is always queued, so we can safely remove "-1" case here. > > Tag you're it :-) > > https://lkml.org/lkml/2014/4/8/295 Maybe it should be given the too annoying to live treatment. Saving fastpath cycles is great, corner cases less so. -Mike