Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755578Ab2BOUnr (ORCPT ); Wed, 15 Feb 2012 15:43:47 -0500 Received: from cavan.codon.org.uk ([93.93.128.6]:34179 "EHLO cavan.codon.org.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755459Ab2BOUnp (ORCPT ); Wed, 15 Feb 2012 15:43:45 -0500 Date: Wed, 15 Feb 2012 20:43:38 +0000 From: Matthew Garrett To: Peter Zijlstra Cc: Thomas Gleixner , LKML , Arjan van de Ven Subject: Re: [PATCH] hrtimers: Special-case zero length sleeps Message-ID: <20120215204338.GA30191@srcf.ucam.org> References: <1317308372-6810-1-git-send-email-mjg@redhat.com> <20120215145225.GA21448@srcf.ucam.org> <20120215202221.GA29552@srcf.ucam.org> <20120215203814.GA29795@srcf.ucam.org> <1329338428.2293.176.camel@twins> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1329338428.2293.176.camel@twins> User-Agent: Mutt/1.5.20 (2009-06-14) X-SA-Exim-Connect-IP: X-SA-Exim-Mail-From: mjg59@cavan.codon.org.uk X-SA-Exim-Scanned: No (on cavan.codon.org.uk); SAEximRunCond expanded to false Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 753 Lines: 17 On Wed, Feb 15, 2012 at 09:40:28PM +0100, Peter Zijlstra wrote: > On Wed, 2012-02-15 at 20:38 +0000, Matthew Garrett wrote: > > Application authors do seem to have ended up under the belief > > that sleep(0) is a meaningful thing to do, and the internet seems to be > > full of suggestions to use it rather than sched_yield(). > > http://xkcd.com/386/ I'm not even going to pretend to disagree. The question is whether we want to support their breakage anyway. -- Matthew Garrett | mjg59@srcf.ucam.org -- 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/