From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030305AbbKDNzp (ORCPT ); Wed, 4 Nov 2015 08:55:45 -0500 Received: from e36.co.us.ibm.com ([32.97.110.154]:57278 "EHLO e36.co.us.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030246AbbKDNzl (ORCPT ); Wed, 4 Nov 2015 08:55:41 -0500 X-IBM-Helo: d03dlp03.boulder.ibm.com X-IBM-MailFrom: paulmck@linux.vnet.ibm.com X-IBM-RcptTo: linux-kernel@vger.kernel.org Date: Wed, 4 Nov 2015 05:55:31 -0800 From: "Paul E. McKenney" To: Peter Zijlstra Cc: Linus Torvalds , Ingo Molnar , Dmitry Vyukov , Linux Kernel Mailing List , Thomas Gleixner , Andrew Morton Subject: Re: [GIT PULL] locking changes for v4.4 Message-ID: <20151104135531.GT29027@linux.vnet.ibm.com> Reply-To: paulmck@linux.vnet.ibm.com References: <20151103091636.GA23350@gmail.com> <20151104113701.GH17308@twins.programming.kicks-ass.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20151104113701.GH17308@twins.programming.kicks-ass.net> User-Agent: Mutt/1.5.21 (2010-09-15) X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 15110413-0021-0000-0000-00001438E675 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Nov 04, 2015 at 12:37:01PM +0100, Peter Zijlstra wrote: > On Tue, Nov 03, 2015 at 05:30:29PM -0800, Linus Torvalds wrote: > > From 105ff3cbf225036b75a6a46c96d1ddce8e7bdc66 Mon Sep 17 00:00:00 2001 > > From: Linus Torvalds > > Date: Tue, 3 Nov 2015 17:22:17 -0800 > > Subject: [PATCH] atomic: remove all traces of READ_ONCE_CTRL() and atomic*_read_ctrl() > > > So I do not see how these "x_ctrl()" functions can currently be necessary. > > > Cc: Peter Zijlstra > > Cc: Paul E McKenney > > Cc: Dmitry Vyukov > > Cc: Will Deacon > > Cc: Ingo Molnar > > Signed-off-by: Linus Torvalds > > Hooray! > > Now if only we could convince the C/C++ people that write speculation is > a bad idea :-) Sigh... Working on it... Thanx, Paul > Acked-by: Peter Zijlstra (Intel) >