From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030640AbaGROXa (ORCPT ); Fri, 18 Jul 2014 10:23:30 -0400 Received: from qmta05.emeryville.ca.mail.comcast.net ([76.96.30.48]:37309 "EHLO qmta05.emeryville.ca.mail.comcast.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1030558AbaGROX0 (ORCPT ); Fri, 18 Jul 2014 10:23:26 -0400 Date: Fri, 18 Jul 2014 09:23:24 -0500 (CDT) From: Christoph Lameter To: Pranith Kumar cc: rdunlap@infradead.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 1/1] doc: Add remote CPU access details and others to this_cpu_ops.txt In-Reply-To: <53C85FE9.6010304@gmail.com> Message-ID: References: <1405552141-8506-1-git-send-email-bobby.prani@gmail.com> <53C7D93B.4090006@gmail.com> <53C7E234.3020503@gmail.com> <53C85FE9.6010304@gmail.com> Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 17 Jul 2014, Pranith Kumar wrote: > > then we have on x86 a increment operation with locked semantics racing > > with an unlocked one on the same cacheline. > OK, I will add this as a warning in the documentation. Thanks! Note that I have not been able to get beyond a bad feeling. Looked up various sources of information about how the lock prefix works. Still I am not sure if this works or not.