From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_NEOMUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5706BECDFB3 for ; Tue, 17 Jul 2018 05:28:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 14EA52086B for ; Tue, 17 Jul 2018 05:28:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 14EA52086B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=stgolabs.net Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728205AbeGQF7m (ORCPT ); Tue, 17 Jul 2018 01:59:42 -0400 Received: from mx2.suse.de ([195.135.220.15]:41316 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727350AbeGQF7m (ORCPT ); Tue, 17 Jul 2018 01:59:42 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay1.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 2AC37AD71; Tue, 17 Jul 2018 05:28:54 +0000 (UTC) Date: Mon, 16 Jul 2018 22:28:50 -0700 From: Davidlohr Bueso To: akpm@linux-foundation.org Cc: manfred@colorfullife.com, linux-kernel@vger.kernel.org, Davidlohr Bueso Subject: Re: [PATCH -next] ipc/sem: prevent queue.status tearing in semop Message-ID: <20180717052850.62vaf4pi5yibtu5j@linux-r8p5> References: <20180717052654.676-1-dave@stgolabs.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Disposition: inline In-Reply-To: <20180717052654.676-1-dave@stgolabs.net> User-Agent: NeoMutt/20170912 (1.9.0) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 16 Jul 2018, Bueso wrote: >In order for load/store tearing to work, _all_ accesses to ^ prevention