From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752086AbcBOVMZ (ORCPT ); Mon, 15 Feb 2016 16:12:25 -0500 Received: from mx1.redhat.com ([209.132.183.28]:42953 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751153AbcBOVMY (ORCPT ); Mon, 15 Feb 2016 16:12:24 -0500 Date: Mon, 15 Feb 2016 22:12:20 +0100 From: Radim Krcmar To: Vitaly Kuznetsov Cc: devel@linuxdriverproject.org, linux-kernel@vger.kernel.org, "K. Y. Srinivasan" , Haiyang Zhang , Cathy Avery Subject: Re: [PATCH 4/4] Drivers: hv: vmbus: avoid unneeded compiler optimizations in vmbus_wait_for_unload() Message-ID: <20160215211219.GF10555@potion.brq.redhat.com> References: <1455291770-15672-1-git-send-email-vkuznets@redhat.com> <1455291770-15672-5-git-send-email-vkuznets@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1455291770-15672-5-git-send-email-vkuznets@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 2016-02-12 16:42+0100, Vitaly Kuznetsov: > Message header is modified by the hypervisor and we read it in a loop, > we need to prevent compilers from optimizing accesses. There are no such > optimizations at this moment, this is just a future proof. > > Suggested-by: Radim Krcmar Reviewed-by: Radim Krčmář > Signed-off-by: Vitaly Kuznetsov