From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757898AbcDAAAw (ORCPT ); Thu, 31 Mar 2016 20:00:52 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:39380 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753424AbcDAAAv (ORCPT ); Thu, 31 Mar 2016 20:00:51 -0400 Date: Thu, 31 Mar 2016 17:00:49 -0700 From: Greg KH To: "K. Y. Srinivasan" Cc: linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, olaf@aepfle.de, apw@canonical.com, vkuznets@redhat.com, jasowang@redhat.com Subject: Re: [PATCH 2/7] Drivers: hv: vmbus: Use READ_ONCE() to read variables that are volatile Message-ID: <20160401000049.GC10232@kroah.com> References: <1458780816-4328-1-git-send-email-kys@microsoft.com> <1458780837-4367-1-git-send-email-kys@microsoft.com> <1458780837-4367-2-git-send-email-kys@microsoft.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1458780837-4367-2-git-send-email-kys@microsoft.com> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Mar 23, 2016 at 05:53:52PM -0700, K. Y. Srinivasan wrote: > Use the READ_ONCE macro to access variabes that can change asynchronously. Why? What is this "fixing"? thanks, greg k-h