From mboxrd@z Thu Jan 1 00:00:00 1970 From: jianhai luan Subject: Re: [Xen-devel] [PATCH net] xen-netback: add the scenario which now beyond the range time_after_eq(). Date: Thu, 24 Oct 2013 19:34:42 +0800 Message-ID: <526905D2.4000003@oracle.com> References: <1381944167-24918-1-git-send-email-jianhai.luan@oracle.com> <525FBB4F02000078000FBB30@nat28.tlf.novell.com> <525FA79F.8060601@oracle.com> <525FC98002000078000FBBB5@nat28.tlf.novell.com> <52601274.5010008@oracle.com> <526102DE02000078000FBFBB@nat28.tlf.novell.com> <5260EDD8.4020608@oracle.com> <52610CD202000078000FC00B@nat28.tlf.novell.com> <20131018112417.GA20185@zion.uk.xensource.com> <52678286.6000802@oracle.com> <5268025002000078000A56B5@nat28.tlf.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: david.vrabel@citrix.com, ian.campbell@citrix.com, xen-devel@lists.xenproject.org, annie.li@oracle.com, netdev@vger.kernel.org To: Jan Beulich , David.Laight@ACULAB.COM, wei.liu2@citrix.com Return-path: Received: from aserp1040.oracle.com ([141.146.126.69]:30732 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753844Ab3JXLfC (ORCPT ); Thu, 24 Oct 2013 07:35:02 -0400 In-Reply-To: <5268025002000078000A56B5@nat28.tlf.novell.com> Sender: netdev-owner@vger.kernel.org List-ID: >>> As I understand it, this is the idea of this patch -- to narrow down the >>> timing window. >> Jan, do you agree the idea or have better suggestion to me. > As said before - I disagree (reducing a timing window is never a solution, > only eliminating it is), and I pointed at the alternative (using 64-bit > calculations) before. Your mean is that add u64 member into struct xenvif or add static variable to keep expire? Jason > > Jan >