Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1422647Ab2KIBkG (ORCPT ); Thu, 8 Nov 2012 20:40:06 -0500 Received: from mail-pb0-f46.google.com ([209.85.160.46]:45086 "EHLO mail-pb0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753898Ab2KIBkE (ORCPT ); Thu, 8 Nov 2012 20:40:04 -0500 Message-ID: <509C5EEE.4050205@gmail.com> Date: Fri, 09 Nov 2012 09:39:58 +0800 From: Shan Wei User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:16.0) Gecko/20121026 Thunderbird/16.0.2 MIME-Version: 1.0 To: Christoph Lameter CC: jesse@nicira.com, dev@openvswitch.org, NetDev , Kernel-Maillist , David Miller Subject: Re: [PATCH 4/9] net: openvswitch: use this_cpu_ptr per-cpu helper References: <5093EE59.8010609@gmail.com> <0000013ac23ac528-19a0dd1b-3144-45df-9d6e-471999d6ae31-000000@email.amazonses.com> <509BC026.4040209@gmail.com> <0000013ae10817d9-c5215352-348f-4898-b618-bb89e8725ab1-000000@email.amazonses.com> In-Reply-To: <0000013ae10817d9-c5215352-348f-4898-b618-bb89e8725ab1-000000@email.amazonses.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 830 Lines: 28 Christoph Lameter said, at 2012/11/9 1:18: > On Thu, 8 Nov 2012, Shan Wei wrote: > >> Christoph Lameter said, at 2012/11/3 1:46: >>>> u64_stats_update_begin(&stats->sync); >>>> stats->tx_packets++; >>> >>> Use this_cpu_inc(vport->percpu_stats->packets) here? >> >> Lots of network drivers use u64_stats_sync infrastructure for statistics > > So they would all have an advantage from the patch. I will try to do the optimizing next time in another patchset which not included in this series patchset. I will submit v3 version of this series after testing today. Thanks -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/