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=-4.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS 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 B1CF8C43441 for ; Fri, 9 Nov 2018 23:17:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 7823A20827 for ; Fri, 9 Nov 2018 23:17:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 7823A20827 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=davemloft.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 S1728674AbeKJI7z (ORCPT ); Sat, 10 Nov 2018 03:59:55 -0500 Received: from shards.monkeyblade.net ([23.128.96.9]:60952 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728310AbeKJI7z (ORCPT ); Sat, 10 Nov 2018 03:59:55 -0500 Received: from localhost (unknown [IPv6:2601:601:9f80:35cd::cf9]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id 44C5B14BF6737; Fri, 9 Nov 2018 15:17:10 -0800 (PST) Date: Fri, 09 Nov 2018 15:17:09 -0800 (PST) Message-Id: <20181109.151709.1128248834308208677.davem@davemloft.net> To: jian.w.wen@oracle.com Cc: netdev@vger.kernel.org, jgross@suse.com, xen-devel@lists.xenproject.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] xen/netfront: remove unnecessary wmb From: David Miller In-Reply-To: <20181109065359.14900-1-jian.w.wen@oracle.com> References: <20181109065359.14900-1-jian.w.wen@oracle.com> X-Mailer: Mew version 6.8 on Emacs 26.1 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Fri, 09 Nov 2018 15:17:10 -0800 (PST) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jacob Wen Date: Fri, 9 Nov 2018 14:53:59 +0800 > RING_PUSH_REQUESTS_AND_CHECK_NOTIFY is already able to make sure backend sees > requests before req_prod is updated. > > Signed-off-by: Jacob Wen Applied to net-next.