Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp591216imu; Fri, 9 Nov 2018 02:53:35 -0800 (PST) X-Google-Smtp-Source: AJdET5dEJM9TqvVTkf3ELvKz520jnYpVy88+lKjA/1MLVLQeXbFfQtrVL03LWbKDPLOndYGdteyZ X-Received: by 2002:a62:32c4:: with SMTP id y187-v6mr8509593pfy.4.1541760815646; Fri, 09 Nov 2018 02:53:35 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1541760815; cv=none; d=google.com; s=arc-20160816; b=1JIAMhl2PeC3vSxiwU6trmcPJvUEiz98KiuTjMdClIITJfvj4hHW6StzbV8akQRd8z CAYz5QDgxdF7pMVlRcyUO5dikUhybwRE7oQjSEGDEpUguGbF+PBEU6tstiL/pFz78YaX RvpEaiIzTe7sgsvQ8caRZs8+9oA0WSn8F1bDM4TMbVf0mIZ9tR8/cQlc2vG8r5EIZjm3 kojeYPlHboDXIC6sOm3rEgycWUot3LI509hhdm9uWeOgBmM0B2xDMZEZbhx+Bc+tA4ut +iqXnrSCWJYKZ4sLiRgtDZc6jEfL6KqLbahvmaLdhZO59VuJ7kFfpZXgYWYEW5XVbVig fvGg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date; bh=njS8qC2j7uvpF17F5MEn8PZaJ1CCTtCBbrOzBBRx0tg=; b=fqPZlrl2Kq5Me4ByeoECu/OCP4PGd0MxVGqsRvuYrGx8qcgoskK6zXw1KolQjhWLDd KPTcJ9oI3b50Qu/6p3rqPZLqgut9T5ppQDnlI6suyDp4/rBJElIwLj8U5Uo+PYNFi9rJ iUywahypSIqWbikOuTXAvTskmnhPqqijvaygKXNJLAXw/VYPmiYc2fF/11hLi5D/7vex +mJfPW0pH8syKt0iCTcSskBDgPSdD9V9Mo+/a69OXoBIyZHV/hq+74zF+HJCWkjcd4F2 JjfWmCDpAxnDtkSvjXFdEgWAvccK8gg9n3me9nQbQ2NsngYGQbFpjaOKVG1fp8rcfaIu Ntgg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id u64si6784464pgu.534.2018.11.09.02.53.19; Fri, 09 Nov 2018 02:53:35 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728140AbeKIUdA (ORCPT + 99 others); Fri, 9 Nov 2018 15:33:00 -0500 Received: from smtp03.citrix.com ([162.221.156.55]:48721 "EHLO SMTP03.CITRIX.COM" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727596AbeKIUdA (ORCPT ); Fri, 9 Nov 2018 15:33:00 -0500 X-IronPort-AV: E=Sophos;i="5.54,483,1534809600"; d="scan'208";a="70119411" Date: Fri, 9 Nov 2018 10:52:54 +0000 From: Wei Liu To: Jacob Wen CC: , , , , Wei Liu Subject: Re: [Xen-devel] [PATCH] xen/netfront: remove unnecessary wmb Message-ID: <20181109105254.giy4ilemhw74zg3x@zion.uk.xensource.com> References: <20181109065359.14900-1-jian.w.wen@oracle.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20181109065359.14900-1-jian.w.wen@oracle.com> User-Agent: NeoMutt/20170113 (1.7.2) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Nov 09, 2018 at 02:53:59PM +0800, Jacob Wen wrote: > 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 Reviewed-by: Wei Liu