Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1762243AbZJOAYi (ORCPT ); Wed, 14 Oct 2009 20:24:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1756809AbZJOAYh (ORCPT ); Wed, 14 Oct 2009 20:24:37 -0400 Received: from mx1.redhat.com ([209.132.183.28]:7621 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755182AbZJOAYg (ORCPT ); Wed, 14 Oct 2009 20:24:36 -0400 Date: Thu, 15 Oct 2009 01:23:50 +0100 From: Alasdair G Kergon To: Jens Axboe Cc: Mark McLoughlin , Rusty Russell , device-mapper development , linux-kernel , virtualization , Christoph Hellwig , Mikulas Patocka Subject: Re: [dm-devel] [PATCH resend] block: silently error unsupported empty barriers too Message-ID: <20091015002350.GV16950@agk-dp.fab.redhat.com> Mail-Followup-To: Jens Axboe , Mark McLoughlin , Rusty Russell , device-mapper development , linux-kernel , virtualization , Christoph Hellwig , Mikulas Patocka References: <1251992870.3084.125.camel@blaa> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1251992870.3084.125.camel@blaa> Organization: Red Hat UK Ltd. Registered in England and Wales, number 03798903. Registered Office: Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE. User-Agent: Mutt/1.5.18 (2008-05-17) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 465 Lines: 11 On Thu, Sep 03, 2009 at 04:47:50PM +0100, Mark McLoughlin wrote: > We should error all barriers, even empty barriers, on devices like > virtio_blk which don't support them. Acked-by: Alasdair G Kergon -- 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/