Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753664Ab1DUIGn (ORCPT ); Thu, 21 Apr 2011 04:06:43 -0400 Received: from bombadil.infradead.org ([18.85.46.34]:37029 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751922Ab1DUIGk (ORCPT ); Thu, 21 Apr 2011 04:06:40 -0400 Date: Thu, 21 Apr 2011 04:06:38 -0400 From: Christoph Hellwig To: Ian Campbell Cc: Christoph Hellwig , "xen-devel@lists.xensource.com" , Stefano Stabellini , "jaxboe@fusionio.com" , Konrad Rzeszutek Wilk , "linux-kernel@vger.kernel.org" , "konrad@kernel.org" Subject: Re: [Xen-devel] Re: [PATCH v3] xen block backend. Message-ID: <20110421080638.GA10630@infradead.org> References: <1303333543-5915-1-git-send-email-konrad.wilk@oracle.com> <20110421033735.GA11501@infradead.org> <1303370925.5997.322.camel@zakaz.uk.xensource.com> <1303373003.5997.337.camel@zakaz.uk.xensource.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1303373003.5997.337.camel@zakaz.uk.xensource.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 939 Lines: 18 On Thu, Apr 21, 2011 at 09:03:23AM +0100, Ian Campbell wrote: > BTW about the only nice property blktap has as it currently stands over > this plan is that it exports an actual block device from vhd, qcow etc > files (in some sense blktap is a loopback driver for complex disk image > file formats). It turns out to occasionally be quite useful to be able > to mount such files, even on non-virtualisation systems (in its current > incarnation blktap has no dependency on Xen). You can already do that using qemu-nbd today. In most cases the image format support in qemu is much better than in the various Xen trees anyway, with vhd beeing the only one that looks potentially better in Xen. -- 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/