From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from csamuel.org ([74.50.50.137]:36313 "EHLO csamuel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1761443Ab2FEDmy (ORCPT ); Mon, 4 Jun 2012 23:42:54 -0400 Message-ID: <4FCD803A.2070906@csamuel.org> Date: Tue, 05 Jun 2012 13:42:50 +1000 From: Chris Samuel MIME-Version: 1.0 To: Marc MERLIN CC: linux-btrfs@vger.kernel.org Subject: Re: Recovering a file from a snapshot without duplicating its blocks (--reflink across devs?) References: <20120605030100.GA7572@merlins.org> In-Reply-To: <20120605030100.GA7572@merlins.org> Content-Type: text/plain; charset=ISO-8859-1 Sender: linux-btrfs-owner@vger.kernel.org List-ID: On 05/06/12 13:01, Marc MERLIN wrote: > First I though, I sure would be nice if I could take btrfs to reference > the same blocks from the snapshot to my current image. > But, --reflink failed across devices nodes, so I was forced to > copy/duplicate the blocks (36GB). Patches for this were posted over a year ago, but it was NAK'd by Christoph Hellwig. I don't know if it's got any further since then. :-( Patch description: http://www.spinics.net/lists/linux-btrfs/msg09226.html NAK: http://www.spinics.net/lists/linux-btrfs/msg09229.html -- Chris Samuel : http://www.csamuel.org/ : Melbourne, VIC