Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756367Ab1DMS67 (ORCPT ); Wed, 13 Apr 2011 14:58:59 -0400 Received: from mail-iw0-f174.google.com ([209.85.214.174]:58897 "EHLO mail-iw0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750862Ab1DMS65 convert rfc822-to-8bit (ORCPT ); Wed, 13 Apr 2011 14:58:57 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:from:date :x-google-sender-auth:message-id:subject:to:cc:content-type :content-transfer-encoding; b=QiC20pCTMEXtWiTLUhSQwvNNFFYqADFKZkCnJw8fQStp/3jHGnmX9ryOvAcY7Mk3qt wWjf4I3dayJf0exfVbYvX1szRZP2TnAXWYxWZa6WfGCHc7qNgzPY0qL5CwupAZDO5Itw 4RvAW3C7437jysApbREmyanjztax3nux3Dj/E= MIME-Version: 1.0 In-Reply-To: <4DA5DCB8.3040101@gmail.com> References: <4DA4B6A8.7030804@gmail.com> <4DA5DCB8.3040101@gmail.com> From: Michal Suchanek Date: Wed, 13 Apr 2011 20:58:36 +0200 X-Google-Sender-Auth: UNKFDGrufDViQY-OS_iHP1Bgj0k Message-ID: Subject: Re: Unionmount status? To: Ric Wheeler Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, David Howells , Ian Kent , Jeff Moyer , miklos@szeredi.hu, Christoph Hellwig Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2564 Lines: 75 On 13 April 2011 19:26, Ric Wheeler wrote: > On 04/12/2011 05:36 PM, Michal Suchanek wrote: >> >> On 12 April 2011 22:31, Ric Wheeler  wrote: >>> >>> On 04/12/2011 11:00 AM, Michal Suchanek wrote: >>>> >>>> Hello, >>>> >>>> as some already know the Unionmount VFS union which has been in >>>> development for some years now is the only True Union (TM) that can be >>>> accepted into the kernel mainline by the VFS maintainers (for reasons >>>> of their own which you can surely find if you search the web or ask >>>> them directly). >>>> >>>> The current UnionMount version that can be found here: >>>> >>>> >>>> >>>> http://git.kernel.org/?p=linux/kernel/git/val/linux-2.6.git;a=shortlog;h=refs/heads/ext2_works >>>> >>>> works for me as good as aufs does. That is I can build a live CD using >>>> this unioning solution and it boots and runs without any apparent >>>> issues. >>>> >>>> There are probably many possible uses of the union which I did not >>>> test nor did I test long term stability of using the unioned >>>> filesystem. As far as ephemeral live systems go it works fine for me, >>>> though. >>>> >>>> The issue is that while the code is (nearly) finished it is not yet >>>> merged into mainline and as I am not familiar with the details of >>>> ever-changing Linux VFS layer forward-porting this code to current >>>> kernels is somewhat challenging. >>>> >>>> What is the plan with unionmount now? >>>> >>>> What is required  for it to be merged into mainline? >>>> >>>> Thanks >>>> >>>> Michal >>> >>> Hi Michal, >>> >>> People are actively looking to see what union mount (or overlayfs) >>> solution >>> to pursue. Val has shifted her focus away from kernel hacking these days, >>> but did refresh her patch set in the last month or so. >> >> I am not aware of such refreshed patch set, at least it is not >> published in her repo. >> > > Val posted the refreshed patches with the title on March 22nd: > > http://lwn.net/Articles/435019/ > That article references the same four months old repo which I mentioned at the start of the thread, only a slightly different branch. While it maybe useful for testing unionmount (which I already tried) it is not a patch against current kernel which could be used to build current live images. Thanks Michal -- 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/