Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756697Ab1FIDvL (ORCPT ); Wed, 8 Jun 2011 23:51:11 -0400 Received: from mail-pz0-f46.google.com ([209.85.210.46]:47075 "EHLO mail-pz0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753744Ab1FIDvI convert rfc822-to-8bit (ORCPT ); Wed, 8 Jun 2011 23:51:08 -0400 DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; b=XI7zIRxGksTOEfNAgD83ogPWCliI9n2v6pofFNZUoI6tEIJooKRVVXfwv7KYtyd+Pp YiQSxbkNSHHoVQMB49DPBdCCYs58RT1yN0tuPzxRHNs9fwOfIIOFwmD+yW79tiWWyQtt sDdn4AnjPybPhX9N7s1HmY+JQjIEJcFLNMu2A= MIME-Version: 1.0 In-Reply-To: References: <1307459283-22130-1-git-send-email-amir73il@users.sourceforge.net> Date: Thu, 9 Jun 2011 11:51:07 +0800 Message-ID: Subject: Re: [PATCH v1 00/30] Ext4 snapshots From: Yongqiang Yang To: "Amir G." Cc: Lukas Czerner , linux-ext4@vger.kernel.org, tytso@mit.edu, linux-kernel@vger.kernel.org, sandeen@redhat.com Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1432 Lines: 43 On Thu, Jun 9, 2011 at 11:18 AM, Amir G. wrote: > On Thu, Jun 9, 2011 at 4:59 AM, Yongqiang Yang wrote: >>> But I do understand the difference. And also, when it comes to fs level >>> snapshotting I would suspect that it would do something we can not do >>> with the current solutions, for example per-file or per-directory snapshots, >>> cat ext4 snapshots do that ? >> Hi Lukas, >> >> I noticed that there is no answer to this question in the thread. ?I > > I think I answered this question with No it can't ;-) I think this can be implemented easily by chattr and adding check in should_snapshot() or should_move_data(). And I thought Lukas are focusing on if ext4-snapshots can do this easily. So i said YES:-) > >> can give the question the answer that ext4 can snapshot per-file or >> per-directory, and can exclude some files or directories from being >> snapshotted. >> > > So the full answer is that ext4 snapshot CAN exclude > certain files/dirs from snapshot, but this feature is not fully implemented yet > (I have it in a dev branch) > >> -- >> Best Wishes >> Yongqiang Yang >> > -- Best Wishes Yongqiang Yang -- 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/