From: Yongqiang Yang Subject: Re: [PATCH v1 00/30] Ext4 snapshots Date: Thu, 9 Jun 2011 11:51:07 +0800 Message-ID: References: <1307459283-22130-1-git-send-email-amir73il@users.sourceforge.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: Lukas Czerner , linux-ext4@vger.kernel.org, tytso@mit.edu, linux-kernel@vger.kernel.org, sandeen@redhat.com To: "Amir G." Return-path: 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 In-Reply-To: Sender: linux-ext4-owner@vger.kernel.org List-ID: 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 l= evel >>> snapshotting I would suspect that it would do something we can not = do >>> with the current solutions, for example per-file or per-directory s= napshots, >>> cat ext4 snapshots do that ? >> Hi Lukas, >> >> I noticed that there is no answer to this question in the thread. =A0= 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 imple= mented yet > (I have it in a dev branch) > >> -- >> Best Wishes >> Yongqiang Yang >> > --=20 Best Wishes Yongqiang Yang -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html