From mboxrd@z Thu Jan 1 00:00:00 1970 From: Goswin von Brederlow Subject: Re: [fuse-devel] delta filesystem prototype Date: Mon, 09 Mar 2009 15:25:30 +0100 Message-ID: <87iqmivkmd.fsf@frosties.localdomain> References: <87sklyh3wu.fsf@frosties.localdomain> <200903010138.39329.bs_lists@aakef.fastmail.fm> <87eixhfsyi.fsf@frosties.localdomain> <87y6vlcr6p.fsf@frosties.localdomain> <87mybzd9nn.fsf@frosties.localdomain> <639.1236388786@jrobl> <871vt9iu21.fsf@frosties.localdomain> <8773.1236417375@jrobl> <87y6vex4l2.fsf@frosties.localdomain> <7936.1236605770@jrobl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Goswin von Brederlow , Miklos Szeredi , bs_lists@aakef.fastmail.fm, fuse-devel@lists.sourceforge.net, linux-fsdevel@vger.kernel.org To: hooanon05@yahoo.co.jp Return-path: Received: from fmmailgate03.web.de ([217.72.192.234]:49608 "EHLO fmmailgate03.web.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751753AbZCIPDt (ORCPT ); Mon, 9 Mar 2009 11:03:49 -0400 In-Reply-To: <7936.1236605770@jrobl> (hooanon's message of "Mon, 09 Mar 2009 22:36:10 +0900") Sender: linux-fsdevel-owner@vger.kernel.org List-ID: hooanon05@yahoo.co.jp writes: > Goswin von Brederlow: >> Only if you want to fully support hardlinks. Do you know of anything >> that really needs true hardlinks? > > Do you expect me the name of an application in real world? > I don't know. But I believe when fileA and fileB are hardlinked, users > and applications expect they always provide same filedata. > If deltafs never support hardlink, then I will say nothing about it. > > > J. R. Okajima Only place I use hardlinks is between binaries in a debian package and backups. In both cases they are totaly read-only and only a space saver. Not so that changes to one file will also show up in the other. I can't think of anything that would break if hardlinks would have a copy-on-write/copy-up semantic in delta-fs. MfG Goswin