From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267860AbUHZInK (ORCPT ); Thu, 26 Aug 2004 04:43:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267868AbUHZIkt (ORCPT ); Thu, 26 Aug 2004 04:40:49 -0400 Received: from rwcrmhc13.comcast.net ([204.127.198.39]:48309 "EHLO rwcrmhc13.comcast.net") by vger.kernel.org with ESMTP id S268021AbUHZIk3 (ORCPT ); Thu, 26 Aug 2004 04:40:29 -0400 Message-ID: <412DA1FD.4010507@namesys.com> Date: Thu, 26 Aug 2004 01:40:29 -0700 From: Hans Reiser User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.2) Gecko/20040803 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rik van Riel CC: Mikulas Patocka , Linus Torvalds , Christoph Hellwig , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Alexander Lyamin aka FLX , ReiserFS List Subject: Re: silent semantic changes with reiser4 References: In-Reply-To: X-Enigmail-Version: 0.85.0.0 X-Enigmail-Supports: pgp-inline, pgp-mime Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Rik van Riel wrote: > > >If your backup program dives into the file despite stat() >saying it's a file and you restore your backup, how are the >"file is a file" semantics preserved ? > >Obviously this is something that needs to be sorted out at >the VFS layer. > It needs to be sorted out, whether it is sorted out at the VFS layer is unimportant. > A filesystem specific backup and restore >program isn't desirable, if only because then there'd be >no way for Hans's users to switch to reiser5 in 2010 ;) > > > It might be that we need a filenameA/metas/backup method for all of our file plugins, which if cat'd gives a set of instructions which if executed are adequate for restoring filenameA. Hans