From mboxrd@z Thu Jan 1 00:00:00 1970 From: "H. Peter Anvin" Subject: Re: Versioning file system Date: Mon, 18 Jun 2007 14:31:14 -0700 Message-ID: <4676F9A2.6010007@zytor.com> References: <8wst3-3kh-31@gated-at.bofh.it> <8wsCC-3wf-21@gated-at.bofh.it> <8wsW4-3UY-3@gated-at.bofh.it> <8wJal-3KA-1@gated-at.bofh.it> <8xm22-4Ql-1@gated-at.bofh.it> <8xq5G-32l-7@gated-at.bofh.it> <8xs7w-69W-21@gated-at.bofh.it> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Bodo Eggert <7eggert@gmx.de>, Theodore Tso , =?ISO-8859-1?Q?J=F6rn_Engel?= , Jack Stone , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, akpm@linux-foundation.org, viro@zeniv.linux.org.uk To: alan Return-path: Received: from terminus.zytor.com ([192.83.249.54]:41988 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1760134AbXFRVbg (ORCPT ); Mon, 18 Jun 2007 17:31:36 -0400 In-Reply-To: Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org alan wrote: > On Mon, 18 Jun 2007, Bodo Eggert wrote: > >> alan wrote: >> >>> I just wish that people would learn from the mistakes of others. The >>> MacOS is a prime example of why you do not want to use a forked >>> filesystem, yet some people still seem to think it is a good idea. >>> (Forked filesystems tend to be fragile and do not play well with >>> non-forked filesystems.) >> >> What's the conceptual difference between forks and extended user >> attributes? > > Forks tend to contain more than just extended attributes. They contain > all sorts of other meta-data including icons, descriptions, author > information, copyright data, and whatever else can be shoveled into them > by the author/user. And that makes them different from extended attributes, how? Both of these really are nothing but ad hocky syntactic sugar for directories, sometimes combined with in-filesystem support for small data items. -hpa