From mboxrd@z Thu Jan 1 00:00:00 1970 From: "H. Peter Anvin" Subject: Re: Versioning file system Date: Tue, 19 Jun 2007 15:13:33 -0700 Message-ID: <4678550D.6070705@zytor.com> References: <46731169.2090002@hawkeye.stone.uk.eu.org> <4673182B.4090800@redhat.com> <46739E89.1080003@hawkeye.stone.uk.eu.org> <46781A5B.9090104@redhat.com> <20070619204317.GR10008@csclub.uwaterloo.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: Lennart Sorensen , Chris Snook , Jack Stone , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, akpm@linux-foundation.org, viro@zeniv.linux.org.uk, alan To: david@lang.hm Return-path: Received: from terminus.zytor.com ([192.83.249.54]:39591 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752332AbXFSWNv (ORCPT ); Tue, 19 Jun 2007 18:13:51 -0400 In-Reply-To: Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org david@lang.hm wrote: > > the only trouble I ever had with the .snapshot approach is when tar or > find would decend down into the .snapshot when I didn't really intend > for it to do so. > Netapp optionally made .snapshot not show up in readdir, which solved that problem. I have a bigger issue with it starting with only one dot, which is traditionally used for user configuration information. I think ..snapshot would have been a better choice, and by extension leaving double-dot filenames as filesystem namespace (I know that contradicts POSIX, but the only namespace available in POSIX is /../ which is a global namespace.) -hpa