From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S272257AbTHDXAk (ORCPT ); Mon, 4 Aug 2003 19:00:40 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S272279AbTHDXAk (ORCPT ); Mon, 4 Aug 2003 19:00:40 -0400 Received: from grieg.holmsjoen.com ([206.124.139.154]:25870 "EHLO grieg.holmsjoen.com") by vger.kernel.org with ESMTP id S272257AbTHDXAj (ORCPT ); Mon, 4 Aug 2003 19:00:39 -0400 Date: Mon, 4 Aug 2003 16:00:09 -0700 From: Randolph Bentson To: Stephan von Krawczynski Cc: Jesse Pollard , aebr@win.tue.nl, linux-kernel@vger.kernel.org Subject: Re: FS: hardlinks on directories Message-ID: <20030804160009.B3751@grieg.holmsjoen.com> References: <20030804141548.5060b9db.skraw@ithnet.com> <03080409334500.03650@tabby> <20030804170506.11426617.skraw@ithnet.com> <03080416092800.04444@tabby> <20030805003210.2c7f75f6.skraw@ithnet.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5.1i In-Reply-To: <20030805003210.2c7f75f6.skraw@ithnet.com>; from skraw@ithnet.com on Tue, Aug 05, 2003 at 12:32:10AM +0200 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Aug 05, 2003 at 12:32:10AM +0200, Stephan von Krawczynski wrote: > And in just the same way fs could provide a mode bit saying "hi, I am a > hardlink", and tar can then easily provide option number 1345 saying > "stay away from hardlinks". Perhaps not a bit, but rather another enumerated value in the type field of an inode. (Are there any values left?) Ok, lets consider this. Suppose that /a/b and /a/c both refer to the same directory, where /a/b is a traditional link, but /a/c is a "hardlink". What happens when one executes 'rmdir /a/b'? Does the directory it references disappear? If not, how would tar ever find it? (I have this vision of a disk full of these hardlink-only directories which tar and perhaps fsck cannot find.) -- Randolph Bentson bentson@holmsjoen.com