From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161136AbWF1F4T (ORCPT ); Wed, 28 Jun 2006 01:56:19 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161139AbWF1F4T (ORCPT ); Wed, 28 Jun 2006 01:56:19 -0400 Received: from pentafluge.infradead.org ([213.146.154.40]:4027 "EHLO pentafluge.infradead.org") by vger.kernel.org with ESMTP id S1161136AbWF1F4S (ORCPT ); Wed, 28 Jun 2006 01:56:18 -0400 Date: Wed, 28 Jun 2006 06:56:11 +0100 From: Christoph Hellwig To: Dave Hansen Cc: Andrew Morton , linux-kernel@vger.kernel.org, herbert@13thfloor.at, viro@ftp.linux.org.uk, serue@us.ibm.com Subject: Re: [PATCH 00/20] Mount writer count and read-only bind mounts (v3) Message-ID: <20060628055611.GA4023@infradead.org> Mail-Followup-To: Christoph Hellwig , Dave Hansen , Andrew Morton , linux-kernel@vger.kernel.org, herbert@13thfloor.at, viro@ftp.linux.org.uk, serue@us.ibm.com References: <20060627221436.77CCB048@localhost.localdomain> <20060627183822.667d9d49.akpm@osdl.org> <1151459436.24103.70.camel@localhost.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1151459436.24103.70.camel@localhost.localdomain> User-Agent: Mutt/1.4.2.1i X-SRS-Rewrite: SMTP reverse-path rewritten from by pentafluge.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Tue, Jun 27, 2006 at 06:50:36PM -0700, Dave Hansen wrote: > > umm, what's it all for? > > Mostly for vserver, for now. They allow a filesystem to be r/w, but > have r/o views into it. This is really handy so that every vserver can > use a common install but still allow the administrator to update it. It's useful for much more then just containers. Even with a plain chroot or just any real multi-user system it's massively useful.