From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Hellwig Subject: Re: [RFC][2.6 patch] Allow creation of new namespaces during mount system call Date: Thu, 21 Apr 2005 09:10:42 +0100 Message-ID: <20050421081042.GB17629@infradead.org> References: <20050420205152.GU13052@parcelfarce.linux.theplanet.co.uk> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Al Viro , Eric Van Hensbergen , Jamie Lokier , linux-fsdevel@vger.kernel.org, linuxram@us.ibm.com Return-path: Received: from pentafluge.infradead.org ([213.146.154.40]:34474 "EHLO pentafluge.infradead.org") by vger.kernel.org with ESMTP id S261550AbVDUIKq (ORCPT ); Thu, 21 Apr 2005 04:10:46 -0400 To: Bryan Henderson Content-Disposition: inline In-Reply-To: Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org On Wed, Apr 20, 2005 at 05:23:10PM -0700, Bryan Henderson wrote: > >That assumes that everyone has the same stuff in the same places. I.e. > >that there is a universal tree with different subset hidden from > different > >processes. But that is obviously a wrong approach - e.g. it loses > ability > >to bind different stuff on the same place in different namespaces. > > Aren't you trying to boil another egg in my pot? In Linux today, everyone > (every process on the same Linux system, that is) has the same stuff in > the same place. No. I'm running various different namespace here, as part of a command to setup chroots sanely. > Not sure which reality you're talking about. I don't think a directory > has a real absolute pathname, because I think the person who mounts the > filesystem that contains it chooses part of its absolute pathname for the > lifetime of the mount. But as between multiple processes on the same > system at the same time, yeah, the directory has one name. No.