Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261339AbVDMQOO (ORCPT ); Wed, 13 Apr 2005 12:14:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261391AbVDMQOO (ORCPT ); Wed, 13 Apr 2005 12:14:14 -0400 Received: from mail.shareable.org ([81.29.64.88]:16545 "EHLO mail.shareable.org") by vger.kernel.org with ESMTP id S261339AbVDMQOE (ORCPT ); Wed, 13 Apr 2005 12:14:04 -0400 Date: Wed, 13 Apr 2005 17:13:44 +0100 From: Jamie Lokier To: Miklos Szeredi Cc: bulb@ucw.cz, 7eggert@gmx.de, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, hch@infradead.org, akpm@osdl.org, viro@parcelfarce.linux.theplanet.co.uk Subject: Re: [RFC] FUSE permission modell (Was: fuse review bits) Message-ID: <20050413161344.GC12825@mail.shareable.org> References: <20050412144529.GE10995@mail.shareable.org> <20050412160409.GH10995@mail.shareable.org> <20050412164401.GA14149@mail.shareable.org> <20050412171338.GA14633@mail.shareable.org> <20050413125609.GA9571@vagabond> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1095 Lines: 28 Miklos Szeredi wrote: > > > Aren't there some assumptions in VFS that currently make this > > > impossible? > > > > I believe it's OK with VFS, but applications would be confused to death. > > Well, there really is one issue -- dentries have exactly one parent, so > > what do you do when opening a file with hardlinks as a directory? (In > > fact IIRC that is what lead to all the funny talk about mountpoints, > > since they don't have this limitation) > > OK, that makes sense. > > It would be quite interesting to see how applications react. Maybe > I'll hack something up :) Look up the rather large linux-kernel & linux-fsdevel thread "silent semantic changes with reiser4" and it's followup threads, from last year. It's already been tried. You will also find sensible ideas on what semantics it should have to do it properly. -- Jamie - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/