From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262784AbUAHAmJ (ORCPT ); Wed, 7 Jan 2004 19:42:09 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262902AbUAHAmJ (ORCPT ); Wed, 7 Jan 2004 19:42:09 -0500 Received: from mail.kroah.org ([65.200.24.183]:40577 "EHLO perch.kroah.org") by vger.kernel.org with ESMTP id S262784AbUAHAmH (ORCPT ); Wed, 7 Jan 2004 19:42:07 -0500 Date: Wed, 7 Jan 2004 16:41:24 -0800 From: Greg KH To: "Martin J. Bligh" Cc: Linus Torvalds , Andrey Borzenkov , linux-hotplug-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org Subject: Re: removable media revalidation - udev vs. devfs or static /dev Message-ID: <20040108004124.GA3388@kroah.com> References: <200401012333.04930.arvidjaar@mail.ru> <20040103055847.GC5306@kroah.com> <20040107185656.GB31827@kroah.com> <20040107195032.GB823@kroah.com> <14870000.1073521945@[10.10.2.4]> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <14870000.1073521945@[10.10.2.4]> User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Jan 07, 2004 at 04:32:26PM -0800, Martin J. Bligh wrote: > >> NOTE! We do have an alternative: if we were to just make block device > >> nodes support "readdir" and "lookup", you could just do > >> > >> open("/dev/sda/1" ...) > >> > >> and it magically works right. I've wanted to do this for a long time, but > >> every time I suggest allowing it, people scream. > > > > Hm, that would be nice. I don't remember seeing it being proposed > > before, what are the main complaints people have with this? > > Couldn't the partitions go under "/dev/sdaX/{1,2,3}" and solve the same > problem without doing magic on the devices? No, that's not the point. As discussed on irc, I think you now understand the issue (partitions not being present, media changed without kernel knowing about it, etc.) thanks, greg k-h