From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264284AbTDKBP6 (for ); Thu, 10 Apr 2003 21:15:58 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264283AbTDKBP6 (for ); Thu, 10 Apr 2003 21:15:58 -0400 Received: from e34.co.us.ibm.com ([32.97.110.132]:4312 "EHLO e34.co.us.ibm.com") by vger.kernel.org with ESMTP id S264281AbTDKBP5 convert rfc822-to-8bit (for ); Thu, 10 Apr 2003 21:15:57 -0400 Content-Type: text/plain; charset=US-ASCII From: Badari Pulavarty To: Roman Zippel Subject: Re: [patch for playing] Patch to support 4000 disks and maintain backward compatibility Date: Thu, 10 Apr 2003 18:25:12 -0700 User-Agent: KMail/1.4.1 Cc: linux-kernel@vger.kernel.org, References: <200304101339.49895.pbadari@us.ibm.com> In-Reply-To: MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Message-Id: <200304101825.12299.pbadari@us.ibm.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Thursday 10 April 2003 05:08 pm, Roman Zippel wrote: > Hi, > > On Thu, 10 Apr 2003, Badari Pulavarty wrote: > > This patch addresses the backward compatibility with device nodes > > issue. All the new disks will be addressed by only last major. > > This nicely demonstrates, that it's not exactly becoming nicer, when one > has to deal with compatibility. This is one more reason to at least > consider a more general solution, from which all drivers can benefit from. I am all for more general solution (dynamic assignment), if I can get (1) backward compatibility with device nodes (2) device nodes get updated automagically whenever my changes. (may be due to insmod/rmmod, reboot etc..) I can't see (2) happening easily. I know that Greg KH is working on udev (/dev/ memory filesystem). Once that happens, we have to change drivers/subsystems (we need) to make dynamic allocation. All of this Is going to happen for 2.6 ? Thats why, I am trying to come out with half-cooked workable solution for 2.6. Thanks, Badari