Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S271638AbTGQXud (ORCPT ); Thu, 17 Jul 2003 19:50:33 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S271639AbTGQXud (ORCPT ); Thu, 17 Jul 2003 19:50:33 -0400 Received: from inet-mail2.oracle.com ([148.87.2.202]:1686 "EHLO inet-mail2.oracle.com") by vger.kernel.org with ESMTP id S271638AbTGQXub (ORCPT ); Thu, 17 Jul 2003 19:50:31 -0400 Date: Thu, 17 Jul 2003 17:04:45 -0700 From: Joel Becker To: Andries Brouwer Cc: Andrew Morton , miquels@cistron.nl, linux-kernel@vger.kernel.org Subject: Re: [PATCH] print_dev_t for 2.6.0-test1-mm Message-ID: <20030718000444.GG19891@ca-server1.us.oracle.com> Mail-Followup-To: Andries Brouwer , Andrew Morton , miquels@cistron.nl, linux-kernel@vger.kernel.org References: <20030716184609.GA1913@kroah.com> <20030717014410.A2026@pclin040.win.tue.nl> <20030716164917.2a7a46f4.akpm@osdl.org> <20030717122600.A2302@pclin040.win.tue.nl> <20030717131955.D2302@pclin040.win.tue.nl> <20030717145507.3ce5042c.akpm@osdl.org> <20030718002451.A2569@pclin040.win.tue.nl> <20030717224307.GF19891@ca-server1.us.oracle.com> <20030718011115.A2600@pclin040.win.tue.nl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030718011115.A2600@pclin040.win.tue.nl> X-Burt-Line: Trees are cool. X-Red-Smith: Ninety feet between bases is perhaps as close as man has ever come to perfection. User-Agent: Mutt/1.5.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1002 Lines: 29 On Fri, Jul 18, 2003 at 01:11:15AM +0200, Andries Brouwer wrote: > :-) A surprising question. > Why expand that? > Because we would like to use more than 16 bits in device numbers. Yes, but there is a nice simplicity in saying filesystems that support 64bit device numbers get the expanded space, and filesystems that cannot are limited to 16bits. Most modern systems would have an updated set of filesystems. All pre-existing filesystems have only 16bit device numbers. All new mknod64() calls will only work on filesystems that can store 64bits. Joel -- "Hey mister if you're gonna walk on water, Could you drop a line my way?" Joel Becker Senior Member of Technical Staff Oracle Corporation E-mail: joel.becker@oracle.com Phone: (650) 506-8127 - 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/