From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753382Ab0CCXF2 (ORCPT ); Wed, 3 Mar 2010 18:05:28 -0500 Received: from terminus.zytor.com ([198.137.202.10]:42803 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751787Ab0CCXFX (ORCPT ); Wed, 3 Mar 2010 18:05:23 -0500 Message-ID: <4B8EEB2D.4090106@zytor.com> Date: Wed, 03 Mar 2010 15:05:17 -0800 From: "H. Peter Anvin" User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.7) Gecko/20100120 Fedora/3.0.1-1.fc12 Thunderbird/3.0.1 MIME-Version: 1.0 To: Daniel Taylor CC: OGAWA Hirofumi , Andrew Morton , linux-kernel@vger.kernel.org Subject: Re: [PATCH] msdos: add support for large disks References: <3E0C3AE547FA504DA5E89EA5A24AC85803E2BD2D@wdscexbe01.sc.wdc.com><20100301141335.395dc4c3.akpm@linux-foundation.org> <873a0h1p2c.fsf@devron.myhome.or.jp> <3E0C3AE547FA504DA5E89EA5A24AC85803E2BD53@wdscexbe01.sc.wdc.com> In-Reply-To: <3E0C3AE547FA504DA5E89EA5A24AC85803E2BD53@wdscexbe01.sc.wdc.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 03/03/2010 02:50 PM, Daniel Taylor wrote: > > The drives report physical/logical sector sizes of 4096 bytes, which the > kernel correctly detects. 32-bit fields in the MBR are then sufficient for > storage capacites >2TiB (up to 16 TiB), and the storage in struct > parsed_partitions is already sector_t. > It's probably worth noting that such media: a) will not work with anything that is based on disk images; b) will not be bootable on most existing systems. Both of these are going to be issues for people in real-life use (and yes, people boot from USB disks -- trust me, when it doesn't work they send the bug reports to *me* rather than to the hw/bios vendors.) Of course, so is XP compatibility. -hpa