From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755431AbZBZASm (ORCPT ); Wed, 25 Feb 2009 19:18:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751338AbZBZASc (ORCPT ); Wed, 25 Feb 2009 19:18:32 -0500 Received: from acsinet11.oracle.com ([141.146.126.233]:32846 "EHLO acsinet11.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751236AbZBZASb (ORCPT ); Wed, 25 Feb 2009 19:18:31 -0500 To: "H. Peter Anvin" Cc: "Martin K. Petersen" , Matthew Wilcox , linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org, sandeen@redhat.com Subject: Re: ATA support for 4k sector size From: "Martin K. Petersen" Organization: Oracle References: <1235600698-6446-1-git-send-email-matthew@wil.cx> <49A5CBF7.9000501@zytor.com> <49A5D76A.3010301@zytor.com> <49A5DAE7.3060409@zytor.com> <49A5DDF7.9070301@zytor.com> Date: Wed, 25 Feb 2009 19:17:08 -0500 In-Reply-To: <49A5DDF7.9070301@zytor.com> (H. Peter Anvin's message of "Wed\, 25 Feb 2009 16\:10\:31 -0800") Message-ID: User-Agent: Gnus/5.11 (Gnus v5.11) Emacs/22.2 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Source-IP: acsmt706.oracle.com [141.146.40.84] X-Auth-Type: Internal IP X-CT-RefId: str=0001.0A090204.49A5DF87.01CC:SCFSTAT928724,ss=1,fgs=0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >>>>> "hpa" == H Peter Anvin writes: hpa> That's ridiculously stupid. All you need is an offset parameter, hpa> which can be flipped at will. Now, flipping it will obviously hpa> scramble all data, but there is absolutely no reason why it hpa> shouldn't be possible to instantaneously flip it back and forth. I'm just quoting what I was told a few months ago. I'm not participating in IDEMA and for all I know that approach could have changed again. I'll ask one of my contacts to find out what the current status is... -- Martin K. Petersen Oracle Linux Engineering