Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S264104AbTEGRDI (ORCPT ); Wed, 7 May 2003 13:03:08 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S264118AbTEGRDH (ORCPT ); Wed, 7 May 2003 13:03:07 -0400 Received: from neon-gw-l3.transmeta.com ([63.209.4.196]:27401 "EHLO neon-gw.transmeta.com") by vger.kernel.org with ESMTP id S264104AbTEGRDB (ORCPT ); Wed, 7 May 2003 13:03:01 -0400 Date: Wed, 7 May 2003 10:15:00 -0700 (PDT) From: Linus Torvalds To: Jens Axboe cc: Bartlomiej Zolnierkiewicz , Linux Kernel Subject: Re: [PATCH] 2.5 ide 48-bit usage In-Reply-To: <20030507164613.GN823@suse.de> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 675 Lines: 20 On Wed, 7 May 2003, Jens Axboe wrote: > > I dunno what the purpose of that would be exactly, I guess to cater to > some hardware odditites? And testing. In particular, you might want to test whether a device properly supports 48-bit addressing, either from the kernel or from user programs. Also, if you want to re-create some particular IO pattern for debugging, you may want to explicitly use 48-bit addressing. Linus - 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/