Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263801AbTKFRve (ORCPT ); Thu, 6 Nov 2003 12:51:34 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263805AbTKFRv2 (ORCPT ); Thu, 6 Nov 2003 12:51:28 -0500 Received: from ns.suse.de ([195.135.220.2]:47548 "EHLO Cantor.suse.de") by vger.kernel.org with ESMTP id S263801AbTKFRvV (ORCPT ); Thu, 6 Nov 2003 12:51:21 -0500 Date: Thu, 6 Nov 2003 18:50:32 +0100 From: Jens Axboe To: Arjan van de Ven Cc: Andrew Vasquez , Mike Anderson , Linux-Kernel , Linux-SCSI Subject: Re: [ANNOUNCE] QLogic qla2xxx driver update available (v8.00.00b6). Message-ID: <20031106175032.GO437@suse.de> References: <20031106171409.GN437@suse.de> <1068140592.5234.8.camel@laptop.fenrus.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1068140592.5234.8.camel@laptop.fenrus.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 869 Lines: 25 On Thu, Nov 06 2003, Arjan van de Ven wrote: > On Thu, 2003-11-06 at 18:14, Jens Axboe wrote: > > > They were there at the same time as Linux supported > 1GB IO at all. So > > that is incorrect, it's been there all along. > > .... ia64 Yeah you are right, on 64-bit platforms that could have happened. I actually thought that CONTIGUOUS_BUFFERS took care of 4GB, but on checking it does not. So clustering should have been disabled then (which in the in-kernel drive it is not). Now both 2.4 and 2.6 make that guarentee. The only argument for disabling clustering would be for 2.4 for CPU cycle reasons. -- Jens Axboe - 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/