From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 2 Dec 2001 05:24:42 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 2 Dec 2001 05:24:31 -0500 Received: from ns.virtualhost.dk ([195.184.98.160]:49678 "EHLO virtualhost.dk") by vger.kernel.org with ESMTP id ; Sun, 2 Dec 2001 05:24:12 -0500 Date: Sun, 2 Dec 2001 11:23:51 +0100 From: Jens Axboe To: Anton Blanchard Cc: linux-kernel@vger.kernel.org Subject: Re: 2.5: PCI scatter gather list change Message-ID: <20011202112351.K25987@suse.de> In-Reply-To: <20011202153553.B5130@krispykreme> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20011202153553.B5130@krispykreme> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Dec 02 2001, Anton Blanchard wrote: > > Hi Jens, > > I got 2.5 booting on ppc64 today and noticed that the behaviour of > sglists has changed. Before we would get an array of sg->address, > sg->length pairs, we now get sg->page, sg->offset, sg->length triplets > (from blk_rq_map_sg). > > I dont care too much either way, but if this change is here to stay I'll > let the non intel maintainers know so they can fix up their pci dma > code. The change is here to stay, the ->address stuff will die in 2.5. Consider highmem pages which have no virtual mapping. -- Jens Axboe