From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 14 Aug 2007 02:16:24 +0200 From: Andi Kleen Subject: Re: [PATCH 3/4] Embed zone_id information within the zonelist->zones pointer Message-ID: <20070814001624.GO3406@bingen.suse.de> References: <20070813225020.GE3406@bingen.suse.de> <20070813225841.GG3406@bingen.suse.de> <20070813230801.GH3406@bingen.suse.de> <20070813234217.GI3406@bingen.suse.de> <20070813235518.GK3406@bingen.suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org Return-Path: To: Christoph Lameter Cc: Andi Kleen , Mel Gorman , Lee.Schermerhorn@hp.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: On Mon, Aug 13, 2007 at 04:12:17PM -0700, Christoph Lameter wrote: > On Tue, 14 Aug 2007, Andi Kleen wrote: > > > > What would be the point? > > > > "so that drivers not need to ifdef" > > But they use GFP_DMA right now and drivers cannot use DMA32 if they want The way it was originally designed was that they use GFP_DMA32, which would map to itself on x86-64, to GFP_DMA on ia64 and to GFP_KERNEL on i386. Unfortunately that seems to have bitrotted (perhaps I should have better documented it) > to be cross platforms compatible? Doesnt the dma API completely do away > with these things? No GFP_DMA32 in my current plan is still there. -Andi -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org