linux-kernel - Re: [PATCH 3/4] Embed zone_id information within the zonelist->zones pointer

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Message-ID: <Pine.LNX.4.64.0708131611001.19910@schroedinger.engr.sgi.com>
Date:	Mon, 13 Aug 2007 16:12:17 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Andi Kleen <ak@...e.de>
cc:	Mel Gorman <mel@...net.ie>, Lee.Schermerhorn@...com,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [PATCH 3/4] Embed zone_id information within the zonelist->zones
 pointer

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 
to be cross platforms compatible? Doesnt the dma API completely do away 
with these things?

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