Re: More thoughts on getting rid of ZONE_DMA

From: Andi Kleen
Date: Fri Sep 22 2006 - 20:41:13 EST


On Saturday 23 September 2006 02:25, Christoph Lameter wrote:
> Another solution may be to favor high adresses in the page allocator?

We used to do that, but it got changed because IO request merging without
IOMMU works much better if you start low and go up instead of the other
way round.

-Andi
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