Re: ZONE_DMA

[Christoph Lameter]

On Fri, 22 Sep 2006, Jesse Barnes wrote:

> Right, the internals are arch specific and don't necessarily have to rely 
> on a zone, depending on their DMA constraints.

>From what I can see the arch specific do some tricks and then pick GFP_DMA 
or something to get memory that is appropriately limited. Having the 
ability to retrieve pages from a certain range from the page allocator 
would fix this issue and improve the ability of devices to allocate 
memory.

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