Re: ZONE_DMA

Christoph Lameter
2006-09-22T18:41:20Z

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.