Re: [PATCH 0/8] Optional ZONE_DMA V1

Arjan van de Ven
2006-09-12T07:30:05Z

On Mon, 2006-09-11 at 15:27 -0700, Christoph Lameter wrote:
> Optional ZONE_DMA
>
> This patch follows up on the earlier work in Andrew's tree to reduce
> the number of zones. The patches allow to go to a minimum of 2 zones.
> This one allows also to make ZONE_DMA optional and therefore the
> number of zones can be reduced to one.
>
> ZONE_DMA is usually used for ISA DMA devices. Typically modern hardware
> does not have any of these anymore.

in the x86 / x86-64 world that statement is not correct ;(

while there is no physical bus there is still too much "be exactly as
if" stuff around.