[RFC/PATCH] powerpc: Rewrite IO allocation & mapping on powerpc64

[Benjamin Herrenschmidt]

On Tue, 2007-05-15 at 12:56 +0200, Christoph Hellwig wrote:
> Some comments:
> 
>  - the comment above __iounmap_at needs some updates
>  - instead of the fake vm_struct in __iounmap_at just changed the
>    calling conventions for unmap_vm_area to take a start and len
>    value - there's only two callers including the powerpc ioremap
>    code for this.  At the same time it might also get a better name.

Yeah, good idea, I'll have a look.

Ben.