Re: [RFC][PATCH 1/3] contigous big page allocator

[FUJITA Tomonori]

On Thu, 14 Oct 2010 14:55:19 +0200
Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:

> > I think that at least one mainline driver in arm uses such trick but I
> > can't recall the name. Better to ask on the arm mainling list. Also I
> > heard that the are some out-of-tree patches about this.
> 
> I'm sure there are out of tree patches for lots of things,
> but at least in terms of merging mainline functionality
> use cases merged in the mainline tree are required.

I think that we already have drivers that need such feature in
mainline. They keep out-of-tree patches that give continuous memory to
these drivers reliably.

Anyway, Felipe pointed out one user. I also think that
drivers/media/video/videobuf-dma-contig.c also was already mentioned,
needs such feature.
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