[Xen-devel] Re: pv_ops & gntdev?

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

Gerd Hoffmann wrote:
> Also: 2.6.18 gntdev does some funky interaction with the balloon driver.
>  What is the point in doing so?
>   
Oh, the alloc_empty_pages_and_pagevec() stuff?  It allocates some pages, 
just for their pfn slots, and then returns the underlying memory back to 
Xen.  It uses the pfns to slot granted pages into.
I think.

   J

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