[RFC PATCH 3/5] mm/vma: add support for peer to peer to device vma

[Jason Gunthorpe]

On Wed, Jan 30, 2019 at 05:30:27PM -0500, Jerome Glisse wrote:

> > What is the problem in the HMM mirror that it needs this restriction?
> 
> No restriction at all here. I think i just wasn't understood.

Are you are talking about from the exporting side - where the thing
creating the VMA can really only put one distinct object into it?

Jason