Re: [patch 2/6] mmu_notifier: Callbacks to invalidate address ranges

Christoph Lameter
2008-01-30T00:35:54Z

On Tue, 29 Jan 2008, Jack Steiner wrote:

> > That is true for your implementation and to address Robin's issues. Jack:
> > Is that true for the GRU?
>
> I'm not sure I understand the question. The GRU never (currently) takes
> a reference on a page. It has no mechanism for tracking pages that
> were exported to the external TLBs.

Thats what I was looking for. Thanks. KVM takes a refcount and so does
XPmem.