Re: [PATCH 2/2] kvm: Use huge pages for DAX-backed files

[Barret Rhoden]

On 2018-11-13 at 10:36 David Hildenbrand <david@xxxxxxxxxx> wrote:
> > Note that KVM already faulted in the page (or huge page) in the host's
> > page table, and we hold the KVM mmu spinlock (grabbed before checking
> > the mmu seq).  
> 
> I wonder if the KVM mmu spinlock is enough for walking (not KVM
> exclusive) host page tables. Can you elaborate?

I'll update the commit message with the info from Paolo's email (about
kvm_mmu_notifier_invalidate_range_end()).

Thanks,

Barret