Re: [PATCH v4 2/2] kvm: Use huge pages for DAX-backed files

[Barret Rhoden]

On 12/12/19 7:33 AM, Liran Alon wrote:
> > +	/*
> > +	 * Our caller grabbed the KVM mmu_lock with a successful
> > +	 * mmu_notifier_retry, so we're safe to walk the page table.
> > +	 */
> > +	switch (dev_pagemap_mapping_shift(hva, current->mm)) {
> Doesnât dev_pagemap_mapping_shift() get âstruct pageâ as first parameter?
> Was this changed by a commit I missed?

I changed this in Patch 1.  The place I call it in KVM has the address 
and mm available, which is the only think dev_pagemap_mapping_shift() 
really needs.  (The first thing it did was convert page to address).

I'll add some more text to patch 1's commit message about that.

Thanks,

Barret