[PATCH v2 2/2] KVM: arm64: Use folio for THP adjustment

[Matthew Wilcox]

On Fri, Sep 29, 2023 at 05:24:00PM +1000, Gavin Shan wrote:
> > +		size_t sz = folio_size(pfn_folio(pfn));
> 
> Is it possible that a tail page is returned from __gfn_to_pfn_memslot()? folio_size()
> doesn't work for a tail page because order 0 is returned for tail pages. It seems it's

pfn_folio() can't return a tail page.  That's the point of folios; they
aren't tail pages.  They're either a head page or an order-0 page.