pmd_folio
folio = pmd_folio(*pmd);
folio = pmd_folio(orig_pmd);
if (!folio_can_map_prot_numa(pmd_folio(*pmd), vma,
folio = pmd_folio(orig_pmd);
folio = pmd_folio(*pmd);
folio = pmd_folio(*pmdp);
folio = pmd_folio(*pmd);
struct folio *folio = pmd_folio(*src_pmd);