pte_access_permitted
#define pte_access_permitted pte_access_permitted
(pte_access_permitted(pmd_pte(pmd), (write)))
(pte_access_permitted(pud_pte(pud), (write)))
#define pte_access_permitted pte_access_permitted
return pte_access_permitted(pmd_pte(pmd), write);
#define pte_access_permitted pte_access_permitted
return pte_access_permitted(pud_pte(pud), write);
return pte_access_permitted(p4d_pte(p4d), write);
#define pte_access_permitted pte_access_permitted
#define pte_access_permitted pte_access_permitted
#define pte_access_permitted pte_access_permitted
#define pte_access_permitted pte_access_permitted
#ifndef pte_access_permitted
if (!pte_access_permitted(pte, flags & FOLL_WRITE))