check_pte_access
if (unlikely(!check_pte_access(access, old_pte)))
if (unlikely(!check_pte_access(access, old_pte)))
if (unlikely(!check_pte_access(access, old_pte)))
if (unlikely(!check_pte_access(access, old_pmd)))
if (!check_pte_access(access, pte_val(*ptep))) {
if (unlikely(!check_pte_access(access, old_pte)))