#define __pud(x) ((pud_t) { __p4d(x) })
#define p4d_page(p4d) (pud_page((pud_t){ p4d }))
-#define p4d_page_vaddr(p4d) (pud_page_vaddr((pud_t){ p4d }))
+#define p4d_page_vaddr(p4d) (pud_pgtable((pud_t){ p4d }))
/*
* allocating and freeing a pud is trivial: the 1-entry pud is