280 	pud_t *pud;  in huge_pte_alloc()  local
285 	pud = pud_alloc(mm, p4d, addr);  in huge_pte_alloc()
286 	if (!pud)  in huge_pte_alloc()
289 		return (pte_t *)pud;  in huge_pte_alloc()
290 	pmd = pmd_alloc(mm, pud, addr);  in huge_pte_alloc()
303 	pud_t *pud;  in huge_pte_offset()  local
312 	pud = pud_offset(p4d, addr);  in huge_pte_offset()
313 	if (pud_none(*pud))  in huge_pte_offset()
315 	if (is_hugetlb_pud(*pud))  in huge_pte_offset()
316 		return (pte_t *)pud;  in huge_pte_offset()
317 	pmd = pmd_offset(pud, addr);  in huge_pte_offset()
404 int pud_huge(pud_t pud)  in pud_huge()  argument
406 	return !pud_none(pud) &&  in pud_huge()
407 		(pud_val(pud) & (_PAGE_VALID|_PAGE_PUD_HUGE)) != _PAGE_VALID;  in pud_huge()
420 static void hugetlb_free_pmd_range(struct mmu_gather *tlb, pud_t *pud,  in hugetlb_free_pmd_range()  argument
429 	pmd = pmd_offset(pud, addr);  in hugetlb_free_pmd_range()
451 	pmd = pmd_offset(pud, start);  in hugetlb_free_pmd_range()
452 	pud_clear(pud);  in hugetlb_free_pmd_range()
461 	pud_t *pud;  in hugetlb_free_pud_range()  local
466 	pud = pud_offset(p4d, addr);  in hugetlb_free_pud_range()
469 		if (pud_none_or_clear_bad(pud))  in hugetlb_free_pud_range()
471 		if (is_hugetlb_pud(*pud))  in hugetlb_free_pud_range()
472 			pud_clear(pud);  in hugetlb_free_pud_range()
474 			hugetlb_free_pmd_range(tlb, pud, addr, next, floor,  in hugetlb_free_pud_range()
476 	} while (pud++, addr = next, addr != end);  in hugetlb_free_pud_range()
489 	pud = pud_offset(p4d, start);  in hugetlb_free_pud_range()
491 	pud_free_tlb(tlb, pud, start);  in hugetlb_free_pud_range()