3393 bool is_hugetlb_entry_migration(pte_t pte)  in is_hugetlb_entry_migration()  argument
3397 	if (huge_pte_none(pte) || pte_present(pte))  in is_hugetlb_entry_migration()
3399 	swp = pte_to_swp_entry(pte);  in is_hugetlb_entry_migration()
3406 static int is_hugetlb_entry_hwpoisoned(pte_t pte)  in is_hugetlb_entry_hwpoisoned()  argument
3410 	if (huge_pte_none(pte) || pte_present(pte))  in is_hugetlb_entry_hwpoisoned()
3412 	swp = pte_to_swp_entry(pte);  in is_hugetlb_entry_hwpoisoned()
3526 	pte_t pte;  in __unmap_hugepage_range()  local
3567 		pte = huge_ptep_get(ptep);  in __unmap_hugepage_range()
3568 		if (huge_pte_none(pte)) {  in __unmap_hugepage_range()
3577 		if (unlikely(!pte_present(pte))) {  in __unmap_hugepage_range()
3583 		page = pte_page(pte);  in __unmap_hugepage_range()
3602 		pte = huge_ptep_get_and_clear(mm, address, ptep);  in __unmap_hugepage_range()
3604 		if (huge_pte_dirty(pte))  in __unmap_hugepage_range()
3731 	pte_t pte;  in hugetlb_cow()  local
3739 	pte = huge_ptep_get(ptep);  in hugetlb_cow()
3740 	old_page = pte_page(pte);  in hugetlb_cow()
3783 			BUG_ON(huge_pte_none(pte));  in hugetlb_cow()
3785 			BUG_ON(huge_pte_none(pte));  in hugetlb_cow()
3789 				   pte_same(huge_ptep_get(ptep), pte)))  in hugetlb_cow()
3825 	if (likely(ptep && pte_same(huge_ptep_get(ptep), pte))) {  in hugetlb_cow()
4399 		pte_t *pte;  in follow_hugetlb_page()  local
4420 		pte = huge_pte_offset(mm, vaddr & huge_page_mask(h),  in follow_hugetlb_page()
4422 		if (pte)  in follow_hugetlb_page()
4423 			ptl = huge_pte_lock(h, mm, pte);  in follow_hugetlb_page()
4424 		absent = !pte || huge_pte_none(huge_ptep_get(pte));  in follow_hugetlb_page()
4435 			if (pte)  in follow_hugetlb_page()
4451 		if (absent || is_swap_pte(huge_ptep_get(pte)) ||  in follow_hugetlb_page()
4453 		      !huge_pte_write(huge_ptep_get(pte)))) {  in follow_hugetlb_page()
4457 			if (pte)  in follow_hugetlb_page()
4497 		page = pte_page(huge_ptep_get(pte));  in follow_hugetlb_page()
4559 	pte_t pte;  in hugetlb_change_protection()  local
4591 		pte = huge_ptep_get(ptep);  in hugetlb_change_protection()
4592 		if (unlikely(is_hugetlb_entry_hwpoisoned(pte))) {  in hugetlb_change_protection()
4596 		if (unlikely(is_hugetlb_entry_migration(pte))) {  in hugetlb_change_protection()
4597 			swp_entry_t entry = pte_to_swp_entry(pte);  in hugetlb_change_protection()
4611 		if (!huge_pte_none(pte)) {  in hugetlb_change_protection()
4615 			pte = pte_mkhuge(huge_pte_modify(old_pte, newprot));  in hugetlb_change_protection()
4616 			pte = arch_make_huge_pte(pte, vma, NULL, 0);  in hugetlb_change_protection()
4617 			huge_ptep_modify_prot_commit(vma, address, ptep, old_pte, pte);  in hugetlb_change_protection()
4888 	pte_t *pte;  in huge_pmd_share()  local
4923 	pte = (pte_t *)pmd_alloc(mm, pud, addr);  in huge_pmd_share()
4925 	return pte;  in huge_pmd_share()
4982 	pte_t *pte = NULL;  in huge_pte_alloc()  local
4991 			pte = (pte_t *)pud;  in huge_pte_alloc()
4995 				pte = huge_pmd_share(mm, addr, pud);  in huge_pte_alloc()
4997 				pte = (pte_t *)pmd_alloc(mm, pud, addr);  in huge_pte_alloc()
5000 	BUG_ON(pte && pte_present(*pte) && !pte_huge(*pte));  in huge_pte_alloc()
5002 	return pte;  in huge_pte_alloc()
5073 	pte_t pte;  in follow_huge_pmd()  local
5083 	pte = huge_ptep_get((pte_t *)pmd);  in follow_huge_pmd()
5084 	if (pte_present(pte)) {  in follow_huge_pmd()
5089 		if (is_hugetlb_entry_migration(pte)) {  in follow_huge_pmd()