3789 bool is_hugetlb_entry_migration(pte_t pte)  in is_hugetlb_entry_migration()  argument
3793 	if (huge_pte_none(pte) || pte_present(pte))  in is_hugetlb_entry_migration()
3795 	swp = pte_to_swp_entry(pte);  in is_hugetlb_entry_migration()
3802 static bool is_hugetlb_entry_hwpoisoned(pte_t pte)  in is_hugetlb_entry_hwpoisoned()  argument
3806 	if (huge_pte_none(pte) || pte_present(pte))  in is_hugetlb_entry_hwpoisoned()
3808 	swp = pte_to_swp_entry(pte);  in is_hugetlb_entry_hwpoisoned()
3933 	pte_t pte;  in __unmap_hugepage_range()  local
3973 		pte = huge_ptep_get(ptep);  in __unmap_hugepage_range()
3974 		if (huge_pte_none(pte)) {  in __unmap_hugepage_range()
3983 		if (unlikely(!pte_present(pte))) {  in __unmap_hugepage_range()
3989 		page = pte_page(pte);  in __unmap_hugepage_range()
4008 		pte = huge_ptep_get_and_clear(mm, address, ptep);  in __unmap_hugepage_range()
4010 		if (huge_pte_dirty(pte))  in __unmap_hugepage_range()
4153 	pte_t pte;  in hugetlb_cow()  local
4161 	pte = huge_ptep_get(ptep);  in hugetlb_cow()
4162 	old_page = pte_page(pte);  in hugetlb_cow()
4209 			BUG_ON(huge_pte_none(pte));  in hugetlb_cow()
4231 				   pte_same(huge_ptep_get(ptep), pte)))  in hugetlb_cow()
4267 	if (likely(ptep && pte_same(huge_ptep_get(ptep), pte))) {  in hugetlb_cow()
4905 		pte_t *pte;  in follow_hugetlb_page()  local
4926 		pte = huge_pte_offset(mm, vaddr & huge_page_mask(h),  in follow_hugetlb_page()
4928 		if (pte)  in follow_hugetlb_page()
4929 			ptl = huge_pte_lock(h, mm, pte);  in follow_hugetlb_page()
4930 		absent = !pte || huge_pte_none(huge_ptep_get(pte));  in follow_hugetlb_page()
4941 			if (pte)  in follow_hugetlb_page()
4957 		if (absent || is_swap_pte(huge_ptep_get(pte)) ||  in follow_hugetlb_page()
4959 		      !huge_pte_write(huge_ptep_get(pte)))) {  in follow_hugetlb_page()
4963 			if (pte)  in follow_hugetlb_page()
5006 		page = pte_page(huge_ptep_get(pte));  in follow_hugetlb_page()
5077 	pte_t pte;  in hugetlb_change_protection()  local
5109 		pte = huge_ptep_get(ptep);  in hugetlb_change_protection()
5110 		if (unlikely(is_hugetlb_entry_hwpoisoned(pte))) {  in hugetlb_change_protection()
5114 		if (unlikely(is_hugetlb_entry_migration(pte))) {  in hugetlb_change_protection()
5115 			swp_entry_t entry = pte_to_swp_entry(pte);  in hugetlb_change_protection()
5129 		if (!huge_pte_none(pte)) {  in hugetlb_change_protection()
5133 			pte = pte_mkhuge(huge_pte_modify(old_pte, newprot));  in hugetlb_change_protection()
5134 			pte = arch_make_huge_pte(pte, vma, NULL, 0);  in hugetlb_change_protection()
5135 			huge_ptep_modify_prot_commit(vma, address, ptep, old_pte, pte);  in hugetlb_change_protection()
5455 	pte_t *pte;  in huge_pmd_share()  local
5487 	pte = (pte_t *)pmd_alloc(mm, pud, addr);  in huge_pmd_share()
5488 	return pte;  in huge_pmd_share()
5560 	pte_t *pte = NULL;  in huge_pte_alloc()  local
5569 			pte = (pte_t *)pud;  in huge_pte_alloc()
5573 				pte = huge_pmd_share(mm, vma, addr, pud);  in huge_pte_alloc()
5575 				pte = (pte_t *)pmd_alloc(mm, pud, addr);  in huge_pte_alloc()
5578 	BUG_ON(pte && pte_present(*pte) && !pte_huge(*pte));  in huge_pte_alloc()
5580 	return pte;  in huge_pte_alloc()
5648 	pte_t *ptep, pte;  in follow_huge_pmd_pte()  local
5661 	pte = huge_ptep_get(ptep);  in follow_huge_pmd_pte()
5662 	if (pte_present(pte)) {  in follow_huge_pmd_pte()
5663 		page = pte_page(pte) +  in follow_huge_pmd_pte()
5678 		if (is_hugetlb_entry_migration(pte)) {  in follow_huge_pmd_pte()