507 		pte_t pteval = ptep_get(_pte);  in release_pte_pages()  local
510 		if (pte_none(pteval))  in release_pte_pages()
512 		pfn = pte_pfn(pteval);  in release_pte_pages()
551 		pte_t pteval = ptep_get(_pte);  in __collapse_huge_page_isolate()  local
552 		if (pte_none(pteval) || (pte_present(pteval) &&  in __collapse_huge_page_isolate()
553 				is_zero_pfn(pte_pfn(pteval)))) {  in __collapse_huge_page_isolate()
565 		if (!pte_present(pteval)) {  in __collapse_huge_page_isolate()
569 		if (pte_uffd_wp(pteval)) {  in __collapse_huge_page_isolate()
573 		page = vm_normal_page(vma, address, pteval);  in __collapse_huge_page_isolate()
656 		    (pte_young(pteval) || page_is_young(page) ||  in __collapse_huge_page_isolate()
661 		if (pte_write(pteval))  in __collapse_huge_page_isolate()
691 	pte_t pteval;  in __collapse_huge_page_copy_succeeded()  local
695 		pteval = ptep_get(_pte);  in __collapse_huge_page_copy_succeeded()
696 		if (pte_none(pteval) || is_zero_pfn(pte_pfn(pteval))) {  in __collapse_huge_page_copy_succeeded()
698 			if (is_zero_pfn(pte_pfn(pteval))) {  in __collapse_huge_page_copy_succeeded()
705 				ksm_might_unmap_zero_page(vma->vm_mm, pteval);  in __collapse_huge_page_copy_succeeded()
708 			src_page = pte_page(pteval);  in __collapse_huge_page_copy_succeeded()
785 	pte_t pteval;  in __collapse_huge_page_copy()  local
794 		pteval = ptep_get(_pte);  in __collapse_huge_page_copy()
795 		if (pte_none(pteval) || is_zero_pfn(pte_pfn(pteval))) {  in __collapse_huge_page_copy()
799 		src_page = pte_page(pteval);  in __collapse_huge_page_copy()
1271 		pte_t pteval = ptep_get(_pte);  in hpage_collapse_scan_pmd()  local
1272 		if (is_swap_pte(pteval)) {  in hpage_collapse_scan_pmd()
1281 				if (pte_swp_uffd_wp_any(pteval)) {  in hpage_collapse_scan_pmd()
1292 		if (pte_none(pteval) || is_zero_pfn(pte_pfn(pteval))) {  in hpage_collapse_scan_pmd()
1304 		if (pte_uffd_wp(pteval)) {  in hpage_collapse_scan_pmd()
1317 		if (pte_write(pteval))  in hpage_collapse_scan_pmd()
1320 		page = vm_normal_page(vma, _address, pteval);  in hpage_collapse_scan_pmd()
1383 		    (pte_young(pteval) || page_is_young(page) ||  in hpage_collapse_scan_pmd()