1643 	XA_STATE_ORDER(xas, &mapping->i_pages, start, HPAGE_PMD_ORDER);  in collapse_file()
1667 		xas_lock_irq(&xas);  in collapse_file()
1668 		xas_create_range(&xas);  in collapse_file()
1669 		if (!xas_error(&xas))  in collapse_file()
1671 		xas_unlock_irq(&xas);  in collapse_file()
1672 		if (!xas_nomem(&xas, GFP_KERNEL)) {  in collapse_file()
1690 	xas_set(&xas, start);  in collapse_file()
1692 		struct page *page = xas_next(&xas);  in collapse_file()
1694 		VM_BUG_ON(index != xas.xa_index);  in collapse_file()
1703 					if (!xas_next_entry(&xas, end - 1)) {  in collapse_file()
1707 					xas_set(&xas, index);  in collapse_file()
1713 				xas_store(&xas, new_page);  in collapse_file()
1719 				xas_unlock_irq(&xas);  in collapse_file()
1728 				xas_unlock_irq(&xas);  in collapse_file()
1735 				xas_unlock_irq(&xas);  in collapse_file()
1760 				xas_unlock_irq(&xas);  in collapse_file()
1765 				xas_unlock_irq(&xas);  in collapse_file()
1770 				xas_unlock_irq(&xas);  in collapse_file()
1829 		xas_lock_irq(&xas);  in collapse_file()
1830 		xas_set(&xas, index);  in collapse_file()
1832 		VM_BUG_ON_PAGE(page != xas_load(&xas), page);  in collapse_file()
1843 			xas_unlock_irq(&xas);  in collapse_file()
1855 		xas_store(&xas, new_page);  in collapse_file()
1877 	xas_unlock_irq(&xas);  in collapse_file()
1926 		xas_lock_irq(&xas);  in collapse_file()
1932 		xas_set(&xas, start);  in collapse_file()
1933 		xas_for_each(&xas, page, end - 1) {  in collapse_file()
1936 			if (!page || xas.xa_index < page->index) {  in collapse_file()
1941 				xas_store(&xas, NULL);  in collapse_file()
1945 			VM_BUG_ON_PAGE(page->index != xas.xa_index, page);  in collapse_file()
1950 			xas_store(&xas, page);  in collapse_file()
1951 			xas_pause(&xas);  in collapse_file()
1952 			xas_unlock_irq(&xas);  in collapse_file()
1955 			xas_lock_irq(&xas);  in collapse_file()
1958 		xas_unlock_irq(&xas);  in collapse_file()
1976 	XA_STATE(xas, &mapping->i_pages, start);  in khugepaged_scan_file()
1985 	xas_for_each(&xas, page, start + HPAGE_PMD_NR - 1) {  in khugepaged_scan_file()
1986 		if (xas_retry(&xas, page))  in khugepaged_scan_file()
2029 			xas_pause(&xas);  in khugepaged_scan_file()