94 	 * As movable pages are not isolated from LRU lists, concurrent  in isolate_movable_page()
98 	 * In order to avoid having an already isolated movable page  in isolate_movable_page()
99 	 * being (wrongly) re-isolated while it is under migration,  in isolate_movable_page()
140  * Put previously isolated pages back onto the appropriate lists
143  * This function shall be used whenever the isolated pageset has been
159 		 * We isolated non-lru movable folio so here we can use  in putback_movable_pages()
1298 	 * isolated from the unevictable LRU: but this case is the easiest.  in migrate_folio_move()
2073  *     errno - if the page cannot be found/isolated
2135 	 * or drop the folio ref if it was not isolated.  in add_page_for_migration()
2559 	int isolated;  in migrate_misplaced_folio()  local
2583 	isolated = numamigrate_isolate_folio(pgdat, folio);  in migrate_misplaced_folio()
2584 	if (!isolated)  in migrate_misplaced_folio()
2598 		isolated = 0;  in migrate_misplaced_folio()
2607 	return isolated;  in migrate_misplaced_folio()