1169 			     struct ulist *roots, const u64 *extent_item_pos,  argument
1316 		if (roots && ref->count && ref->root_id && ref->parent == 0) {
1324 			ret = ulist_add(roots, ref->root_id, 0, GFP_NOFS);
1451 				     u64 time_seq, struct ulist **roots,  argument
1462 	*roots = ulist_alloc(GFP_NOFS);
1463 	if (!*roots) {
1471 					tmp, *roots, NULL, NULL, ignore_offset);
1474 			ulist_free(*roots);
1475 			*roots = NULL;
1491 			 u64 time_seq, struct ulist **roots,  argument
1499 					time_seq, roots, ignore_offset);
1520 		struct ulist *roots, struct ulist *tmp)  argument
1534 	ulist_init(roots);
1552 					roots, NULL, &shared, false);
1576 	ulist_release(roots);
1954 	struct ulist *roots = NULL;  local
1988 						tree_mod_seq_elem.seq, &roots,
1993 		while (!ret && (root_node = ulist_next(roots, &root_uiter))) {
2005 		ulist_free(roots);