1116 			     struct ulist *roots, const u64 *extent_item_pos,  argument
1266 		if (roots && ref->count && ref->root_id && ref->parent == 0) {
1274 			ret = ulist_add(roots, ref->root_id, 0, GFP_NOFS);
1401 				     u64 time_seq, struct ulist **roots,  argument
1412 	*roots = ulist_alloc(GFP_NOFS);
1413 	if (!*roots) {
1421 					tmp, *roots, NULL, NULL, ignore_offset);
1424 			ulist_free(*roots);
1440 			 u64 time_seq, struct ulist **roots,  argument
1448 					time_seq, roots, ignore_offset);
1469 		struct ulist *roots, struct ulist *tmp)  argument
1483 	ulist_init(roots);
1501 					roots, NULL, &shared, false);
1525 	ulist_release(roots);
1903 	struct ulist *roots = NULL;  local
1937 						tree_mod_seq_elem.seq, &roots,
1942 		while (!ret && (root_node = ulist_next(roots, &root_uiter))) {
1954 		ulist_free(roots);