static int bch2_btree_insert_node(struct btree_update *, struct btree_trans *,
				  btree_path_idx_t, struct btree *,
				  struct keylist *, unsigned)
static int bch2_btree_insert_node(struct btree_update *, struct btree_trans *,
				  btree_path_idx_t, struct btree *, struct keylist *)