+size_t bch2_journal_key_search(struct journal_keys *, enum btree_id,
+ unsigned, struct bpos);
+struct bkey_i *bch2_journal_keys_peek(struct bch_fs *, enum btree_id,
+ unsigned, struct bpos pos);
+
+int bch2_journal_key_insert_take(struct bch_fs *, enum btree_id,
+ unsigned, struct bkey_i *);
+int bch2_journal_key_insert(struct bch_fs *, enum btree_id,
+ unsigned, struct bkey_i *);
+int bch2_journal_key_delete(struct bch_fs *, enum btree_id,
+ unsigned, struct bpos);
+void bch2_journal_key_overwritten(struct bch_fs *, enum btree_id,
+ unsigned, struct bpos);
+