int bch2_check_snapshot_trees(struct bch_fs *);
int bch2_check_snapshots(struct bch_fs *);
+
+int bch2_snapshot_node_set_deleted(struct btree_trans *, u32);
+int bch2_delete_dead_snapshots_hook(struct btree_trans *,
+ struct btree_trans_commit_hook *);
+void bch2_delete_dead_snapshots_work(struct work_struct *);
+
+int __bch2_key_has_snapshot_overwrites(struct btree_trans *, enum btree_id, struct bpos);
+
+static inline int bch2_key_has_snapshot_overwrites(struct btree_trans *trans,
+ enum btree_id id,
+ struct bpos pos)
+{
+ if (!btree_type_has_snapshots(id) ||
+ bch2_snapshot_is_leaf(trans->c, pos.snapshot))
+ return 0;
+
+ return __bch2_key_has_snapshot_overwrites(trans, id, pos);
+}
+
+int bch2_propagate_key_to_snapshot_leaves(struct btree_trans *, enum btree_id,
+ struct bkey_s_c, struct bpos *);
+
int bch2_snapshots_read(struct bch_fs *);
void bch2_fs_snapshots_exit(struct bch_fs *);