int metadata_remove(const std::string &key);
void execute_metadata_remove(const std::string &key, Context *on_finish);
+ int migrate(ProgressContext &prog_ctx);
+ void execute_migrate(ProgressContext &prog_ctx, Context *on_finish);
+
+ int sparsify(size_t sparse_size, ProgressContext &prog_ctx);
+ void execute_sparsify(size_t sparse_size, ProgressContext &prog_ctx,
+ Context *on_finish);
+
int prepare_image_update(bool request_lock);
private: