int tgt_server_data_init(const struct lu_env *env, struct lu_target *tgt);
int tgt_txn_start_cb(const struct lu_env *env, struct thandle *th,
void *cookie);
int tgt_server_data_init(const struct lu_env *env, struct lu_target *tgt);
int tgt_txn_start_cb(const struct lu_env *env, struct thandle *th,
void *cookie);