idm_release_chunk_locked
idm_release_chunk_locked(idm, n, 1);
idm_release_chunk_locked(idm, 0, idm->used);
idm_release_chunk_locked(idm, 0, idm->total);
return idm_release_chunk_locked(idm, id, count);
idm_release_chunk_locked(idm, start, count);