hashwalk_data_t
hashwalk_data_t *hwp;
hwp = mdb_alloc(sizeof (hashwalk_data_t), UM_SLEEP);
hashwalk_data_t *hwp = wsp->walk_data;
hashwalk_data_t *hwp = wsp->walk_data;
mdb_free(hwp, sizeof (hashwalk_data_t));
hashwalk_data_t *hwp = wsp->walk_data;