dmu_object_info_from_dnode
dmu_object_info_from_dnode(dn, &doi);
dmu_object_info_from_dnode(dn, doi);
dmu_object_info_from_dnode(DB_DNODE(db), doi);
void dmu_object_info_from_dnode(dnode_t *dn, dmu_object_info_t *doi);