dmu_objset_space
dmu_objset_space(os, &refdbytes, &scratch, &usedobjs, &scratch);
dmu_objset_space(zd->zd_os, &scratch, &scratch, &usedobjs, &scratch);
void dmu_objset_space(objset_t *os, uint64_t *refdbytesp, uint64_t *availbytesp,
void dmu_objset_space(objset_t *os, uint64_t *refdbytesp, uint64_t *availbytesp,
dmu_objset_space(zfsvfs->z_os,
dmu_objset_space(os, &refd, &avail, &usedobjs, &availobjs);