dam_kstats
struct dam_kstats *statsp;
sizeof (struct dam_kstats) / sizeof (kstat_named_t), 0);
statsp = (struct dam_kstats *)mapsp->ks_data;
struct dam_kstats *stp = (mapp)->dam_kstatsp->ks_data; \
struct dam_kstats *stp = (mapp)->dam_kstatsp->ks_data; \