DS_RNGBYTES
kstat_named_init(&dkp->ds_algs[DS_RNGBYTES], "rngbytes",
reqp->dr_byte_stat = DS_RNGBYTES;
atomic_add_64(&n2rng->n_stats[DS_RNGBYTES], buflen);
kstat_named_init(&dkp->ns_algs[DS_RNGBYTES], "rngbytes",