RBT_NFIND
ins = RBT_NFIND(tree, &root, tmp);
ins = RBT_NFIND(tree, &root, &it);
ks = RBT_NFIND(kstat_id_tree, &kstat_id_tree, &key);
ks = RBT_NFIND(kstat_pv_tree, &kstat_pv_tree, &key);
ks = RBT_NFIND(kstat_nm_tree, &kstat_nm_tree, &key);
ph = RBT_NFIND(phtree, &pp->pr_phtree, &key);
vs = RBT_NFIND(veb_pvlan_vs, &sc->sc_pvlans_vs, &key);
vp = RBT_NFIND(veb_pvlan_vp, &sc->sc_pvlans_vp, &key);
vs = RBT_NFIND(veb_pvlan_vs, &sc->sc_pvlans_vs, &key);
return (RBT_NFIND(pf_statelim_id_tree, tree, key));
return (RBT_NFIND(pf_sourcelim_id_tree, tree, key));
return (RBT_NFIND(pf_source_ioc_tree, tree, key));
r = RBT_NFIND(uvm_pmr_addr, &pmr->addr, pg);
*pg_next = RBT_NFIND(uvm_pmr_addr, &pmr->addr, pg);