parent_rdmacg
for (p = over_cg; parent_rdmacg(p); p = parent_rdmacg(p)) {
for (p = cg; parent_rdmacg(p); p = parent_rdmacg(p)) {
for (p = cg; p != stop_cg; p = parent_rdmacg(p))
for (p = cg; p; p = parent_rdmacg(p)) {
for (p = cg; p; p = parent_rdmacg(p)) {