DROP_REFERENCE
((wc->stage == DROP_REFERENCE && wc->refs[level] != 1) ||
if (wc->stage == DROP_REFERENCE) {
if (wc->stage == DROP_REFERENCE && wc->refs[level - 1] > 1) {
wc->stage = DROP_REFERENCE;
wc->stage = DROP_REFERENCE;
BUG_ON(wc->stage != DROP_REFERENCE);
if (wc->stage == DROP_REFERENCE) {
wc->stage = DROP_REFERENCE;