- case MVAR:
- {
- StgMVar *mvar = ((StgMVar *)p);
- evac_gen = 0;
- mvar->head = (StgTSO *)evacuate((StgClosure *)mvar->head);
- mvar->tail = (StgTSO *)evacuate((StgClosure *)mvar->tail);
- mvar->value = evacuate((StgClosure *)mvar->value);
- evac_gen = saved_evac_gen;
- failed_to_evac = rtsTrue; // mutable.
- break;
- }
+ case MVAR_CLEAN:
+ case MVAR_DIRTY:
+ {
+ rtsBool saved_eager_promotion = eager_promotion;
+
+ StgMVar *mvar = ((StgMVar *)p);
+ eager_promotion = rtsFalse;
+ mvar->head = (StgTSO *)evacuate((StgClosure *)mvar->head);
+ mvar->tail = (StgTSO *)evacuate((StgClosure *)mvar->tail);
+ mvar->value = evacuate((StgClosure *)mvar->value);
+ eager_promotion = saved_eager_promotion;
+
+ if (failed_to_evac) {
+ mvar->header.info = &stg_MVAR_DIRTY_info;
+ } else {
+ mvar->header.info = &stg_MVAR_CLEAN_info;
+ }
+ break;
+ }