84       UpVal *uv = gco2uv(o);  in reallymarkobject()  local
85       markvalue(g, uv->v);  in reallymarkobject()
86       if (uv->v == &uv->u.value)  /* closed? */  in reallymarkobject()
454     g->tmudata->gch.next = udata->uv.next;  in GCTM()
455   udata->uv.next = g->mainthread->next;  /* return it to `root' list */  in GCTM()
458   tm = fasttm(L, udata->uv.metatable, TM_GC);  in GCTM()
516   UpVal *uv;  in remarkupvals()  local
517   for (uv = g->uvhead.u.l.next; uv != &g->uvhead; uv = uv->u.l.next) {  in remarkupvals()
518     lua_assert(uv->u.l.next->u.l.prev == uv && uv->u.l.prev->u.l.next == uv);  in remarkupvals()
519     if (isgray(obj2gco(uv)))  in remarkupvals()
520       markvalue(g, uv->v);  in remarkupvals()
694 void luaC_linkupval (lua_State *L, UpVal *uv) {  in luaC_linkupval()  argument
696   GCObject *o = obj2gco(uv);  in luaC_linkupval()
702       luaC_barrier(L, uv, uv->v);  in luaC_linkupval()