src/hotspot/share/gc/g1/dirtyCardQueue.cpp

rev 47400 : [mq]: cmpxchg_ptr

*** 278,288 ****
  
  void DirtyCardQueueSet::par_apply_closure_to_all_completed_buffers(CardTableEntryClosure* cl) {
    BufferNode* nd = _cur_par_buffer_node;
    while (nd != NULL) {
      BufferNode* next = nd->next();
!     void* actual = Atomic::cmpxchg_ptr(next, &_cur_par_buffer_node, nd);
      if (actual == nd) {
        bool b = apply_closure_to_buffer(cl, nd, false);
        guarantee(b, "Should not stop early.");
        nd = next;
      } else {
--- 278,288 ----
  
  void DirtyCardQueueSet::par_apply_closure_to_all_completed_buffers(CardTableEntryClosure* cl) {
    BufferNode* nd = _cur_par_buffer_node;
    while (nd != NULL) {
      BufferNode* next = nd->next();
!     void* actual = Atomic::cmpxchg(next, &_cur_par_buffer_node, nd);
      if (actual == nd) {
        bool b = apply_closure_to_buffer(cl, nd, false);
        guarantee(b, "Should not stop early.");
        nd = next;
      } else {