src/hotspot/share/gc/g1/g1HotCardCache.cpp

*** 72,82 ****
    // against the unlikely event of a race resulting in another card pointer to
    // have already been written to the cache. In this case we will return
    // card_ptr in favor of the other option, which would be starting over. This
    // should be OK since card_ptr will likely be the older card already when/if
    // this ever happens.
!   jbyte* previous_ptr = (jbyte*)Atomic::cmpxchg_ptr(card_ptr,
                                                      &_hot_cache[masked_index],
                                                      current_ptr);
    return (previous_ptr == current_ptr) ? previous_ptr : card_ptr;
  }
  
--- 72,82 ----
    // against the unlikely event of a race resulting in another card pointer to
    // have already been written to the cache. In this case we will return
    // card_ptr in favor of the other option, which would be starting over. This
    // should be OK since card_ptr will likely be the older card already when/if
    // this ever happens.
!   jbyte* previous_ptr = Atomic::cmpxchg(card_ptr,
                                          &_hot_cache[masked_index],
                                          current_ptr);
    return (previous_ptr == current_ptr) ? previous_ptr : card_ptr;
  }