src/hotspot/share/gc/g1/g1CollectedHeap.cpp

rev 47287 : Port 09.17.Thread_SMR_logging_update from JDK9 to JDK10
rev 47289 : eosterlund, stefank CR - refactor code into threadSMR.cpp and threadSMR.hpp
rev 47292 : stefank, coleenp CR - refactor most JavaThreadIterator usage to use JavaThreadIteratorWithHandle.

*** 2628,2645 ****
    }
  }
  
  size_t G1CollectedHeap::pending_card_num() {
    size_t extra_cards = 0;
!   {
!     ThreadsListHandle tlh;
!     JavaThreadIterator jti(tlh.list());
!     for (JavaThread *curr = jti.first(); curr != NULL; curr = jti.next()) {
        DirtyCardQueue& dcq = curr->dirty_card_queue();
        extra_cards += dcq.size();
      }
-   }
    DirtyCardQueueSet& dcqs = JavaThread::dirty_card_queue_set();
    size_t buffer_size = dcqs.buffer_size();
    size_t buffer_num = dcqs.completed_buffers_num();
  
    return buffer_size * buffer_num + extra_cards;
--- 2628,2641 ----
    }
  }
  
  size_t G1CollectedHeap::pending_card_num() {
    size_t extra_cards = 0;
!   for (JavaThreadIteratorWithHandle jtiwh; JavaThread *curr = jtiwh.next(); ) {
      DirtyCardQueue& dcq = curr->dirty_card_queue();
      extra_cards += dcq.size();
    }
    DirtyCardQueueSet& dcqs = JavaThread::dirty_card_queue_set();
    size_t buffer_size = dcqs.buffer_size();
    size_t buffer_num = dcqs.completed_buffers_num();
  
    return buffer_size * buffer_num + extra_cards;