src/hotspot/share/gc/g1/g1ConcurrentMark.cpp

rev 56881 : imported patch 8233702-function-to-clamp-value-to-range

*** 1609,1619 ****
      // is not multi-threaded we use the current (VMThread) thread,
      // otherwise we use the work gang from the G1CollectedHeap and
      // we utilize all the worker threads we can.
      bool processing_is_mt = rp->processing_is_mt();
      uint active_workers = (processing_is_mt ? _g1h->workers()->active_workers() : 1U);
!     active_workers = MAX2(MIN2(active_workers, _max_num_tasks), 1U);
  
      // Parallel processing task executor.
      G1CMRefProcTaskExecutor par_task_executor(_g1h, this,
                                                _g1h->workers(), active_workers);
      AbstractRefProcTaskExecutor* executor = (processing_is_mt ? &par_task_executor : NULL);
--- 1609,1619 ----
      // is not multi-threaded we use the current (VMThread) thread,
      // otherwise we use the work gang from the G1CollectedHeap and
      // we utilize all the worker threads we can.
      bool processing_is_mt = rp->processing_is_mt();
      uint active_workers = (processing_is_mt ? _g1h->workers()->active_workers() : 1U);
!     active_workers = clamp(active_workers, 1u, _max_num_tasks);
  
      // Parallel processing task executor.
      G1CMRefProcTaskExecutor par_task_executor(_g1h, this,
                                                _g1h->workers(), active_workers);
      AbstractRefProcTaskExecutor* executor = (processing_is_mt ? &par_task_executor : NULL);