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

rev 49670 : imported patch 8178105-switch-at-remark
rev 49671 : imported patch 8178105-stefanj-review
rev 49672 : imported patch 8178105-stefanj-review2
rev 49674 : imported patch 8154528-reclaim-at-remark
rev 49675 : imported patch 8154528-stefanj-review
rev 49678 : imported patch 8200426-sangheon-review
rev 49679 : imported patch 8200730-timing-in-remark-cleanup
rev 49683 : imported patch 8201172-parallelize-remark-phase
rev 49684 : imported patch 8201172-stefanj-review
rev 49686 : imported patch 8201490-improve-conc-mark-keepalive
rev 49688 : [mq]: 8201527-default-refprocdraininterval

@@ -1409,18 +1409,17 @@
 // operating on the global stack.
 
 class G1CMKeepAliveAndDrainClosure : public OopClosure {
   G1ConcurrentMark* _cm;
   G1CMTask*         _task;
-  int               _ref_counter_limit;
-  int               _ref_counter;
+  uint              _ref_counter_limit;
+  uint              _ref_counter;
   bool              _is_serial;
 public:
   G1CMKeepAliveAndDrainClosure(G1ConcurrentMark* cm, G1CMTask* task, bool is_serial) :
     _cm(cm), _task(task), _is_serial(is_serial),
     _ref_counter_limit(G1RefProcDrainInterval) {
-    assert(_ref_counter_limit > 0, "sanity");
     assert(!_is_serial || _task->worker_id() == 0, "only task 0 for serial code");
     _ref_counter = _ref_counter_limit;
   }
 
   virtual void do_oop(narrowOop* p) { do_oop_work(p); }