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src/share/vm/gc_implementation/g1/vm_operations_g1.cpp

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rev 7780 : imported patch 8072621
rev 7781 : imported patch 8066771
rev 7782 : [mq]: review

@@ -36,11 +36,11 @@
 
 VM_G1CollectForAllocation::VM_G1CollectForAllocation(uint gc_count_before,
                                                      size_t word_size)
   : VM_G1OperationWithAllocRequest(gc_count_before, word_size,
                                    GCCause::_allocation_failure) {
-  guarantee(word_size > 0, "an allocation should always be requested");
+  guarantee(word_size != 0, "An allocation should always be requested with this operation.");
 }
 
 void VM_G1CollectForAllocation::doit() {
   G1CollectedHeap* g1h = G1CollectedHeap::heap();
   GCCauseSetter x(g1h, _gc_cause);

@@ -71,11 +71,11 @@
                     target_pause_time_ms));
   _gc_cause = gc_cause;
 }
 
 bool VM_G1IncCollectionPause::doit_prologue() {
-  bool res = VM_GC_Operation::doit_prologue();
+  bool res = VM_G1OperationWithAllocRequest::doit_prologue();
   if (!res) {
     if (_should_initiate_conc_mark) {
       // The prologue can fail for a couple of reasons. The first is that another GC
       // got scheduled and prevented the scheduling of the initial mark GC. The
       // second is that the GC locker may be active and the heap can't be expanded.

@@ -161,11 +161,11 @@
     }
   }
 }
 
 void VM_G1IncCollectionPause::doit_epilogue() {
-  VM_GC_Operation::doit_epilogue();
+  VM_G1OperationWithAllocRequest::doit_epilogue();
 
   // If the pause was initiated by a System.gc() and
   // +ExplicitGCInvokesConcurrent, we have to wait here for the cycle
   // that just started (or maybe one that was already in progress) to
   // finish.
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