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diff src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp @ 517:e9be0e04635a

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6689653: JMapPerm fails with UseConcMarkSweepIncGC and compressed oops off Summary: Added safe_object_iterate() for use by JMapPerm. Reviewed-by: tonyp
author jmasa
date Tue, 06 Jan 2009 07:05:05 -0800
parents 27a80744a83b
children 0af8b0718fc9
line wrap: on
line diff
--- a/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp	Sat Dec 20 00:45:18 2008 -0800
+++ b/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.cpp	Tue Jan 06 07:05:05 2009 -0800
@@ -3018,6 +3018,16 @@
 }
 
 void
+ConcurrentMarkSweepGeneration::safe_object_iterate(ObjectClosure* cl) {
+  if (freelistLock()->owned_by_self()) {
+    Generation::safe_object_iterate(cl);
+  } else {
+    MutexLockerEx x(freelistLock(), Mutex::_no_safepoint_check_flag);
+    Generation::safe_object_iterate(cl);
+  }
+}
+
+void
 ConcurrentMarkSweepGeneration::pre_adjust_pointers() {
 }
 
@@ -7001,7 +7011,6 @@
       _mut->clear_range(mr);
     }
   DEBUG_ONLY(})
-
   // Note: the finger doesn't advance while we drain
   // the stack below.
   PushOrMarkClosure pushOrMarkClosure(_collector,