diff -r cc19612c6b9f -r 91935236600e hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/vmCMSOperations.cpp
--- a/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/vmCMSOperations.cpp	Mon Oct 10 21:01:36 2011 -0400
+++ b/hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/vmCMSOperations.cpp	Thu Oct 13 09:35:42 2011 -0700
@@ -30,11 +30,15 @@
 #include "memory/gcLocker.inline.hpp"
 #include "runtime/interfaceSupport.hpp"
 #include "utilities/dtrace.hpp"
+
+
+#ifndef USDT2
 HS_DTRACE_PROBE_DECL(hs_private, cms__initmark__begin);
 HS_DTRACE_PROBE_DECL(hs_private, cms__initmark__end);
 
 HS_DTRACE_PROBE_DECL(hs_private, cms__remark__begin);
 HS_DTRACE_PROBE_DECL(hs_private, cms__remark__end);
+#endif /* !USDT2 */
 
 //////////////////////////////////////////////////////////
 // Methods in abstract class VM_CMS_Operation
@@ -129,7 +133,12 @@
     // Nothing to do.
     return;
   }
+#ifndef USDT2
   HS_DTRACE_PROBE(hs_private, cms__initmark__begin);
+#else /* USDT2 */
+  HS_PRIVATE_CMS_INITMARK_BEGIN(
+                                );
+#endif /* USDT2 */
 
   GenCollectedHeap* gch = GenCollectedHeap::heap();
   GCCauseSetter gccs(gch, GCCause::_cms_initial_mark);
@@ -140,7 +149,12 @@
   _collector->do_CMS_operation(CMSCollector::CMS_op_checkpointRootsInitial);
 
   VM_CMS_Operation::verify_after_gc();
+#ifndef USDT2
   HS_DTRACE_PROBE(hs_private, cms__initmark__end);
+#else /* USDT2 */
+  HS_PRIVATE_CMS_INITMARK_END(
+                                );
+#endif /* USDT2 */
 }
 
 //////////////////////////////////////////////////////////
@@ -151,7 +165,12 @@
     // Nothing to do.
     return;
   }
+#ifndef USDT2
   HS_DTRACE_PROBE(hs_private, cms__remark__begin);
+#else /* USDT2 */
+  HS_PRIVATE_CMS_REMARK_BEGIN(
+                                );
+#endif /* USDT2 */
 
   GenCollectedHeap* gch = GenCollectedHeap::heap();
   GCCauseSetter gccs(gch, GCCause::_cms_final_remark);
@@ -162,7 +181,12 @@
   _collector->do_CMS_operation(CMSCollector::CMS_op_checkpointRootsFinal);
 
   VM_CMS_Operation::verify_after_gc();
+#ifndef USDT2
   HS_DTRACE_PROBE(hs_private, cms__remark__end);
+#else /* USDT2 */
+  HS_PRIVATE_CMS_REMARK_END(
+                                );
+#endif /* USDT2 */
 }
 
 // VM operation to invoke a concurrent collection of a