diff -r cc19612c6b9f -r 91935236600e hotspot/src/share/vm/runtime/vmThread.cpp
--- a/hotspot/src/share/vm/runtime/vmThread.cpp	Mon Oct 10 21:01:36 2011 -0400
+++ b/hotspot/src/share/vm/runtime/vmThread.cpp	Thu Oct 13 09:35:42 2011 -0700
@@ -50,9 +50,11 @@
 # include "thread_bsd.inline.hpp"
 #endif
 
+#ifndef USDT2
 HS_DTRACE_PROBE_DECL3(hotspot, vmops__request, char *, uintptr_t, int);
 HS_DTRACE_PROBE_DECL3(hotspot, vmops__begin, char *, uintptr_t, int);
 HS_DTRACE_PROBE_DECL3(hotspot, vmops__end, char *, uintptr_t, int);
+#endif /* !USDT2 */
 
 // Dummy VM operation to act as first element in our circular double-linked list
 class VM_Dummy: public VM_Operation {
@@ -162,8 +164,14 @@
 // High-level interface
 bool VMOperationQueue::add(VM_Operation *op) {
 
+#ifndef USDT2
   HS_DTRACE_PROBE3(hotspot, vmops__request, op->name(), strlen(op->name()),
                    op->evaluation_mode());
+#else /* USDT2 */
+  HOTSPOT_VMOPS_REQUEST(
+                   (char *) op->name(), strlen(op->name()),
+                   op->evaluation_mode());
+#endif /* USDT2 */
 
   // Encapsulates VM queue policy. Currently, that
   // only involves putting them on the right list
@@ -360,11 +368,23 @@
 
   {
     PerfTraceTime vm_op_timer(perf_accumulated_vm_operation_time());
+#ifndef USDT2
     HS_DTRACE_PROBE3(hotspot, vmops__begin, op->name(), strlen(op->name()),
                      op->evaluation_mode());
+#else /* USDT2 */
+    HOTSPOT_VMOPS_BEGIN(
+                     (char *) op->name(), strlen(op->name()),
+                     op->evaluation_mode());
+#endif /* USDT2 */
     op->evaluate();
+#ifndef USDT2
     HS_DTRACE_PROBE3(hotspot, vmops__end, op->name(), strlen(op->name()),
                      op->evaluation_mode());
+#else /* USDT2 */
+    HOTSPOT_VMOPS_END(
+                     (char *) op->name(), strlen(op->name()),
+                     op->evaluation_mode());
+#endif /* USDT2 */
   }
 
   // Last access of info in _cur_vm_operation!