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diff src/share/vm/runtime/mutexLocker.hpp @ 12106:739c309fd729

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8023457: Event based tracing framework needs a mutex for thread groups Reviewed-by: acorn, sla
author mgronlun
date Fri, 23 Aug 2013 10:36:34 +0200
parents 6337ca4dcad8
children b2e698d2276c e2722a66aba7
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--- a/src/share/vm/runtime/mutexLocker.hpp	Thu Aug 22 21:23:31 2013 -0700
+++ b/src/share/vm/runtime/mutexLocker.hpp	Fri Aug 23 10:36:34 2013 +0200
@@ -137,13 +137,15 @@
 
 extern Mutex*   Management_lock;                 // a lock used to serialize JVM management
 extern Monitor* Service_lock;                    // a lock used for service thread operation
-extern Mutex*   Stacktrace_lock;                 // used to guard access to the stacktrace table
+extern Monitor* PeriodicTask_lock;               // protects the periodic task structure
 
-extern Monitor* JfrQuery_lock;                   // protects JFR use
+#ifdef INCLUDE_TRACE
+extern Mutex*   JfrStacktrace_lock;              // used to guard access to the JFR stacktrace table
 extern Monitor* JfrMsg_lock;                     // protects JFR messaging
 extern Mutex*   JfrBuffer_lock;                  // protects JFR buffer operations
 extern Mutex*   JfrStream_lock;                  // protects JFR stream access
-extern Monitor* PeriodicTask_lock;               // protects the periodic task structure
+extern Mutex*   JfrThreadGroups_lock;            // protects JFR access to Thread Groups
+#endif
 
 // A MutexLocker provides mutual exclusion with respect to a given mutex
 // for the scope which contains the locker.  The lock is an OS lock, not