src/share/vm/runtime/mutexLocker.hpp

rev 8957 : 8223147: JFR Backport
8199712: Flight Recorder
8203346: JFR: Inconsistent signature of jfr_add_string_constant
8195817: JFR.stop should require name of recording
8195818: JFR.start should increase autogenerated name by one
8195819: Remove recording=x from jcmd JFR.check output
8203921: JFR thread sampling is missing fixes from JDK-8194552
8203929: Limit amount of data for JFR.dump
8203664: JFR start failure after AppCDS archive created with JFR StartFlightRecording
8003209: JFR events for network utilization
8207392: [PPC64] Implement JFR profiling

*** 140,155 ****
  
  extern Mutex*   Management_lock;                 // a lock used to serialize JVM management
  extern Monitor* Service_lock;                    // a lock used for service thread operation
  extern Monitor* PeriodicTask_lock;               // protects the periodic task structure
  
! #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 Mutex*   JfrThreadGroups_lock;            // protects JFR access to Thread Groups
  #endif
  
  #ifndef SUPPORTS_NATIVE_CX8
  extern Mutex*   UnsafeJlong_lock;                // provides Unsafe atomic updates to jlongs on platforms that don't support cx8
  #endif
--- 140,160 ----
  
  extern Mutex*   Management_lock;                 // a lock used to serialize JVM management
  extern Monitor* Service_lock;                    // a lock used for service thread operation
  extern Monitor* PeriodicTask_lock;               // protects the periodic task structure
  
! #ifdef INCLUDE_JFR
  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 Mutex*   JfrThreadGroups_lock;            // protects JFR access to Thread Groups
+ 
+ #ifndef SUPPORTS_NATIVE_CX8
+ extern Mutex*   JfrCounters_lock;                // provides atomic updates of JFR counters
+ #endif
+ 
  #endif
  
  #ifndef SUPPORTS_NATIVE_CX8
  extern Mutex*   UnsafeJlong_lock;                // provides Unsafe atomic updates to jlongs on platforms that don't support cx8
  #endif