src/share/vm/runtime/thread.hpp

@@ -264,10 +264,11 @@
   friend class GC_locker;
 
   ThreadLocalAllocBuffer _tlab;                 // Thread-local eden
   jlong _allocated_bytes;                       // Cumulative number of bytes allocated on
                                                 // the Java heap
+  uint _gc_id;                                  // The current GC id when a thread takes part in GC
 
   TRACE_DATA _trace_data;                       // Thread-local data for tracing
 
   ThreadExt _ext;
 

@@ -423,10 +424,13 @@
   jlong allocated_bytes()               { return _allocated_bytes; }
   void set_allocated_bytes(jlong value) { _allocated_bytes = value; }
   void incr_allocated_bytes(jlong size) { _allocated_bytes += size; }
   inline jlong cooked_allocated_bytes();
 
+  void set_gc_id(uint gc_id) { _gc_id = gc_id; }
+  uint gc_id() { return _gc_id; }
+
   TRACE_DATA* trace_data()              { return &_trace_data; }
 
   const ThreadExt& ext() const          { return _ext; }
   ThreadExt& ext()                      { return _ext; }