src/share/vm/gc/shared/collectedHeap.hpp

rev 13387 : [mq]: parallel_sp_cleaning.patch

@@ -599,35 +599,10 @@
   virtual void verify(VerifyOption option) = 0;
 
   // Accumulate additional statistics from GCLABs.
   virtual void accumulate_statistics_all_gclabs();
 
-  // Return true if GC supports per-thread monitor deflation.
-  // In this case, idle monitors will not get deflated when entering
-  // a safepoint, but instead will get deflated when the GC
-  // calls into Thread::oops_do() or Thread::possibly_parallel_oops_do().
-  // This allows for better parallelization and cache behaviour.
-  //
-  // NOTICE that monitor deflation requires the mark words to be intact,
-  // which means that this can only be supported by GCs that don't stow
-  // away the mark word in order to temporarily store a forwarding pointer
-  // to it.
-  virtual bool supports_per_thread_monitor_deflation() const {
-    return false;
-  }
-
-  // This is called by ObjectSynchronizer::deflate_idle_monitors() when
-  // the above supports_per_thread_monitor_deflation() returns false,
-  // or on special non-GC cleanup safepoints (even if the above returns true).
-  // It gives the GC a chance to deflate idle monitors using its GC worker
-  // threads, and thus support parallelization of monitor deflation.
-  // The default implementation simply deflates idle monitors single-threaded,
-  // using the calling (VM) thread.
-  virtual void deflate_idle_monitors_all_threads();
-
-  void parallel_deflate_idle_monitors(WorkGang* workers);
-
   // Non product verification and debugging.
 #ifndef PRODUCT
   // Support for PromotionFailureALot.  Return true if it's time to cause a
   // promotion failure.  The no-argument version uses
   // this->_promotion_failure_alot_count as the counter.