src/hotspot/share/runtime/vmOperations.cpp

rev 59077 : 8153224.v2.09b.patch combined with 8153224.v2.10.patch; merge with jdk-15+21.

*** 1,7 ****
  /*
!  * Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
--- 1,7 ----
  /*
!  * Copyright (c) 1997, 2020, Oracle and/or its affiliates. All rights reserved.
   * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   *
   * This code is free software; you can redistribute it and/or modify it
   * under the terms of the GNU General Public License version 2 only, as
   * published by the Free Software Foundation.
*** 39,48 ****
--- 39,49 ----
  #include "runtime/arguments.hpp"
  #include "runtime/deoptimization.hpp"
  #include "runtime/frame.inline.hpp"
  #include "runtime/interfaceSupport.inline.hpp"
  #include "runtime/sweeper.hpp"
+ #include "runtime/synchronizer.hpp"
  #include "runtime/thread.inline.hpp"
  #include "runtime/threadSMR.inline.hpp"
  #include "runtime/vmOperations.hpp"
  #include "services/threadService.hpp"
  
*** 431,440 ****
--- 432,452 ----
      MonitorLocker ml(&timer, Mutex::_no_safepoint_check_flag);
      ml.wait(10);
    }
  }
  
+ bool VM_Exit::doit_prologue() {
+   if (AsyncDeflateIdleMonitors && log_is_enabled(Info, monitorinflation)) {
+     // AsyncDeflateIdleMonitors does a special deflation at the VM_Exit
+     // safepoint in order to reduce the in-use monitor population that
+     // is reported by ObjectSynchronizer::log_in_use_monitor_details()
+     // at VM exit.
+     ObjectSynchronizer::set_is_special_deflation_requested(true);
+   }
+   return true;
+ }
+ 
  void VM_Exit::doit() {
  
    if (VerifyBeforeExit) {
      HandleMark hm(VMThread::vm_thread());
      // Among other things, this ensures that Eden top is correct.