src/hotspot/share/gc/z/zResurrection.cpp

*** 21,31 ****
   * questions.
   */
  
  #include "precompiled.hpp"
  #include "gc/z/zResurrection.hpp"
! #include "runtime/orderAccess.hpp"
  #include "runtime/safepoint.hpp"
  #include "utilities/debug.hpp"
  
  volatile bool ZResurrection::_blocked = false;
  
--- 21,31 ----
   * questions.
   */
  
  #include "precompiled.hpp"
  #include "gc/z/zResurrection.hpp"
! #include "runtime/atomic.hpp"
  #include "runtime/safepoint.hpp"
  #include "utilities/debug.hpp"
  
  volatile bool ZResurrection::_blocked = false;
  
*** 33,42 ****
    assert(SafepointSynchronize::is_at_safepoint(), "Should be at safepoint");
    _blocked = true;
  }
  
  void ZResurrection::unblock() {
!   // We use a storestore barrier to make sure all healed
!   // oops are visible before we unblock resurrection.
!   OrderAccess::storestore();
!   _blocked = false;
  }
--- 33,42 ----
    assert(SafepointSynchronize::is_at_safepoint(), "Should be at safepoint");
    _blocked = true;
  }
  
  void ZResurrection::unblock() {
!   // No need for anything stronger than a relaxed store here.
!   // The preceeding handshake makes sure that all non-strong
!   // oops have already been healed at this point.
!   Atomic::store(false, &_blocked);
  }