src/share/vm/runtime/thread.cpp

rev 13142 : 8183198: Factor out thread state serialization into a proper helper function
Reviewed-by:

*** 2395,2414 ****
      // after restoring the state and make sure we won't leave while a safepoint
      // is in progress.
      thread->set_thread_state(_thread_blocked);
      thread->java_suspend_self();
      thread->set_thread_state(state);
!     // Make sure new state is seen by VM thread
!     if (os::is_MP()) {
!       if (UseMembar) {
!         // Force a fence between the write above and read below
!         OrderAccess::fence();
!       } else {
!         // Must use this rather than serialization page in particular on Windows
!         InterfaceSupport::serialize_memory(thread);
!       }
!     }
    }
  
    if (SafepointSynchronize::do_call_back()) {
      // If we are safepointing, then block the caller which may not be
      // the same as the target thread (see above).
--- 2395,2406 ----
      // after restoring the state and make sure we won't leave while a safepoint
      // is in progress.
      thread->set_thread_state(_thread_blocked);
      thread->java_suspend_self();
      thread->set_thread_state(state);
! 
!     InterfaceSupport::serialize_thread_state_with_handler(thread);
    }
  
    if (SafepointSynchronize::do_call_back()) {
      // If we are safepointing, then block the caller which may not be
      // the same as the target thread (see above).