src/hotspot/share/utilities/globalCounter.cpp

*** 39,49 ****
    CounterThreadCheck(uintx gbl_cnt) : _gbl_cnt(gbl_cnt) {}
    void do_thread(Thread* thread) {
      SpinYield yield;
      // Loops on this thread until it has exited the critical read section.
      while(true) {
!       uintx cnt = OrderAccess::load_acquire(thread->get_rcu_counter());
        // This checks if the thread's counter is active. And if so is the counter
        // for a pre-existing reader (belongs to this grace period). A pre-existing
        // reader will have a lower counter than the global counter version for this
        // generation. If the counter is larger than the global counter version this
        //  is a new reader and we can continue.
--- 39,49 ----
    CounterThreadCheck(uintx gbl_cnt) : _gbl_cnt(gbl_cnt) {}
    void do_thread(Thread* thread) {
      SpinYield yield;
      // Loops on this thread until it has exited the critical read section.
      while(true) {
!       uintx cnt = Atomic::load_acquire(thread->get_rcu_counter());
        // This checks if the thread's counter is active. And if so is the counter
        // for a pre-existing reader (belongs to this grace period). A pre-existing
        // reader will have a lower counter than the global counter version for this
        // generation. If the counter is larger than the global counter version this
        //  is a new reader and we can continue.