src/hotspot/share/gc/z/zMarkTerminate.inline.hpp

*** 31,45 ****
      _nworkers(0),
      _nworking_stage0(0),
      _nworking_stage1(0) {}
  
  inline bool ZMarkTerminate::enter_stage(volatile uint* nworking_stage) {
!   return Atomic::sub(1u, nworking_stage) == 0;
  }
  
  inline void ZMarkTerminate::exit_stage(volatile uint* nworking_stage) {
!   Atomic::add(1u, nworking_stage);
  }
  
  inline bool ZMarkTerminate::try_exit_stage(volatile uint* nworking_stage) {
    uint nworking = Atomic::load(nworking_stage);
  
--- 31,45 ----
      _nworkers(0),
      _nworking_stage0(0),
      _nworking_stage1(0) {}
  
  inline bool ZMarkTerminate::enter_stage(volatile uint* nworking_stage) {
!   return Atomic::sub(nworking_stage, 1u) == 0;
  }
  
  inline void ZMarkTerminate::exit_stage(volatile uint* nworking_stage) {
!   Atomic::add(nworking_stage, 1u);
  }
  
  inline bool ZMarkTerminate::try_exit_stage(volatile uint* nworking_stage) {
    uint nworking = Atomic::load(nworking_stage);
  
*** 47,57 ****
      if (nworking == 0) {
        return false;
      }
  
      const uint new_nworking = nworking + 1;
!     const uint prev_nworking = Atomic::cmpxchg(new_nworking, nworking_stage, nworking);
      if (prev_nworking == nworking) {
        // Success
        return true;
      }
  
--- 47,57 ----
      if (nworking == 0) {
        return false;
      }
  
      const uint new_nworking = nworking + 1;
!     const uint prev_nworking = Atomic::cmpxchg(nworking_stage, nworking, new_nworking);
      if (prev_nworking == nworking) {
        // Success
        return true;
      }