1  /* Avoiding the DMB (or kernel helper) can be a good thing.  */
       2  #define WANT_SPECIALCASE_RELAXED
       3  
       4  /* Glibc, at least, uses acq_rel in its pthread mutex
       5     implementation.  If the user is asking for seq_cst,
       6     this is insufficient.  */
       7  
       8  static inline void __attribute__((always_inline, artificial))
       9  pre_seq_barrier(int model)
      10  {
      11    if (model == __ATOMIC_SEQ_CST)
      12      __atomic_thread_fence (__ATOMIC_SEQ_CST);
      13  }
      14  
      15  static inline void __attribute__((always_inline, artificial))
      16  post_seq_barrier(int model)
      17  {
      18    pre_seq_barrier(model);
      19  }
      20  
      21  #define pre_post_seq_barrier 1
      22  
      23  #include_next <host-config.h>