tools/io_uring/barrier.h

   1 #ifndef LIBURING_BARRIER_H
   2 #define LIBURING_BARRIER_H
   3
   4 #if defined(__x86_64) || defined(__i386__)
   5 #define read_barrier()  __asm__ __volatile__("":::"memory")
   6 #define write_barrier() __asm__ __volatile__("":::"memory")
   7 #else
   8 /*
   9  * Add arch appropriate definitions. Be safe and use full barriers for
  10  * archs we don't have support for.
  11  */
  12 #define read_barrier()  __sync_synchronize()
  13 #define write_barrier() __sync_synchronize()
  14 #endif
  15
  16 #endif