diff options
Diffstat (limited to 'tools/io_uring/barrier.h')
| -rw-r--r-- | tools/io_uring/barrier.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/tools/io_uring/barrier.h b/tools/io_uring/barrier.h new file mode 100644 index 000000000000..ef00f6722ba9 --- /dev/null +++ b/tools/io_uring/barrier.h @@ -0,0 +1,16 @@ +#ifndef LIBURING_BARRIER_H +#define LIBURING_BARRIER_H + +#if defined(__x86_64) || defined(__i386__) +#define read_barrier() __asm__ __volatile__("":::"memory") +#define write_barrier() __asm__ __volatile__("":::"memory") +#else +/* + * Add arch appropriate definitions. Be safe and use full barriers for + * archs we don't have support for. + */ +#define read_barrier() __sync_synchronize() +#define write_barrier() __sync_synchronize() +#endif + +#endif |