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-rw-r--r--tools/io_uring/barrier.h16
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 000000000..ef00f6722
--- /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