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authorDavid S. Miller <davem@davemloft.net>2016-02-01 18:44:07 -0800
committerDavid S. Miller <davem@davemloft.net>2016-02-01 18:44:07 -0800
commitb45efa30a626e915192a6c548cd8642379cd47cc (patch)
tree90d8b43ebceb850b0e7852d75283aebbd2abbc00 /tools/virtio/linux/compiler.h
parent7a26019fdecdb45ff784ae4e3b7e0cc9045100ca (diff)
parent34229b277480f46c1e9a19f027f30b074512e68b (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'tools/virtio/linux/compiler.h')
-rw-r--r--tools/virtio/linux/compiler.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/tools/virtio/linux/compiler.h b/tools/virtio/linux/compiler.h
new file mode 100644
index 000000000000..845960e1cbf2
--- /dev/null
+++ b/tools/virtio/linux/compiler.h
@@ -0,0 +1,9 @@
+#ifndef LINUX_COMPILER_H
+#define LINUX_COMPILER_H
+
+#define WRITE_ONCE(var, val) \
+ (*((volatile typeof(val) *)(&(var))) = (val))
+
+#define READ_ONCE(var) (*((volatile typeof(val) *)(&(var))))
+
+#endif