From a7c490333df3cff5086ddf19a0837529304fa097 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Wed, 20 Jan 2016 21:12:58 +0200
Subject: tools/virtio: use virt_xxx barriers

Fix build after API changes.

Reported-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 tools/virtio/linux/compiler.h | 9 +++++++++
 tools/virtio/linux/kernel.h   | 1 +
 2 files changed, 10 insertions(+)
 create mode 100644 tools/virtio/linux/compiler.h

(limited to 'tools/virtio/linux')

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
diff --git a/tools/virtio/linux/kernel.h b/tools/virtio/linux/kernel.h
index 4db7d5691ba7..033849948215 100644
--- a/tools/virtio/linux/kernel.h
+++ b/tools/virtio/linux/kernel.h
@@ -8,6 +8,7 @@
 #include <assert.h>
 #include <stdarg.h>
 
+#include <linux/compiler.h>
 #include <linux/types.h>
 #include <linux/printk.h>
 #include <linux/bug.h>
-- 
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