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authorMichael S. Tsirkin <mst@redhat.com>2016-01-20 22:12:58 +0300
committerMichael S. Tsirkin <mst@redhat.com>2016-01-26 11:18:29 +0300
commita7c490333df3cff5086ddf19a0837529304fa097 (patch)
tree4ea3f4646f10a41d6fe06de3b77eb3a1b6d6a229 /tools/virtio/linux
parent2989be09a8a9d62a785137586ad941f916e08f83 (diff)
downloadlinux-a7c490333df3cff5086ddf19a0837529304fa097.tar.xz
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>
Diffstat (limited to 'tools/virtio/linux')
-rw-r--r--tools/virtio/linux/compiler.h9
-rw-r--r--tools/virtio/linux/kernel.h1
2 files changed, 10 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
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>