1 files changed, 8 insertions, 0 deletions

diff --git a/tools/testing/radix-tree/linux/notifier.h b/tools/testing/radix-tree/linux/notifier.h
new file mode 100644
index 000000000000..70e4797d5a46
--- /dev/null
+++ b/tools/testing/radix-tree/linux/notifier.h
@@ -0,0 +1,8 @@
+#ifndef _NOTIFIER_H
+#define _NOTIFIER_H
+
+struct notifier_block;
+
+#define NOTIFY_OK              0x0001          /* Suits me */
+
+#endif