debugfs: prevent access to possibly dead file_operations at file open

[linux-2.6-microblaze.git] / fs / debugfs / internal.h

diff --git a/fs/debugfs/internal.h b/fs/debugfs/internal.h
new file mode 100644 (file)
index 0000000..c7aaa5c
--- /dev/null
+++ b/fs/debugfs/internal.h
@@ -0,0 +1,24 @@
+/*
+ *  internal.h - declarations internal to debugfs
+ *
+ *  Copyright (C) 2016 Nicolai Stange <nicstange@gmail.com>
+ *
+ *     This program is free software; you can redistribute it and/or
+ *     modify it under the terms of the GNU General Public License version
+ *     2 as published by the Free Software Foundation.
+ *
+ */
+
+#ifndef _DEBUGFS_INTERNAL_H_
+#define _DEBUGFS_INTERNAL_H_
+
+struct file_operations;
+struct srcu_struct;
+
+/* declared over in file.c */
+extern const struct file_operations debugfs_noop_file_operations;
+extern const struct file_operations debugfs_open_proxy_file_operations;
+
+extern struct srcu_struct debugfs_srcu;
+
+#endif /* _DEBUGFS_INTERNAL_H_ */