--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/*
+ * Copyright 1996, 1997, 1998 Hans Reiser, see reiserfs/README for licensing and copyright details
+ */
+#ifndef _LINUX_REISER_FS_H
+#define _LINUX_REISER_FS_H
+
+#include <linux/types.h>
+#include <linux/magic.h>
+
+/*
+ * include/linux/reiser_fs.h
+ *
+ * Reiser File System constants and structures
+ *
+ */
+
+/* ioctl's command */
+#define REISERFS_IOC_UNPACK _IOW(0xCD,1,long)
+/* define following flags to be the same as in ext2, so that chattr(1),
+ lsattr(1) will work with us. */
+#define REISERFS_IOC_GETFLAGS FS_IOC_GETFLAGS
+#define REISERFS_IOC_SETFLAGS FS_IOC_SETFLAGS
+#define REISERFS_IOC_GETVERSION FS_IOC_GETVERSION
+#define REISERFS_IOC_SETVERSION FS_IOC_SETVERSION
+
+#endif /* _LINUX_REISER_FS_H */