This file is indexed.

/usr/src/kernel-patches/lustre/patches/i_filter_data.patch is in linux-patch-lustre 1.8.5+dfsg-3ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

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Index: linux-2.6.18-128.1.14/include/linux/fs.h
===================================================================
--- linux-2.6.18-128.1.14.orig/include/linux/fs.h	2009-06-19 12:33:13.000000000 -0600
+++ linux-2.6.18-128.1.14/include/linux/fs.h	2009-06-19 12:33:26.000000000 -0600
@@ -580,6 +580,7 @@
 		struct cdev		*i_cdev;
 	};
 	int			i_cindex;
+	void                    *i_filterdata;
 
 	__u32			i_generation;