--- zzzz-none-000/linux-2.6.32.61/include/linux/radix-tree.h	2013-06-10 09:43:48.000000000 +0000
+++ virian-300e-630/linux-2.6.32.61/include/linux/radix-tree.h	2011-07-20 07:23:51.000000000 +0000
@@ -62,6 +62,10 @@
 	unsigned int		height;
 	gfp_t			gfp_mask;
 	struct radix_tree_node	*rnode;
+#ifdef CONFIG_FUSIV_USB_OPTIMIZATION
+        pgoff_t                 last_reclaim_index; /* to speed up reclaim */
+        unsigned int            count;
+#endif
 };
 
 #define RADIX_TREE_INIT(mask)	{					\