diff -urN linux-2.6.31-orig/include/linux/ext2_fs.h linux-2.6.31/include/linux/ext2_fs.h
--- linux-2.6.31-orig/include/linux/ext2_fs.h	2009-09-10 07:13:59 +0900
+++ linux-2.6.31/include/linux/ext2_fs.h	2009-11-10 00:16:05 +0900
@@ -18,6 +18,7 @@
 
 #include <linux/types.h>
 #include <linux/magic.h>
+#include <linux/fs.h>
 
 /*
  * The second extended filesystem constants/structures
diff -urN linux-2.6.31-orig/include/linux/ext3_fs.h linux-2.6.31/include/linux/ext3_fs.h
--- linux-2.6.31-orig/include/linux/ext3_fs.h	2009-09-10 07:13:59 +0900
+++ linux-2.6.31/include/linux/ext3_fs.h	2009-11-10 00:16:05 +0900
@@ -18,6 +18,7 @@
 
 #include <linux/types.h>
 #include <linux/magic.h>
+#include <linux/fs.h>
 
 /*
  * The second extended filesystem constants/structures