diff --git a/fs/nilfs2/mdt.h b/fs/nilfs2/mdt.h
index ed68563..baea036 100644
--- a/fs/nilfs2/mdt.h
+++ b/fs/nilfs2/mdt.h
@@ -64,11 +64,6 @@
 	return inode->i_private;
 }
 
-static inline struct the_nilfs *NILFS_I_NILFS(struct inode *inode)
-{
-	return inode->i_sb->s_fs_info;
-}
-
 /* Default GFP flags using highmem */
 #define NILFS_MDT_GFP      (__GFP_WAIT | __GFP_IO | __GFP_HIGHMEM)
 
@@ -108,7 +103,7 @@
 
 static inline __u64 nilfs_mdt_cno(struct inode *inode)
 {
-	return NILFS_I_NILFS(inode)->ns_cno;
+	return ((struct the_nilfs *)inode->i_sb->s_fs_info)->ns_cno;
 }
 
 #define nilfs_mdt_bgl_lock(inode, bg) \