diff --git a/include/linux/fs.h b/include/linux/fs.h
index 4f77ec9..ca695fc 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -528,9 +528,10 @@
 #ifdef CONFIG_QUOTA
 	struct dquot		*i_dquot[MAXQUOTAS];
 #endif
-	/* These three should probably be a union */
 	struct list_head	i_devices;
-	struct pipe_inode_info	*i_pipe;
+	union {
+		struct pipe_inode_info	*i_pipe;
+	};
 	struct block_device	*i_bdev;
 	struct cdev		*i_cdev;
 	int			i_cindex;