diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile
index 554e4a1..d3ff783 100644
--- a/fs/xfs/Makefile
+++ b/fs/xfs/Makefile
@@ -49,7 +49,7 @@
 	EXTRA_CFLAGS += -DXFS_LOG_TRACE
 	EXTRA_CFLAGS += -DXFS_RW_TRACE
 	EXTRA_CFLAGS += -DPAGEBUF_TRACE
-	# EXTRA_CFLAGS += -DXFS_VNODE_TRACE
+	EXTRA_CFLAGS += -DXFS_VNODE_TRACE
 endif
 
 obj-$(CONFIG_XFS_FS)		+= xfs.o
diff --git a/fs/xfs/linux-2.6/xfs_vnode.h b/fs/xfs/linux-2.6/xfs_vnode.h
index 7cff0f3..3b40c92 100644
--- a/fs/xfs/linux-2.6/xfs_vnode.h
+++ b/fs/xfs/linux-2.6/xfs_vnode.h
@@ -86,10 +86,11 @@
 	vnumber_t	v_number;		/* in-core vnode number */
 	vn_bhv_head_t	v_bh;			/* behavior head */
 	spinlock_t	v_lock;			/* VN_LOCK/VN_UNLOCK */
-	struct inode	v_inode;		/* Linux inode */
 #ifdef XFS_VNODE_TRACE
 	struct ktrace	*v_trace;		/* trace header structure    */
 #endif
+	struct inode	v_inode;		/* Linux inode */
+	/* inode MUST be last */
 } vnode_t;
 
 #define v_fbhv			v_bh.bh_first	       /* first behavior */