diff --git a/sys/fs/unionfs/union.h b/sys/fs/unionfs/union.h
--- a/sys/fs/unionfs/union.h
+++ b/sys/fs/unionfs/union.h
@@ -130,9 +130,8 @@
 int	unionfs_init(struct vfsconf *);
 int	unionfs_uninit(struct vfsconf *);
 int	unionfs_nodeget(struct mount *, struct vnode *, struct vnode *,
-	    struct vnode *, struct vnode **, struct componentname *,
-	    struct thread *);
-void	unionfs_noderem(struct vnode *, struct thread *);
+	    struct vnode *, struct vnode **, struct componentname *);
+void	unionfs_noderem(struct vnode *);
 void	unionfs_get_node_status(struct unionfs_node *, struct thread *,
 	    struct unionfs_node_status **);
 void	unionfs_tryrem_node_status(struct unionfs_node *,
diff --git a/sys/fs/unionfs/union_subr.c b/sys/fs/unionfs/union_subr.c
--- a/sys/fs/unionfs/union_subr.c
+++ b/sys/fs/unionfs/union_subr.c
@@ -299,7 +299,7 @@
 int
 unionfs_nodeget(struct mount *mp, struct vnode *uppervp,
     struct vnode *lowervp, struct vnode *dvp, struct vnode **vpp,
-    struct componentname *cnp, struct thread *td)
+    struct componentname *cnp)
 {
 	char	       *path;
 	struct unionfs_mount *ump;
@@ -426,7 +426,7 @@
  * Clean up the unionfs node.
  */
 void
-unionfs_noderem(struct vnode *vp, struct thread *td)
+unionfs_noderem(struct vnode *vp)
 {
 	struct unionfs_node *unp, *unp_t1, *unp_t2;
 	struct unionfs_node_hashhead *hd;
diff --git a/sys/fs/unionfs/union_vfsops.c b/sys/fs/unionfs/union_vfsops.c
--- a/sys/fs/unionfs/union_vfsops.c
+++ b/sys/fs/unionfs/union_vfsops.c
@@ -78,7 +78,6 @@
 	struct vnode   *lowerrootvp;
 	struct vnode   *upperrootvp;
 	struct unionfs_mount *ump;
-	struct thread *td;
 	char           *target;
 	char           *tmp;
 	char           *ep;
@@ -105,7 +104,6 @@
 	copymode = UNIONFS_TRANSPARENT;	/* default */
 	whitemode = UNIONFS_WHITE_ALWAYS;
 	ndp = &nd;
-	td = curthread;
 
 	if (mp->mnt_flag & MNT_ROOTFS) {
 		vfs_mount_error(mp, "Cannot union mount root filesystem");
@@ -284,7 +282,7 @@
 	 * Get the unionfs root vnode.
 	 */
 	error = unionfs_nodeget(mp, ump->um_uppervp, ump->um_lowervp,
-	    NULLVP, &(ump->um_rootvp), NULL, td);
+	    NULLVP, &(ump->um_rootvp), NULL);
 	vrele(upperrootvp);
 	if (error != 0) {
 		free(ump, M_UNIONFSMNT);
diff --git a/sys/fs/unionfs/union_vnops.c b/sys/fs/unionfs/union_vnops.c
--- a/sys/fs/unionfs/union_vnops.c
+++ b/sys/fs/unionfs/union_vnops.c
@@ -263,7 +263,7 @@
 	    (1 < cnp->cn_namelen || '.' != *(cnp->cn_nameptr))) {
 		/* get unionfs vnode in order to create a new shadow dir. */
 		error = unionfs_nodeget(dvp->v_mount, NULLVP, lvp, dvp, &vp,
-		    cnp, td);
+		    cnp);
 		if (error != 0)
 			goto unionfs_lookup_cleanup;
 
@@ -319,7 +319,7 @@
 		 */
 		else
 			error = unionfs_nodeget(dvp->v_mount, uvp, lvp,
-			    dvp, &vp, cnp, td);
+			    dvp, &vp, cnp);
 		if (error != 0) {
 			UNIONFSDEBUG(
 			    "unionfs_lookup: Unable to create unionfs vnode.");
@@ -383,7 +383,7 @@
 		else {
 			VOP_UNLOCK(vp);
 			error = unionfs_nodeget(ap->a_dvp->v_mount, vp, NULLVP,
-			    ap->a_dvp, ap->a_vpp, cnp, curthread);
+			    ap->a_dvp, ap->a_vpp, cnp);
 			vrele(vp);
 		}
 	}
@@ -457,7 +457,7 @@
 		else {
 			VOP_UNLOCK(vp);
 			error = unionfs_nodeget(ap->a_dvp->v_mount, vp, NULLVP,
-			    ap->a_dvp, ap->a_vpp, cnp, curthread);
+			    ap->a_dvp, ap->a_vpp, cnp);
 			vrele(vp);
 		}
 	}
@@ -1347,7 +1347,6 @@
 {
 	struct unionfs_node *dunp;
 	struct componentname *cnp;
-	struct thread  *td;
 	struct vnode   *udvp;
 	struct vnode   *uvp;
 	struct vattr	va;
@@ -1362,7 +1361,6 @@
 	dunp = VTOUNIONFS(ap->a_dvp);
 	cnp = ap->a_cnp;
 	lkflags = cnp->cn_lkflags;
-	td = curthread;
 	udvp = dunp->un_uppervp;
 
 	if (udvp != NULLVP) {
@@ -1379,7 +1377,7 @@
 			VOP_UNLOCK(uvp);
 			cnp->cn_lkflags = LK_EXCLUSIVE;
 			error = unionfs_nodeget(ap->a_dvp->v_mount, uvp, NULLVP,
-			    ap->a_dvp, ap->a_vpp, cnp, td);
+			    ap->a_dvp, ap->a_vpp, cnp);
 			cnp->cn_lkflags = lkflags;
 			vrele(uvp);
 		}
@@ -1467,7 +1465,6 @@
 {
 	struct unionfs_node *dunp;
 	struct componentname *cnp;
-	struct thread  *td;
 	struct vnode   *udvp;
 	struct vnode   *uvp;
 	int		error;
@@ -1481,7 +1478,6 @@
 	dunp = VTOUNIONFS(ap->a_dvp);
 	cnp = ap->a_cnp;
 	lkflags = cnp->cn_lkflags;
-	td = curthread;
 	udvp = dunp->un_uppervp;
 
 	if (udvp != NULLVP) {
@@ -1490,7 +1486,7 @@
 			VOP_UNLOCK(uvp);
 			cnp->cn_lkflags = LK_EXCLUSIVE;
 			error = unionfs_nodeget(ap->a_dvp->v_mount, uvp, NULLVP,
-			    ap->a_dvp, ap->a_vpp, cnp, td);
+			    ap->a_dvp, ap->a_vpp, cnp);
 			cnp->cn_lkflags = lkflags;
 			vrele(uvp);
 		}
@@ -1761,7 +1757,7 @@
 {
 	/* UNIONFS_INTERNAL_DEBUG("unionfs_reclaim: enter\n"); */
 
-	unionfs_noderem(ap->a_vp, curthread);
+	unionfs_noderem(ap->a_vp);
 
 	/* UNIONFS_INTERNAL_DEBUG("unionfs_reclaim: leave\n"); */