diff --git a/sys/fs/devfs/devfs_vnops.c b/sys/fs/devfs/devfs_vnops.c
index dae4079c2c6..38d581db915 100644
--- a/sys/fs/devfs/devfs_vnops.c
+++ b/sys/fs/devfs/devfs_vnops.c
@@ -615,7 +615,7 @@ loop:
 	vp->v_data = de;
 	de->de_vnode = vp;
 	mtx_unlock(&devfs_de_interlock);
-	error = insmntque(vp, mp);
+	error = insmntque1(vp, mp, NULL, NULL);
 	if (error != 0) {
 		devfs_insmntque_dtr(vp, de);
 		(void) devfs_allocv_drop_refs(1, dmp, de);
diff --git a/sys/fs/fdescfs/fdesc_vnops.c b/sys/fs/fdescfs/fdesc_vnops.c
index 0f6111586a3..1dead8f1153 100644
--- a/sys/fs/fdescfs/fdesc_vnops.c
+++ b/sys/fs/fdescfs/fdesc_vnops.c
@@ -191,7 +191,7 @@ loop:
 	fd->fd_ix = ix;
 	if (ftype == Fdesc && fmp->flags & FMNT_LINRDLNKF)
 		vp->v_vflag |= VV_READLINK;
-	error = insmntque(vp, mp);
+	error = insmntque1(vp, mp, NULL, NULL);
 	if (error != 0) {
 		vgone(vp);
 		vput(vp);
diff --git a/sys/fs/nullfs/null_subr.c b/sys/fs/nullfs/null_subr.c
index 982c7d798bb..acf77d5cfd4 100644
--- a/sys/fs/nullfs/null_subr.c
+++ b/sys/fs/nullfs/null_subr.c
@@ -202,7 +202,7 @@ null_nodeget(struct mount *mp, struct vnode *lowervp, struct vnode **vpp)
 	}
 
 	/*
-	 * The insmntque() call below requires the exclusive lock on
+	 * The insmntque1() call below requires the exclusive lock on
 	 * the nullfs vnode.  Upgrade the lock now if hash failed to
 	 * provide ready to use vnode.
 	 */
@@ -235,7 +235,7 @@ null_nodeget(struct mount *mp, struct vnode *lowervp, struct vnode **vpp)
 	vp->v_type = lowervp->v_type;
 	vp->v_data = xp;
 	vp->v_vnlock = lowervp->v_vnlock;
-	error = insmntque(vp, mp);
+	error = insmntque1(vp, mp, NULL, NULL);
 	if (error != 0) {
 		vput(lowervp);
 		null_destroy_proto(vp, xp);
diff --git a/sys/fs/tmpfs/tmpfs_subr.c b/sys/fs/tmpfs/tmpfs_subr.c
index 234984b47c5..c6ac1b0bf35 100644
--- a/sys/fs/tmpfs/tmpfs_subr.c
+++ b/sys/fs/tmpfs/tmpfs_subr.c
@@ -983,7 +983,7 @@ loop:
 	if (vp->v_type != VFIFO)
 		VN_LOCK_ASHARE(vp);
 
-	error = insmntque(vp, mp);
+	error = insmntque1(vp, mp, NULL, NULL);
 	if (error != 0) {
 		tmpfs_insmntque_dtr(vp);
 		vp = NULL;
diff --git a/sys/fs/unionfs/union_subr.c b/sys/fs/unionfs/union_subr.c
index 57b6051104d..e051d42c07c 100644
--- a/sys/fs/unionfs/union_subr.c
+++ b/sys/fs/unionfs/union_subr.c
@@ -386,7 +386,7 @@ unionfs_nodeget(struct mount *mp, struct vnode *uppervp,
 		vp->v_vflag |= VV_ROOT;
 
 	vn_lock_pair(lowervp, false, uppervp, false); 
-	error = insmntque(vp, mp);
+	error = insmntque1(vp, mp, NULL, NULL);
 	if (error != 0) {
 		unionfs_nodeget_cleanup(vp, unp);
 		return (error);
diff --git a/sys/kern/vfs_subr.c b/sys/kern/vfs_subr.c
index a29f64fddd3..3218a3f7b6a 100644
--- a/sys/kern/vfs_subr.c
+++ b/sys/kern/vfs_subr.c
@@ -1948,7 +1948,8 @@ insmntque_stddtr(struct vnode *vp, void *dtr_arg)
  * Insert into list of vnodes for the new mount point, if available.
  */
 int
-insmntque(struct vnode *vp, struct mount *mp)
+insmntque1(struct vnode *vp, struct mount *mp,
+	void (*dtr)(struct vnode *, void *), void *dtr_arg)
 {
 
 	KASSERT(vp->v_mount == NULL,
@@ -1973,6 +1974,8 @@ insmntque(struct vnode *vp, struct mount *mp)
 	    (vp->v_vflag & VV_FORCEINSMQ) == 0) {
 		VI_UNLOCK(vp);
 		MNT_IUNLOCK(mp);
+		if (dtr != NULL)
+			dtr(vp, dtr_arg);
 		return (EBUSY);
 	}
 	vp->v_mount = mp;
@@ -1986,6 +1989,13 @@ insmntque(struct vnode *vp, struct mount *mp)
 	return (0);
 }
 
+int
+insmntque(struct vnode *vp, struct mount *mp)
+{
+
+	return (insmntque1(vp, mp, insmntque_stddtr, NULL));
+}
+
 /*
  * Flush out and invalidate all buffers associated with a bufobj
  * Called with the underlying object locked.
diff --git a/sys/sys/param.h b/sys/sys/param.h
index 6bf68810532..948a34da94e 100644
--- a/sys/sys/param.h
+++ b/sys/sys/param.h
@@ -76,7 +76,7 @@
  * cannot include sys/param.h and should only be updated here.
  */
 #undef __FreeBSD_version
-#define __FreeBSD_version 1400052
+#define __FreeBSD_version 1400051
 
 /*
  * __FreeBSD_kernel__ indicates that this system uses the kernel of FreeBSD,
diff --git a/sys/sys/vnode.h b/sys/sys/vnode.h
index 390cb8791f5..a1dbdcff4cb 100644
--- a/sys/sys/vnode.h
+++ b/sys/sys/vnode.h
@@ -689,6 +689,8 @@ int	getnewvnode(const char *tag, struct mount *mp, struct vop_vector *vops,
 	    struct vnode **vpp);
 void	getnewvnode_reserve(void);
 void	getnewvnode_drop_reserve(void);
+int	insmntque1(struct vnode *vp, struct mount *mp,
+	    void (*dtr)(struct vnode *, void *), void *dtr_arg);
 int	insmntque(struct vnode *vp, struct mount *mp);
 u_quad_t init_va_filerev(void);
 int	speedup_syncer(void);