diff --git a/sys/kern/vfs_default.c b/sys/kern/vfs_default.c
index 37881475f89b..2d9a9082422e 100644
--- a/sys/kern/vfs_default.c
+++ b/sys/kern/vfs_default.c
@@ -98,6 +98,7 @@ struct vop_vector default_vnodeops = {
 	.vop_accessx =		vop_stdaccessx,
 	.vop_advlock =		vop_stdadvlock,
 	.vop_advlockasync =	vop_stdadvlockasync,
+	.vop_advlockpurge =	vop_stdadvlockpurge,
 	.vop_bmap =		vop_stdbmap,
 	.vop_close =		VOP_NULL,
 	.vop_fsync =		VOP_NULL,
@@ -413,6 +414,16 @@ vop_stdadvlockasync(struct vop_advlockasync_args *ap)
 	return (lf_advlockasync(ap, &(vp->v_lockf), vattr.va_size));
 }
 
+int
+vop_stdadvlockpurge(struct vop_advlockpurge_args *ap)
+{
+	struct vnode *vp;
+
+	vp = ap->a_vp;
+	lf_purgelocks(vp, &vp->v_lockf);
+	return (0);
+}
+
 /*
  * vop_stdpathconf:
  *
diff --git a/sys/kern/vfs_subr.c b/sys/kern/vfs_subr.c
index 1fb131acd448..d44b73567431 100644
--- a/sys/kern/vfs_subr.c
+++ b/sys/kern/vfs_subr.c
@@ -2585,7 +2585,7 @@ vgonel(struct vnode *vp)
 	/*
 	 * Clear the advisory locks and wake up waiting threads.
 	 */
-	lf_purgelocks(vp, &(vp->v_lockf));
+	(void)VOP_ADVLOCKPURGE(vp);
 	/*
 	 * Delete from old mount point vnode list.
 	 */
diff --git a/sys/kern/vnode_if.src b/sys/kern/vnode_if.src
index c9f20e343bdb..304e00905c5a 100644
--- a/sys/kern/vnode_if.src
+++ b/sys/kern/vnode_if.src
@@ -453,6 +453,13 @@ vop_advlockasync {
 };
 
 
+%% advlockpurge	vp	E E E
+
+vop_advlockpurge {
+	IN struct vnode *vp;
+};
+
+
 %% reallocblks	vp	E E E
 
 vop_reallocblks {
diff --git a/sys/sys/vnode.h b/sys/sys/vnode.h
index 64b3ce4e89e8..4c79ea530ff2 100644
--- a/sys/sys/vnode.h
+++ b/sys/sys/vnode.h
@@ -692,6 +692,7 @@ int	vop_stdaccess(struct vop_access_args *ap);
 int	vop_stdaccessx(struct vop_accessx_args *ap);
 int	vop_stdadvlock(struct vop_advlock_args *ap);
 int	vop_stdadvlockasync(struct vop_advlockasync_args *ap);
+int	vop_stdadvlockpurge(struct vop_advlockpurge_args *ap);
 int	vop_stdpathconf(struct vop_pathconf_args *);
 int	vop_stdpoll(struct vop_poll_args *);
 int	vop_stdvptocnp(struct vop_vptocnp_args *ap);