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	*/			*/
	static int			static int
	nullfs_mount(struct mount *mp)			nullfs_mount(struct mount *mp)
	{			{
	int error = 0;			int error = 0;
	struct vnode lowerrootvp, vp;			struct vnode lowerrootvp, vp;
	struct vnode *nullm_rootvp;			struct vnode *nullm_rootvp;
	struct null_mount *xmp;			struct null_mount *xmp;
	struct thread *td = curthread;
	char *target;			char *target;
	int isvnunlocked = 0, len;			int isvnunlocked = 0, len;
	struct nameidata nd, *ndp = &nd;			struct nameidata nd, *ndp = &nd;

	NULLFSDEBUG("nullfs_mount(mp = %p)\n", (void *)mp);			NULLFSDEBUG("nullfs_mount(mp = %p)\n", (void *)mp);

	if (!prison_allow(td->td_ucred, PR_ALLOW_MOUNT_NULLFS))
	return (EPERM);
	if (mp->mnt_flag & MNT_ROOTFS)			if (mp->mnt_flag & MNT_ROOTFS)
	return (EOPNOTSUPP);			return (EOPNOTSUPP);

	/*			/*
	* Update is a no-op			* Update is a no-op
	*/			*/
	if (mp->mnt_flag & MNT_UPDATE) {			if (mp->mnt_flag & MNT_UPDATE) {
	/*			/*
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