VV_DELETED
if (vp->v_vflag & VV_DELETED)
VV_PROCDEP | VV_DELETED | VV_MD | VV_FORCEINSMQ | VV_READLINK);
if (vp->v_usecount < 2 || (vp->v_vflag & VV_DELETED))
vp->v_vflag |= VV_DELETED;
if (!(vp->v_vflag & VV_DELETED))