VTOUNIONFS
#define UNIONFSVPTOLOWERVP(vp) (VTOUNIONFS(vp)->un_lowervp)
#define UNIONFSVPTOUPPERVP(vp) (VTOUNIONFS(vp)->un_uppervp)
unp = VTOUNIONFS(vp);
udvp = VTOUNIONFS(unp->un_dvp)->un_uppervp;
unp = VTOUNIONFS(vp);
unp = VTOUNIONFS(vp);
unp = VTOUNIONFS(filename_vp);
unp = VTOUNIONFS(fdvp);
unp = VTOUNIONFS(fvp);
unp = VTOUNIONFS(tdvp);
unp = VTOUNIONFS(tvp);
dunp = VTOUNIONFS(ap->a_dvp);
dunp = VTOUNIONFS(ap->a_dvp);
unp = VTOUNIONFS(ap->a_vp);
dunp = VTOUNIONFS(dvp);
dunp = VTOUNIONFS(ap->a_dvp);
unp = VTOUNIONFS(ap->a_vp);
unp = VTOUNIONFS(ap->a_vp);
unp = VTOUNIONFS(ap->a_vp);
unp = VTOUNIONFS(ap->a_vp);
unp = VTOUNIONFS(ap->a_vp);
unp = VTOUNIONFS(ap->a_vp);
unp = VTOUNIONFS(ap->a_vp);
unp = VTOUNIONFS(ap->a_vp);
unp = VTOUNIONFS(ap->a_vp);
unp = VTOUNIONFS(ap->a_vp);
unp = VTOUNIONFS(ap->a_vp);
unp = VTOUNIONFS(ap->a_dvp);
unp = VTOUNIONFS(ap->a_vp);
unp = VTOUNIONFS(ap->a_vp);
unp = VTOUNIONFS(vp);
unp = VTOUNIONFS(vp);
unp = VTOUNIONFS(ap->a_vp);
udvp, VTOUNIONFS(vp), cnp);
dunp = VTOUNIONFS(ap->a_dvp);
dunp = VTOUNIONFS(ap->a_dvp);
dunp = VTOUNIONFS(ap->a_dvp);
unp = VTOUNIONFS(ap->a_vp);
unp = VTOUNIONFS(ap->a_vp);
unp = VTOUNIONFS(ap->a_vp);
unp = VTOUNIONFS(ap->a_vp);
unp = VTOUNIONFS(ap->a_vp);
unp = VTOUNIONFS(ap->a_vp);
dunp = VTOUNIONFS(ap->a_dvp);
unp = VTOUNIONFS(ap->a_vp);
unp = VTOUNIONFS(ap->a_vp);
unp = VTOUNIONFS(ap->a_vp);
unp = VTOUNIONFS(ap->a_vp);
dunp = VTOUNIONFS(ap->a_dvp);
unp = VTOUNIONFS(ap->a_vp);
dunp = VTOUNIONFS(ap->a_tdvp);
unp = VTOUNIONFS(ap->a_vp);