vn_vget_ino
error = vn_vget_ino(pdp, ino, cnp->cn_lkflags, &tdp);
error = vn_vget_ino(dvp, parent->ino, cnp->cn_lkflags,
error = vn_vget_ino(dvp, id, lkflags, &tdp);
int vn_vget_ino(struct vnode *vp, ino_t ino, int lkflags,
error = vn_vget_ino(pdp, ino, cnp->cn_lkflags, &tdp);