LK_TRYUPGRADE
case LK_TRYUPGRADE:
case LK_TRYUPGRADE:
case LK_TRYUPGRADE:
if (op == LK_TRYUPGRADE) {
vn_lock(vp, LK_TRYUPGRADE);
error = VOP_LOCK(vp, LK_TRYUPGRADE | LK_INTERLOCK);
lktype != LK_TRYUPGRADE)) {