VMOP_WAIT
flags = VMOP_WAIT;
res->flags |= VMOP_WAIT;
vid.vid_flags = flags & (VMOP_FORCE|VMOP_WAIT);
if (flags & VMOP_WAIT) {
if (wait || vid.vid_flags & VMOP_WAIT) {
vid.vid_flags |= VMOP_WAIT;