DPF_CANCELLED
prflags[2] = dpr.dpr_flags & DPF_CANCELLED ? 'C' : '-';
if (!(dpr->dpr_flags & DPF_CANCELLED)) {
if (dpr->dpr_flags & (DPF_CANCELLED | DPF_DISPATCHED)) {
VERIFY(dpr->dpr_flags == DPF_CANCELLED);
VERIFY(!(dpr->dpr_flags & DPF_CANCELLED));
dpr->dpr_flags |= DPF_CANCELLED;