CTL_FLAG_DELAY_DONE
if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) {
io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE;
io->io_hdr.flags |= CTL_FLAG_DELAY_DONE;
if (io->io_hdr.flags & CTL_FLAG_DELAY_DONE) {
io->io_hdr.flags &= ~CTL_FLAG_DELAY_DONE;
io->io_hdr.flags |= CTL_FLAG_DELAY_DONE;