bset
((uint8_t)(0x04 | bset(id, 0x2) | bset(s, 0x1)))
((uint8_t)(0x08 | bset(d, 0x04) | bset(c, 0x02) | bset(b, 0x01)))
((uint8_t)(0x13 | bset(sc, 0x08) | bset(rl, 0x04)))
((uint8_t)(0x23 | bset(dl, 0x10) | bset(n, 0x08) | bset(f, 0x04)))
int error, i, bsize, ronly, bset = 0;
bset = BC_INVAL;
bset = BC_INVAL;
brelse(bp, bset);