unsigned int recs_per_track(unsigned int dl) { int dn = ceil_quot(dl + 6, 232) + 1; return 1729 / (10 + 9 + ceil_quot(dl + 6 * dn, 34)); }
static unsigned int recs_per_track(struct dasd_eckd_characteristics * rdc, unsigned int kl, unsigned int dl) { int dn, kn; switch (rdc->dev_type) { case 0x3380: if (kl) return 1499 / (15 + 7 + ceil_quot(kl + 12, 32) + ceil_quot(dl + 12, 32)); else return 1499 / (15 + ceil_quot(dl + 12, 32)); case 0x3390: dn = ceil_quot(dl + 6, 232) + 1; if (kl) { kn = ceil_quot(kl + 6, 232) + 1; return 1729 / (10 + 9 + ceil_quot(kl + 6 * kn, 34) + 9 + ceil_quot(dl + 6 * dn, 34)); } else return 1729 / (10 + 9 + ceil_quot(dl + 6 * dn, 34)); case 0x9345: dn = ceil_quot(dl + 6, 232) + 1; if (kl) { kn = ceil_quot(kl + 6, 232) + 1; return 1420 / (18 + 7 + ceil_quot(kl + 6 * kn, 34) + ceil_quot(dl + 6 * dn, 34)); } else return 1420 / (18 + 7 + ceil_quot(dl + 6 * dn, 34)); } return 0; }