lfs_segsize
int debug, force, fsi, fso, lfs_segsize, maxpartitions, bitwidth;
start = debug = force = lfs_segsize = bitwidth = 0;
lfs_segsize = -1;
lfs_segsize = strsuftoi64("segment size", optarg, LFS_MINSEGSIZE, INT64_MAX, NULL);
if (lfs_segsize == -1) {
lfs_segsize = 0;
lfs_segsize = auto_segsize(fsi, dkw.dkw_size / secsize,
r = make_lfs(fso, secsize, &dkw, minfree, bsize, fsize, lfs_segsize,
#define lfs_segtod(fs, seg) (lfs_btofsb(fs, lfs_segsize(fs)) * (seg))
lfs_segsize(fs) / lfs_sb_getfsize(fs)),
maxbpp = MIN(maxbpp, lfs_segsize(fs) / lfs_sb_getfsize(fs) + 2);