fs_maxcluster
if (fs->fs_maxcluster[cg] < len)
fs->fs_maxcluster[cg] = i;
fs->fs_maxcluster[cg] = 0;
copy_fs->fs_maxcluster = lp = space;
fs->fs_maxcluster[cgp->cg_cgx] = i;
fs->fs_maxcluster = lp = (int32_t *)space;
int32_t *fs_maxcluster; /* (u) max cluster in each cyl group */
fs->fs_maxcluster[ufs_rw32(cgp->cg_cgx, needswap)] = i;
sblock.fs_maxcluster = lp = space;