ubifs_find_dirty_leb
ret = ubifs_find_dirty_leb(c, &lp, min_space, anyway ? 0 : 1);
err = ubifs_find_dirty_leb(c, &lp, wbuf->offs, 2);
int ubifs_find_dirty_leb(struct ubifs_info *c, struct ubifs_lprops *ret_lp,