is_small          828 lj_alloc.c       if (is_small(S)) { insert_small_chunk(M, P, S)\
is_small          832 lj_alloc.c       if (is_small(S)) { unlink_small_chunk(M, P, S)\
is_small          859 lj_alloc.c       if (is_small(nb)) /* Can't shrink direct regions below small size */
is_small         1415 lj_alloc.c         if (is_small(psize)) {