memory_bm_free
memory_bm_free(bm1, PG_UNSAFE_CLEAR);
memory_bm_free(bm1, PG_UNSAFE_CLEAR);
memory_bm_free(bm2, PG_UNSAFE_CLEAR);
memory_bm_free(safe_highmem_bm, PG_UNSAFE_CLEAR);
memory_bm_free(bm, PG_UNSAFE_KEEP);
memory_bm_free(zero_bm, PG_UNSAFE_KEEP);
memory_bm_free(&tmp, PG_UNSAFE_CLEAR);
static void memory_bm_free(struct memory_bitmap *bm, int clear_nosave_free);
memory_bm_free(bm, PG_UNSAFE_CLEAR);