bpf_map_do_batch
err = bpf_map_do_batch(&attr, uattr.user, BPF_MAP_LOOKUP_BATCH);
err = bpf_map_do_batch(&attr, uattr.user,
err = bpf_map_do_batch(&attr, uattr.user, BPF_MAP_UPDATE_BATCH);
err = bpf_map_do_batch(&attr, uattr.user, BPF_MAP_DELETE_BATCH);