Re: [PATCH bpf v4 1/2] libbpf: Apply map_set_def_max_entries() for inner_maps on creation

[Yonghong Song <yonghong.song@xxxxxxxxx>]

On 1/16/24 6:01 AM, Andrey Grafin wrote:
> This patch allows to auto create BPF_MAP_TYPE_ARRAY_OF_MAPS and
> BPF_MAP_TYPE_HASH_OF_MAPS with values of BPF_MAP_TYPE_PERF_EVENT_ARRAY
> by bpf_object__load().
>
> Previous behaviour created a zero filled btf_map_def for inner maps and
> tried to use it for a map creation but the linux kernel forbids to create
> a BPF_MAP_TYPE_PERF_EVENT_ARRAY map with max_entries=0.
>
> Signed-off-by: Andrey Grafin <conquistador@xxxxxxxxxxxxxx>

Acked-by: Yonghong Song <yonghong.song@xxxxxxxxx>