Re: [RESEND][PATCH bpf-next] bpf: Check map->record at the beginning of check_and_free_fields()

[Kumar Kartikeya Dwivedi <memxor@xxxxxxxxx>]

On Sat, 15 Mar 2025 at 15:57, Hou Tao <houtao@xxxxxxxxxxxxxxx> wrote:
>
> From: Hou Tao <houtao1@xxxxxxxxxx>
>
> When there are no special fields in the map value, there is no need to
> invoke bpf_obj_free_fields(). Therefore, checking the validity of
> map->record in advance.
>
> After the change, the benchmark result of the per-cpu update case in
> map_perf_test increased by 40% under a 16-CPU VM.
>
> Signed-off-by: Hou Tao <houtao1@xxxxxxxxxx>
> ---

Acked-by: Kumar Kartikeya Dwivedi <memxor@xxxxxxxxx>