Anton Protopopov wrote:
> When more than 64 maps are used by a program and its subprograms the
> verifier returns -E2BIG. Add a verbose message which highlights the
> source of the error and also print the actual limit.
>
> v1 -> v2:
> * make the message more clear (Alexey)
>
> Signed-off-by: Anton Protopopov <aspsk@xxxxxxxxxxxxx>
> Acked-by: Yonghong Song <yonghong.song@xxxxxxxxx>
> ---
> kernel/bpf/verifier.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c
> index edb650667f44..559526191ae7 100644
> --- a/kernel/bpf/verifier.c
> +++ b/kernel/bpf/verifier.c
> @@ -18348,6 +18348,8 @@ static int resolve_pseudo_ldimm64(struct bpf_verifier_env *env)
> }
>
> if (env->used_map_cnt >= MAX_USED_MAPS) {
> + verbose(env, "The total number of maps per program is reached the limit of %u\n",
> + MAX_USED_MAPS);
> fdput(f);
> return -E2BIG;
> }
> --
> 2.34.1
>
>
LGTM thanks.
Acked-by: John Fastabend <john.fastabend@xxxxxxxxx>
