Re: [PATCH bpf-next v4 28/30] bpf: eliminate rlimit-based memory accounting infra for bpf maps

[Alexei Starovoitov]

On Fri, Aug 21, 2020 at 08:01:32AM -0700, Roman Gushchin wrote:
>  
> diff --git a/tools/testing/selftests/bpf/progs/map_ptr_kern.c 
> b/tools/testing/selftests/bpf/progs/map_ptr_kern.c
> index 473665cac67e..49d1dcaf7999 100644
> --- a/tools/testing/selftests/bpf/progs/map_ptr_kern.c
> +++ b/tools/testing/selftests/bpf/progs/map_ptr_kern.c
> @@ -26,17 +26,12 @@ __u32 g_line = 0;
>               return 0;       \
>  })
>  
> -struct bpf_map_memory {
> -     __u32 pages;
> -} __attribute__((preserve_access_index));
> -
>  struct bpf_map {
>       enum bpf_map_type map_type;
>       __u32 key_size;
>       __u32 value_size;
>       __u32 max_entries;
>       __u32 id;
> -     struct bpf_map_memory memory;
>  } __attribute__((preserve_access_index));

hmm. Did you build selftests?

progs/map_ptr_kern.c:45:14: error: no member named 'memory' in 'struct bpf_map'
        VERIFY(map->memory.pages > 0);
               ~~~  ^
progs/map_ptr_kern.c:25:8: note: expanded from macro 'VERIFY'