Re: [PATCH bpf-next/net 0/6] bpf: Allow opt-out from sk->sk_prot->memory_allocated.

[Roman Gushchin <roman.gushchin@linux.dev>]

Kuniyuki Iwashima <kuniyu@google.com> writes:

> This series allows opting out of the global per-protocol memory
> accounting if socket is configured as such by sysctl or BPF prog.
>
> This series is v11 of the series below [0], but I start as a new series
> because the changes now fall in net and bpf subsystems only.
>
> I discussed with Roman Gushchin offlist, and he suggested not mixing
> two independent subsystems and it would be cleaner not to depend on
> memcg.
>
> So, sk->sk_memcg and memcg code are no longer touched, and instead we
> use another hole near sk->sk_prot to store a flag for the net feature.
>
> Overview of the series:
>
>   patch 1 is misc cleanup
>   patch 2 allows opt-out from sk->sk_prot->memory_allocated
>   patch 3 introduces net.core.bypass_prot_mem
>   patch 4 & 5 supports flagging sk->sk_bypass_prot_mem via bpf_setsockopt()
>   patch 6 is selftest

Acked-by: Roman Gushchin <roman.gushchin@linux.dev>
for the series.

Thanks!