netdev - Re: [PATCH v6 bpf-next 00/12] bpf: tcp: Exactly-once socket iteration

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Message-Id: 
 <175253222101.4006958.10212169466412631754.git-patchwork-notify@kernel.org>
Date: Mon, 14 Jul 2025 22:30:21 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Jordan Rife <jordan@...fe.io>
Cc: netdev@...r.kernel.org, bpf@...r.kernel.org, daniel@...earbox.net,
 martin.lau@...ux.dev, willemdebruijn.kernel@...il.com, kuniyu@...gle.com,
 alexei.starovoitov@...il.com, stfomichev@...il.com
Subject: Re: [PATCH v6 bpf-next 00/12] bpf: tcp: Exactly-once socket iteration

Hello:

This series was applied to bpf/bpf-next.git (net)
by Martin KaFai Lau <martin.lau@...nel.org>:

On Mon, 14 Jul 2025 11:09:04 -0700 you wrote:
> TCP socket iterators use iter->offset to track progress through a
> bucket, which is a measure of the number of matching sockets from the
> current bucket that have been seen or processed by the iterator. On
> subsequent iterations, if the current bucket has unprocessed items, we
> skip at least iter->offset matching items in the bucket before adding
> any remaining items to the next batch. However, iter->offset isn't
> always an accurate measure of "things already seen" when the underlying
> bucket changes between reads, which can lead to repeated or skipped
> sockets. Instead, this series remembers the cookies of the sockets we
> haven't seen yet in the current bucket and resumes from the first cookie
> in that list that we can find on the next iteration.
> 
> [...]

Here is the summary with links:
  - [v6,bpf-next,01/12] bpf: tcp: Make mem flags configurable through bpf_iter_tcp_realloc_batch
    https://git.kernel.org/bpf/bpf-next/c/8271bec9fc1c
  - [v6,bpf-next,02/12] bpf: tcp: Make sure iter->batch always contains a full bucket snapshot
    https://git.kernel.org/bpf/bpf-next/c/cdec67a489d4
  - [v6,bpf-next,03/12] bpf: tcp: Get rid of st_bucket_done
    https://git.kernel.org/bpf/bpf-next/c/e25ab9b874a4
  - [v6,bpf-next,04/12] bpf: tcp: Use bpf_tcp_iter_batch_item for bpf_tcp_iter_state batch items
    https://git.kernel.org/bpf/bpf-next/c/efeb820951eb
  - [v6,bpf-next,05/12] bpf: tcp: Avoid socket skips and repeats during iteration
    https://git.kernel.org/bpf/bpf-next/c/f5080f612a1c
  - [v6,bpf-next,06/12] selftests/bpf: Add tests for bucket resume logic in listening sockets
    https://git.kernel.org/bpf/bpf-next/c/da1d987d3b39
  - [v6,bpf-next,07/12] selftests/bpf: Allow for iteration over multiple ports
    https://git.kernel.org/bpf/bpf-next/c/346066c3278f
  - [v6,bpf-next,08/12] selftests/bpf: Allow for iteration over multiple states
    https://git.kernel.org/bpf/bpf-next/c/f00468124a08
  - [v6,bpf-next,09/12] selftests/bpf: Make ehash buckets configurable in socket iterator tests
    (no matching commit)
  - [v6,bpf-next,10/12] selftests/bpf: Create established sockets in socket iterator tests
    (no matching commit)
  - [v6,bpf-next,11/12] selftests/bpf: Create iter_tcp_destroy test program
    https://git.kernel.org/bpf/bpf-next/c/8fc0c5a82d04
  - [v6,bpf-next,12/12] selftests/bpf: Add tests for bucket resume logic in established sockets
    https://git.kernel.org/bpf/bpf-next/c/f126f0ce7c83

You are awesome, thank you!
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