Re: [PATCH v3 bpf-next 1/2] bpf: af_unix: Implement BPF iterator for UNIX domain socket.

From:   Martin KaFai Lau <redacted>
Date:   Thu, 5 Aug 2021 17:41:14 -0700

On Wed, Aug 04, 2021 at 04:08:50PM +0900, Kuniyuki Iwashima wrote:

quoted

Currently, the batch optimization introduced for the TCP iterator in the
commit 04c7820b776f ("bpf: tcp: Bpf iter batching and lock_sock") is not
applied.  It will require replacing the big lock for the hash table with

may be s/applied/used/.  I thought it meant the commit is not landed.

Ah sorry, I meant the same optimisation logic is not used for now.
I'll change the word.

quoted

small locks for each hash list not to block other processes.

Right, I don't think it can be directly reused.  Not necessary
related to the big lock though.  Actually, a big lock will still
work for batching but just less ideal.

Yes, batching can be done with a big lock.

Batching is needed for supporting bpf_setsockopt.  It can be added later
together with the bpf_setsockopt support.

I'm trying to replace the big lock, so I'll submit another set for batching
and bpf_setsockopt support.

Thank you!