Re: [PATCH 0/3] extra io_uring BPF examples

[Pavel Begunkov <asml.silence@gmail.com>]

On 2/23/26 14:14, Jens Axboe wrote:
> On 2/23/26 7:11 AM, Pavel Begunkov wrote:
>> NOT FOR INCLUSION
>>
>> Alexei asked for extra more realistic examples. This this series is
>> based on top of v9 of the io_uring BPF series and implemented as
>> selftests. There could be more, but I stopped with 3 that should
>> give an idea how it'll be used:
>>
>> 1. A QD=1 file copy program that show cases state machine handling.
>>
>> 2. A BPF program rate-limiting the number of inflight io_uring request.
>>     That's a good example of what users asked for before but seemed to
>>     be too niche to be plumbed into the main io_uring path.
>>
>> 3. A toy example of how BPF can interact with registered buffers.
> 
> Let's please keep examples in the liburing side, where they can be
> with the documentation too.

I got you a liburing example

https://github.com/isilence/liburing/tree/bpf-ops-example

but need to sync with the selftest. I think I'll rather keep the rest
into a separate repository instead of adding all helpers to liburing,
which will inevitably do similar things but deviating in API and
internal details. And it's simpler on dependency management instead
of requiring libbpf / etc. for liburing. I wanted a space for
misc io_uring bits that doesn't make sense to keep as core liburing
anyway.

-- 
Pavel Begunkov