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Date: Thu, 18 Nov 2021 20:56:59 -0800
From: Alexei Starovoitov <alexei.starovoitov@gmail.com>
To: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Cc: bpf@vger.kernel.org, Jens Axboe <axboe@kernel.dk>,
Pavel Begunkov <asml.silence@gmail.com>,
io-uring@vger.kernel.org, Alexei Starovoitov <ast@kernel.org>,
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Andrii Nakryiko <andrii@kernel.org>,
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Alexander Mihalicyn <alexander@mihalicyn.com>,
Andrei Vagin <avagin@gmail.com>, criu@openvz.org,
linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH bpf-next v1 1/8] io_uring: Implement eBPF iterator for
registered buffers
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References: <20211116054237.100814-1-memxor@gmail.com>
<20211116054237.100814-2-memxor@gmail.com>
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On Fri, Nov 19, 2021 at 09:45:23AM +0530, Kumar Kartikeya Dwivedi wrote:
>
> Also, this work is part of GSoC. There is already code that is waiting for this
> to fill in the missing pieces [0]. If you want me to add a sample/selftest that
> demonstrates/tests how this can be used to reconstruct a task's io_uring, I can
> certainly do that. We've already spent a few months contemplating on a few
> approaches and this turned out to be the best/most powerful. At one point I had
> to scrap some my earlier patches completely because they couldn't work with
> descriptorless io_uring. Iterator seem like the best solution so far that can
> adapt gracefully to feature additions in something seeing as heavy development
> as io_uring.
>
> [0]: https://github.com/checkpoint-restore/criu/commit/cfa3f405d522334076fc4d687bd077bee3186ccf#diff-d2cfa5a05213c854d539de003a23a286311ae81431026d3d50b0068c0cb5a852
> [1]: https://github.com/checkpoint-restore/criu/pull/1597
Is that the main PR? 1095 changed files? Is it stale or something?
Is there a way to view the actual logic that exercises these bpf iterators?