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From: Jens Axboe <axboe@kernel.dk>
To: Pavel Begunkov <asml.silence@gmail.com>, io-uring@vger.kernel.org
Subject: Re: [RFC v1 0/3] introduce io_uring querying
Date: Wed, 27 Aug 2025 09:35:17 -0600	[thread overview]
Message-ID: <271e1f16-3651-4bb7-a2e1-ef447d37ba8c@kernel.dk> (raw)
In-Reply-To: <cover.1756300192.git.asml.silence@gmail.com>

On 8/27/25 7:21 AM, Pavel Begunkov wrote:
> Introduce a versatile interface to query auxilary io_uring parameters.
> It will be used to close a couple of API gaps, but in this series can
> only tell what request and register opcodes, features and setup flags
> are available. It'll replace IORING_REGISTER_PROBE  but with a much
> more convenient interface. Patch 3 for API description.
> 
> Can be tested with:
> 
> https://github.com/isilence/liburing.git io_uring/query-v1
> 
> Note: RFC as I've got a last minute uapi adjustment I want to try.

Nice, was actually just dabbling in this yesterday, there are some
half assed patches here:

https://git.kernel.dk/cgit/linux/log/?h=io_uring-features

Your patch I had the identical one of, but moved it to a separate header
instead for adding more limits.

But I like your query style better than Yet Another
struct-with-resv-fields. I think that direction is good for sure.

-- 
Jens Axboe

  parent reply	other threads:[~2025-08-27 15:35 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-08-27 13:21 [RFC v1 0/3] introduce io_uring querying Pavel Begunkov
2025-08-27 13:21 ` [RFC v1 1/3] io_uring: add helper for *REGISTER_SEND_MSG_RING Pavel Begunkov
2025-08-27 13:21 ` [RFC v1 2/3] io_uring: add macro for features and valid setup flags Pavel Begunkov
2025-08-27 13:21 ` [RFC v1 3/3] io_uring: introduce io_uring querying Pavel Begunkov
2025-08-27 18:04   ` Gabriel Krisman Bertazi
2025-08-27 19:45     ` Pavel Begunkov
2025-08-27 15:35 ` Jens Axboe [this message]
2025-08-27 16:51   ` [RFC v1 0/3] " Pavel Begunkov

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