linux-kernel - Re: [RFC PATCH] io_uring: Add io_uring_setup flag to pre-register ring fd and never install it

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Date:   Tue, 16 May 2023 08:14:33 -0600
From:   Jens Axboe <axboe@...nel.dk>
To:     Pavel Begunkov <asml.silence@...il.com>, io-uring@...r.kernel.org,
        linux-kernel@...r.kernel.org, Josh Triplett <josh@...htriplett.org>
Subject: Re: [RFC PATCH] io_uring: Add io_uring_setup flag to pre-register
 ring fd and never install it


On Sat, 29 Apr 2023 01:40:30 +0900, Josh Triplett wrote:
> With IORING_REGISTER_USE_REGISTERED_RING, an application can register
> the ring fd and use it via registered index rather than installed fd.
> This allows using a registered ring for everything *except* the initial
> mmap.
> 
> With IORING_SETUP_NO_MMAP, io_uring_setup uses buffers allocated by the
> user, rather than requiring a subsequent mmap.
> 
> [...]

Applied, thanks!

[1/1] io_uring: Add io_uring_setup flag to pre-register ring fd and never install it
      commit: 6e76ac595855db27bbdaef337173294a6fd6eb2c

Best regards,
-- 
Jens Axboe