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

From: Jens Axboe
Date: Tue May 16 2023 - 10:14:40 EST



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