io_uring: pre-calculate scq layout

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Move ring layouts calculations into io_prepare_config(), so that more
misconfiguration checking can be done earlier before creating a ctx.
It also deduplicates some code with ring resizing. And as a bonus, now
it initialises params->sq_off.array, which is closer to all other user
offset init, and also applies it to ring resizing, which was previously
missing it.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Pavel Begunkov 2025-11-12 12:45:58 +00:00 • committed by Jens Axboe

parent 001b76b7e7

commit eb76ff6a68

3 changed files with 15 additions and 19 deletions

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27

io_uring/io_uring.c

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3

io_uring/io_uring.h

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4

io_uring/register.c

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