io_uring: use persistent request cache

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Now that we have the submit_state in the ring itself, we can have io_kiocb
allocations that are persistent across invocations. This reduces the time
spent doing slab allocations and frees.

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

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Jens Axboe 2021-02-10 00:03:19 +00:00

parent 6ff119a6e4

commit 1b4c351f6e

1 changed files with 30 additions and 18 deletions

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fs/io_uring.c

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