io_uring: replace list with stack for req caches

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Replace struct list_head free_list serving for caching requests with
singly linked stack, which is faster.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/1bc942b82422fb2624b8353bd93aca183a022846.1632516769.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Pavel Begunkov 2021-09-24 21:59:47 +01:00 • committed by Jens Axboe

parent 0d9521b9b5

commit c2b6c6bc4e

1 changed files with 24 additions and 27 deletions

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fs/io_uring.c

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