io_uring: improve sqpoll event/state handling

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As sqd->state changes rarely, don't check every event one by one but
look them all at once. Add a helper function. Also don't go into event
waiting sleeping with STOP flag set.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/645025f95c7eeec97f88ff497785f4f1d6f3966f.1621201931.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Pavel Begunkov 2021-05-16 22:58:00 +01:00 • committed by Jens Axboe

parent 009c9aa5be

commit e4b6d902a9

1 changed files with 28 additions and 17 deletions

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fs/io_uring.c

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