io_uring: improve sqo stop

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Set IO_SQ_THREAD_SHOULD_STOP before taking sqd lock, so the sqpoll task
sees earlier. Not a problem, it will stop eventually. Also check
invariant that it's stopped only once.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/653b24ee93843a50ff65a45847d9138f5adb76d7.1618101759.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Pavel Begunkov 2021-04-11 01:46:38 +01:00 • committed by Jens Axboe

parent aeca241b0b

commit 88885f66e8

1 changed files with 2 additions and 1 deletions

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fs/io_uring.c

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