io_uring: SQPOLL stop error handling fixes

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If we fail to fork an SQPOLL worker, we can hit cancel, and hence
attempted thread stop, with the thread already being stopped. Ensure
we check for that.

Also guard thread stop fully by the sqd mutex, just like we do for
park.

Signed-off-by: Jens Axboe <axboe@kernel.dk>

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This commit is contained in:

Jens Axboe 2021-02-26 11:27:15 -07:00

parent 470ec4ed8c

commit e54945ae94

1 changed files with 18 additions and 7 deletions

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fs/io_uring.c

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