io_uring: warn when ring exit takes too long

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We use system_unbound_wq to run io_ring_exit_work(), so it's hard to
monitor whether removal hang or not. Add WARN_ONCE to catch hangs.

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

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Pavel Begunkov 2021-03-06 11:02:16 +00:00 • committed by Jens Axboe

parent baf186c4d3

commit b5bb3a24f6

1 changed files with 5 additions and 0 deletions

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fs/io_uring.c

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