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(parent: ef098d5) | patch
io_uring: improve ctx hang handling
authorPavel Begunkov <asml.silence@gmail.com>
Mon, 9 Aug 2021 12:04:17 +0000 (13:04 +0100)
committerJens Axboe <axboe@kernel.dk>
Mon, 23 Aug 2021 19:07:59 +0000 (13:07 -0600)
commit99e62b70a98b49a76db866f9649870160d00effe
tree56db10d69c2172010bcd2ee721b35df44f0f4b68tree | snapshot
parentef098d5b1a45c34fda1be9d22c47421d4ec02969commit | diff
io_uring: improve ctx hang handling

If io_ring_exit_work() can't get it done in 5 minutes, something is
going very wrong, don't keep spinning at HZ / 20 rate, it doesn't help
and it may take much of CPU time if there is a lot of workers stuck as
such.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/9e2d1ca81d569f6bc628af1a42ff6663bff7ce9c.1628471125.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
fs/io_uring.c diff | blob | history
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