io_uring: don't use complete_all() on SQPOLL thread exit

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We want to reuse this completion, and a single complete should do just
fine. Ensure that we park ourselves first if requested, as that is what
lead to the initial deadlock in this area. If we've got someone attempting
to park us, then we can't proceed without having them finish first.

Fixes: 37d1e2e364 ("io_uring: move SQPOLL thread io-wq forked worker")
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Jens Axboe 2021-02-26 13:46:49 -07:00

parent ba50a036f2

commit 8629397e6e

1 changed files with 4 additions and 1 deletions

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fs/io_uring.c

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