tree fae574f2aeff461ddfa0e95389f4246960643555
parent 3c30ef0f78cfb36fdb13753794b0384cf7e37cc9
author Jens Axboe <axboe@kernel.dk> 1627062834 -0600
committer Jens Axboe <axboe@kernel.dk> 1627080291 -0600

io_uring: explicitly catch any illegal async queue attempt

Catch an illegal case to queue async from an unrelated task that got
the ring fd passed to it. This should not be possible to hit, but
better be proactive and catch it explicitly. io-wq is extended to
check for early IO_WQ_WORK_CANCEL being set on a work item as well,
so it can run the request through the normal cancelation path.

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