io_uring: clarify io_req_task_cancel() locking
It's too easy to forget and misjudge about synchronisation in io_req_task_cancel(), add a comment clarifying it. Signed-off-by:Pavel Begunkov <asml.silence@gmail.com> Link: https://lore.kernel.org/r/71099083835f983a1fd73d5a3da6391924da8300.1629920396.git.asml.silence@gmail.com Signed-off-by:
Jens Axboe <axboe@kernel.dk>
parent
9a10867a
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