With kbuf unification io_req_task_complete() is now a generic function,
use it for timeout's tw completions.
Signed-off-by: NPavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/7142fa3cbaf3a4140d59bcba45cbe168cf40fac2.1638714983.git.asml.silence@gmail.comSigned-off-by: NJens Axboe <axboe@kernel.dk>