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io_uring: don't cancel extra on files match 

As tasks always wait and kill their io-wq on exec/exit, files are of no
more concern to us, so we don't need to specifically cancel them by hand
in those cases. Moreover we should not, because io_match_task() looks at
req->task->files now, which is always true and so leads to extra
cancellations, that wasn't a case before per-task io-wq.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/0566c1de9b9dd417f5de345c817ca953580e0e2e.1616696997.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
rM2-mainline
Pavel Begunkov 2021-03-25 18:32:45 +00:00 committed by Jens Axboe
parent 2482b58ffb
commit 78d9d7c2a3
1 changed files with 0 additions and 2 deletions
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fs/io_uring.c
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@ -1094,8 +1094,6 @@ static bool io_match_task(struct io_kiocb *head,
io_for_each_link(req, head) {
if (req->flags & REQ_F_INFLIGHT)
return true;
if (req->task->files == files)
return true;
}
return false;
}