io_uring: fix cancel of deferred reqs with ->files

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While trying to cancel requests with ->files, it also should look for
requests in ->defer_list, otherwise it might end up hanging a thread.

Cancel all requests in ->defer_list up to the last request there with
matching ->files, that's needed to follow drain ordering semantics.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Pavel Begunkov 2020-09-06 00:45:14 +03:00 • committed by Jens Axboe

parent c183edff33

commit b7ddce3cbf

1 changed files with 27 additions and 0 deletions

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fs/io_uring.c

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