io_uring: fix io_sqe_files_unregister() hangs

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io_sqe_files_unregister() uninterruptibly waits for enqueued ref nodes,
however requests keeping them may never complete, e.g. because of some
userspace dependency. Make sure it's interruptible otherwise it would
hang forever.

Cc: stable@vger.kernel.org # 5.6+
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Pavel Begunkov 2020-12-30 21:34:15 +00:00 • committed by Jens Axboe

parent 1642b4450d

commit 1ffc54220c

1 changed files with 22 additions and 2 deletions

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fs/io_uring.c

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