io_uring: correct link-list traversal locking

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commit 674ee8e1b4 upstream.

As io_remove_next_linked() is now under ->timeout_lock (see
io_link_timeout_fn), we should update locking around io_for_each_link()
and io_match_task() to use the new lock.

Cc: stable@kernel.org # 5.15+
Fixes: 89850fce16 ("io_uring: run timeouts from task_work")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/b54541cedf7de59cb5ae36109e58529ca16e66aa.1637631883.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Pavel Begunkov 2021-11-23 01:45:35 +00:00 • committed by Greg Kroah-Hartman

parent c673d72d2f

commit 09eb40f677

1 changed files with 8 additions and 4 deletions

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fs/io_uring.c

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