to #26323578

commit 70cf9f3270a5c5148e93a526dc1e51965259e70c upstream.

There is only one one-liner user of io_free_req_find_next(). Inline it.
Signed-off-by: NPavel Begunkov <asml.silence@gmail.com>
Signed-off-by: NJens Axboe <axboe@kernel.dk>
Signed-off-by: NJoseph Qi <joseph.qi@linux.alibaba.com>
Acked-by: NXiaoguang Wang <xiaoguang.wang@linux.alibaba.com>