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This makes the printing order of the io schedulers consistent, and removes
a redundant q->elevator check.
Signed-off-by: Jinlong Chen <nickyc975@zju.edu.cn>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/bdd7083ed4f232e3285f39081e3c5f30b20b8da2.1669736350.git.nickyc975@zju.edu.cn

Signed-off-by: Jens Axboe <axboe@kernel.dk>