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block: sanitize the elevator name before passing it to __elevator_change
The stripped name should also be used for the none check. To do so strip it in the caller and pass in the sanitized name. Drop the pointless __ prefix in the function name while we're at it. Based on a patch from Jinlong Chen <[email protected]>. Signed-off-by: Christoph Hellwig <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jens Axboe <[email protected]>
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