loop: don't freeze the queue in lo_release
By the time the final ->release is called there can't be outstanding I/O. For non-final ->release there is no need for driver action at all. Thus remove the useless queue freeze. Signed-off-by: NChristoph Hellwig <hch@lst.de> Reviewed-by: NJan Kara <jack@suse.cz> Tested-by: NDarrick J. Wong <djwong@kernel.org> Link: https://lore.kernel.org/r/20220330052917.2566582-10-hch@lst.deSigned-off-by: NJens Axboe <axboe@kernel.dk>
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