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Just reuse the block_device and sector from the swap_info structure, just as used by the SWP_SYNCHRONOUS path. Also remove the checks for NULL returns from bio_alloc as that can't happen for sleeping allocations. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Johannes Thumshirn <[email protected]> Reviewed-by: Chaitanya Kulkarni <[email protected]> Acked-by: Damien Le Moal <[email protected]> Signed-off-by: Jens Axboe <[email protected]>