block: stop calling blk_queue_bounce for passthrough requests

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Instead of overloading the passthrough fast path with the deprecated
block layer bounce buffering let the users that combine an old
undermaintained driver with a highmem system pay the price by always
falling back to copies in that case.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Link: https://lore.kernel.org/r/20210331073001.46776-9-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Christoph Hellwig 2021-03-31 09:30:01 +02:00 • committed by Jens Axboe

parent 9bb33f24ab

commit 393bb12e00

5 changed files with 36 additions and 99 deletions

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include/linux/blkdev.h

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