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authorChristoph Hellwig <hch@lst.de>2017-01-28 09:32:53 +0100
committerJens Axboe <axboe@fb.com>2017-01-31 10:53:10 -0700
commit97b50a654d5de505ccf972c6b7ea7bfda1c0c475 (patch)
tree95ea8c487520cca26e825c5e7272714086034d54 /Documentation/s390
parent85dada09eeb31c0eb183e4b2fac01b2381706b79 (diff)
virtio_blk: make SCSI passthrough support configurable
The SCSI passthrough idea was a a bad idea to start with (guess who came up with it?), and has been removed from the virtio 1.O spec, and is not enabled by defauly by any host I know of. Add a separate config option for it so that we don't need to enable it for most setups. That way any bugs related to it (like the one recently fixed for vmapped stacks) do not affect other users, and the size of the virtblk_req structure also shrinks significantly. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
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