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Ming Lei authored
Add two helpers for checking if map/unmap is needed, since we may have passthrough request which needs map or unmap in future, such as for supporting report zones. Meantime don't mark ublk_copy_user_pages as inline since this function is a bit fat now. Reviewed-by: Ziyang Zhang <ZiyangZhang@linux.alibaba.com> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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