The qemu-io command sequences make the assumption that an unaligned
request on the format layer will be unaligned on the blkdebug layer as
well. This doesn't necessarily hold true for drivers other than raw.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Benoît Canet <benoit@irqsave.net>