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Kevin Wolf authored
If a read-only device is configured with copy-on-read=on, the old code only prints a warning and automatically disables copy on read. Make it a real error for blockdev-add. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
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