dm: introduce a new DM_MAPIO_KILL return value
This untangles the DM_MAPIO_* values returned from ->clone_and_map_rq from the error codes used by the block layer. Signed-off-by:Christoph Hellwig <hch@lst.de> Signed-off-by:
Mike Snitzer <snitzer@redhat.com>
parent
7ed8578a
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