[dm-devel] [PATCH 5/7] dm-mpath: Complain about unsupported __multipath_map_bio() return values

[Christoph Hellwig]

On Wed, Aug 09, 2017 at 11:32:14AM -0700, Bart Van Assche wrote:
> The only behavior change introduced by this patch is that WARN_ON_ONCE()
> is called if __multipath_map_bio() would return an unsupported return
> value.

Looks good,

Reviewed-by: Christoph Hellwig <hch at lst.de>