Looks good to me: Reviewed-by: Christoph Hellwig <hch@xxxxxx> While I don't think setting the block size for a passthrough backend makes sense let's solve this at a generic layer. It's optional in your patch anyway. -- To unsubscribe from this list: send the line "unsubscribe target-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html