[PATCHv2 2/2] nvme: add support multipath passthrough iostats

[Christoph Hellwig]

On Tue, May 26, 2026 at 08:39:21AM -0700, Keith Busch wrote:
> +	struct nvme_ns *ns = q->queuedata;
>  	struct request *req;
>  
> +	if (ns && nvme_ns_head_multipath(ns->head))
> +		rq_flags |= REQ_NVME_MPATH;

I just wanted to come with reasons why it this is wrong, but it actually
seems already - we only have a ns for multipath nodes if multipathing
is enabled.  Maybe throw a little comment in on that?

Otherwise looks good.