On Thu, Jan 04, 2018 at 04:47:27PM -0700, Keith Busch wrote: > It looks like you can also touch up dm to allow it to multipath nvme > even if CONFIG_NVME_MULTIPATH is set. It may be useful since native NVMe > doesn't multipath namespaces across subsystems, and some crack smoking > people want to create something that requires that. Right now that is simply not allowed by the spec. If Dave comes up with a palatable way to retrofit that into the spec we'll support it.