Re: [PATCH 0/6] power_of_2 emulation support for NVMe ZNS devices

Keith Busch
2022-03-11T21:31:14Z

On Fri, Mar 11, 2022 at 01:04:35PM -0800, Luis Chamberlain wrote:
> On Fri, Mar 11, 2022 at 12:51:35PM -0800, Keith Busch wrote:
>
> > I'm starting to like the previous idea of creating an unholey
> > device-mapper for such users...
>
> Won't that restrict nvme with chunk size crap. For instance later if we
> want much larger block sizes.

I'm not sure I understand. The chunk_size has nothing to do with the
block size. And while nvme is a user of this in some circumstances, it
can't be used concurrently with ZNS because the block layer appropriates
the field for the zone size.