nvme: problem with chunk_sectors and blkzone

[Javier González]

Keith,

I have noticed that one of the patches merged some time ago, where we
are avoiding to set chunk_sectors due to the lack of noiob indirectly
breaks blkzone

    e83d776f9f98b nvme: only use power of two io boundaries

if id->noiob is not set, then chunk_sectors is set to 0, which turns out
in blkzone failing in ZNS SSDs not setting the IO boundary

     blkzone: /dev/nvme0n1: unable to determine zone size

This is easy reproduceable with QEMU

Am I missing something here?

I am happy to send a patch to utils-linux fixing this (have one with me
as I looked into the problem), but I think it is worth reporting this as
it is effectively breaking user-space.

Thoughts?

Javier