Issue with AWUPF when using multiple controllers in a subsystem

[Christoph Hellwig]

On Thu, Apr 10, 2025 at 10:09:53AM +0100, John Garry wrote:
> This, combined with no dedicated NVMe command to issue a write atomically
> (which could error for out-of-limits size/crossing boundary), is pretty
> concerning.

Agreed.  Given that Oracle is actually a major user of NVMe, can you
bring that to the working group's attention?  That works much better
than a random Linux maintainer.

> As an aside, I found the scope of the boundary definition to be quite vague
> as well.

It used to be really horrible, but got a major rework for multiple
atomicy in NVMe 2.2 (or was it 2.1?).  Which version did you check?