Re: [PATCH v4 10/11] nvme: Atomic write support

[John Garry]

On 20/02/2024 08:31, Christoph Hellwig wrote:
> Thanks for writing a good commit message!
>
> > NVMe namespaces may define an atomic boundary, whereby no atomic guarantees
> > are provided for a write which straddles this per-lba space boundary. The
> > block layer merging policy is such that no merges may occur in which the
> > resultant request would straddle such a boundary.
> >
> > Unlike SCSI, NVMe specifies no granularity or alignment rules.
>
> Well, the boundary really is sort of a granularity and alignment,
> isn't it?

NVMe does indeed have the boundary rule, but it is not really the same 
as SCSI granularity and alignment.

Anyway, I can word that statement to be clearer.

Thanks,
John