[PATCH v4 11/11] scsi: add support for user-meta interface

[Christoph Hellwig]

On Fri, Oct 18, 2024 at 01:56:48PM +0530, Anuj Gupta wrote:
> > Just curious, do you have any user of the more fine grained checking
> > in NVMe?  If not we could support the SCSI semantics only and emulate
> > them using the fine grained NVMe semantics and have no portability
> > problems.
>  
> We can choose to support scsi semantics only and expose only the valid
> scsi combinations to userspace i.e.
> 
> 1. no check
> 2. guard check only
> 3. ref + app check only
> 4. guard + ref + app check
> 
> Something like this [*] on top of this series, untested though. Does
> this align with what you have in mind?

That is indeed what I had in mind.  But I'd really like to hear from
Martin on this as well.