On Mon, Jun 02, 2025 at 11:12:38PM -0400, Martin K. Petersen wrote:

As a result, the block layer considers the opaque metadata part of the
PI but it technically isn't. It really should be the other way around:
The PI is a subset of the metadata.

It would require quite a bit of rototilling to metadata-ize the block
layer plumbing at this point. But for a new user API, I do think we
should try to align with the architecture outlined in the standards.

As in exporting the total metadata size and PI tuple size?