There are block changes in this series. I was going to ask Carlos toTo avoid conflicts, let's do a separate branch that we can both pull in.
queue this work via the XFS tree, so can you let me know whether you
have any issue with those (block) changes. There is a fix included,
which I can manually backport to stable (if not autoselected).
Note that I still plan on sending a v10 for this series, to fix a
small documentation issue which Darrick noticed.
I'll take a closer look and set that up once you post v10.