Merge tag 'scrub-better-repair-warnings-6.10_2024-07-29' of https://git.kernel.org...

xfs_scrub: improve warnings about difficult repairs [v30.9 07/28]

While I was poking through the QA results for xfs_scrub, I noticed that
it doesn't warn the user when the primary and secondary realtime
metadata are so out of whack that the chances of a successful repair are
not so high.  I decided that it was worth refactoring the scrub code a
bit so that we could warn the user about these types of things, and
ended up refactoring unnecessary helpers out of existence and fixing
other reporting gaps.

This has been running on the djcloud for months with no problems.  Enjoy!

Signed-off-by: Darrick J. Wong <djwong@kernel.org>