Merge tag 'scrub-detect-rmapbt-gaps-6.4_2023-04-11' of git://git.kernel.org/pub/scm...

xfs: detect incorrect gaps in rmap btree [v24.5]

Following in the theme of the last two patchsets, this one strengthens
the rmap btree record checking so that scrub can count the number of
space records that map to a given owner and that do not map to a given
owner.  This enables us to determine exclusive ownership of space that
can't be shared.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Dave Chinner <david@fromorbit.com>