xfs: add a perag to the btree cursor

Which will eventually completely replace the agno in it.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Brian Foster <bfoster@redhat.com>
This commit is contained in:
Dave Chinner 2021-06-02 10:48:24 +10:00 • committed by Dave Chinner
commit be9fb17d88
21 changed files with 119 additions and 70 deletions