xfs_db: report absolute maxlevels for each btree type

Augment the xfs_db btheight command so that the debugger can display the
absolute maximum btree height for each btree type.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chandan Babu R <chandan.babu@oracle.com>
3 files changed