design: document the new inode btree counter feature

Update the ondisk format documentation to discuss the inode btree
counter feature.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
1 file changed
tree: 0c3003f631c9901d80d015b913f8546a9191a1f8
  1. admin/
  2. design/
  3. .gitignore
  4. CHANGES
  5. COPYING
  6. Makefile
  7. README