xfs_repair: use bitmap to track blocks lost during btree construction

Use the incore bitmap structure to track blocks that were lost during
btree construction.  This is more space efficient than a raw block list
if the entries are contiguous, and gets rid of another bespoke data
structure.

Remove the unnecessary parameter to build_agf_agfl while we're at it.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
3 files changed