xfs: fix maxlevels comparisons in the btree staging code

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The btree geometry computation function has an off-by-one error in that
it does not allow maximally tall btrees (nlevels == XFS_BTREE_MAXLEVELS).
This can result in repairs failing unnecessarily on very fragmented
filesystems.  Subsequent patches to remove MAXLEVELS usage in favor of
the per-btree type computations will make this a much more likely
occurrence.

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

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Darrick J. Wong 2021-09-16 12:26:46 -07:00

parent 512edfac85

commit 78e8ec83a4

1 changed files with 2 additions and 2 deletions

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fs/xfs/libxfs/xfs_btree_staging.c

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