diff options
| author | Darrick J. Wong <djwong@kernel.org> | 2023-12-15 10:03:33 -0800 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2023-12-15 10:03:33 -0800 |
| commit | 9099cd38002f8029c9a1da08e6832d1cd18e8451 (patch) | |
| tree | 753066f947410a50279f2da91e118d89740ebfc8 /fs/xfs/libxfs/xfs_refcount_btree.c | |
| parent | dbfbf3bdf639a20da7d5fb390cd2e197d25aa418 (diff) | |
xfs: repair refcount btrees
Reconstruct the refcount data from the rmap btree.
Link: https://docs.kernel.org/filesystems/xfs-online-fsck-design.html#case-study-rebuilding-the-space-reference-counts
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'fs/xfs/libxfs/xfs_refcount_btree.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_refcount_btree.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/fs/xfs/libxfs/xfs_refcount_btree.c b/fs/xfs/libxfs/xfs_refcount_btree.c index 3fa795e2488d..0d80bd99147c 100644 --- a/fs/xfs/libxfs/xfs_refcount_btree.c +++ b/fs/xfs/libxfs/xfs_refcount_btree.c @@ -226,7 +226,18 @@ xfs_refcountbt_verify( level = be16_to_cpu(block->bb_level); if (pag && xfs_perag_initialised_agf(pag)) { - if (level >= pag->pagf_refcount_level) + unsigned int maxlevel = pag->pagf_refcount_level; + +#ifdef CONFIG_XFS_ONLINE_REPAIR + /* + * Online repair could be rewriting the refcount btree, so + * we'll validate against the larger of either tree while this + * is going on. + */ + maxlevel = max_t(unsigned int, maxlevel, + pag->pagf_repair_refcount_level); +#endif + if (level >= maxlevel) return __this_address; } else if (level >= mp->m_refc_maxlevels) return __this_address; |