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| author | Darrick J. Wong <djwong@kernel.org> | 2023-12-15 21:03:32 +0300 |
|---|---|---|
| committer | Darrick J. Wong <djwong@kernel.org> | 2023-12-15 21:03:32 +0300 |
| commit | 4bdfd7d15747b170ce93a06fafccaf20544b6684 (patch) | |
| tree | c555c17b502942124ad3ef3b3a4ee4bd1e86e7b8 /fs/xfs/libxfs/xfs_alloc_btree.c | |
| parent | 8bd0bf570bd7b5cbcce3f70b760d8dcccd8df6c8 (diff) | |
| download | linux-4bdfd7d15747b170ce93a06fafccaf20544b6684.tar.xz | |
xfs: repair free space btrees
Rebuild the free space btrees from the gaps in the rmap btree. Refer to
the case study in Documentation/filesystems/xfs-online-fsck-design.rst
for more details.
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_alloc_btree.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_alloc_btree.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/fs/xfs/libxfs/xfs_alloc_btree.c b/fs/xfs/libxfs/xfs_alloc_btree.c index c65228efed4a..a7032bf0cd37 100644 --- a/fs/xfs/libxfs/xfs_alloc_btree.c +++ b/fs/xfs/libxfs/xfs_alloc_btree.c @@ -323,7 +323,18 @@ xfs_allocbt_verify( if (bp->b_ops->magic[0] == cpu_to_be32(XFS_ABTC_MAGIC)) btnum = XFS_BTNUM_CNTi; if (pag && xfs_perag_initialised_agf(pag)) { - if (level >= pag->pagf_levels[btnum]) + unsigned int maxlevel = pag->pagf_levels[btnum]; + +#ifdef CONFIG_XFS_ONLINE_REPAIR + /* + * Online repair could be rewriting the free space btrees, so + * we'll validate against the larger of either tree while this + * is going on. + */ + maxlevel = max_t(unsigned int, maxlevel, + pag->pagf_repair_levels[btnum]); +#endif + if (level >= maxlevel) return __this_address; } else if (level >= mp->m_alloc_maxlevels) return __this_address; |