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87b2a82e13
xfstests xfs/377 can make xfs_scrub repeatedly check and repair the
attr block map after inode repair zaps an attr fork.
When inode repair zaps an attr fork, it records
XFS_SICK_INO_BMBTA_ZAPPED so that scrub/repair can revisit the attr fork
block map. If the fork has been reset to an empty state and removed,
BMBTA repair has no attr fork mappings to rebuild and can return success.
The post-repair scrub then runs with XREP_ALREADY_FIXED set, which means
xchk_file_looks_zapped() deliberately ignores the stale zapped health bit
and asks xchk_bmap() to check the current attr fork. For an absent attr
fork, xchk_bmap() returns -ENOENT. Returning that error prevents
xchk_bmap_attr() from marking XFS_SICK_INO_BMBTA_ZAPPED healthy, leaving
the zapped health state behind even though there are no attr fork mappings
left to check.
Treat -ENOENT during post-repair BMBTA revalidation as a clean result for
the zapped attr fork: clear XFS_SICK_INO_BMBTA_ZAPPED and return success.
Keep the existing -ENOENT behavior for ordinary scrubs of absent attr
forks.
Fixes: d9041681dd ("xfs: set inode sick state flags when we zap either ondisk fork")
Cc: stable@vger.kernel.org # v6.8
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Signed-off-by: Qiang Ma <maqianga@uniontech.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
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