xfs: actually rebuild the parent pointer xattrs

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Once we've assembled all the parent pointers for a file, we need to
commit the new dataset atomically to that file.  Parent pointer records
are embedded in the xattr structure, which means that we must write a
new extended attribute structure, again, atomically.  Therefore, we must
copy the non-parent-pointer attributes from the file being repaired into
the temporary file's extended attributes and then call the atomic extent
swap mechanism to exchange the blocks.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>

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This commit is contained in:

Darrick J. Wong 2024-04-22 09:48:16 -07:00

parent 6efbbdeb14

commit a26dc21309

7 changed files with 701 additions and 23 deletions

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2

fs/xfs/libxfs/xfs_attr.c

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fs/xfs/libxfs/xfs_attr.h

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fs/xfs/scrub/attr_repair.c

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fs/xfs/scrub/attr_repair.h

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fs/xfs/scrub/findparent.c

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fs/xfs/scrub/parent_repair.c

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fs/xfs/scrub/trace.h

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