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b1991ee3 |
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15-Apr-2024 |
Darrick J. Wong <djwong@kernel.org> |
xfs: online repair of directories If a directory looks like it's in bad shape, try to sift through the rubble to find whatever directory entries we can, scan the directory tree for the parent (if needed), stage the new directory contents in a temporary file and use the atomic extent swapping mechanism to commit the results in bulk. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
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629fdaf5 |
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15-Apr-2024 |
Darrick J. Wong <djwong@kernel.org> |
xfs: use atomic extent swapping to fix user file fork data Build on the code that was recently added to the temporary repair file code so that we can atomically switch the contents of any file fork, even if the fork is in local format. The upcoming functions to repair xattrs, directories, and symlinks will need that capability. Repair can lock out access to these user files by holding IOLOCK_EXCL on these user files. Therefore, it is safe to drop the ILOCK of both the file being repaired and the tempfile being used for staging, and cancel the scrub transaction. We do this so that we can reuse the resource estimation and transaction allocation functions used by a regular file exchange operation. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
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e81ce424 |
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15-Apr-2024 |
Darrick J. Wong <djwong@kernel.org> |
xfs: support preallocating and copying content into temporary files Create the routines we need to preallocate space in a temporary ondisk file and then copy the contents of an xfile into the tempfile. The upcoming rtsummary repair feature will construct the contents of a realtime summary file in memory, after which it will want to copy all that into the ondisk temporary file before atomically committing the new rtsummary contents. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
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84c14ee3 |
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15-Apr-2024 |
Darrick J. Wong <djwong@kernel.org> |
xfs: create temporary files and directories for online repair Teach the online repair code how to create temporary files or directories. These temporary files can be used to stage reconstructed information until we're ready to perform an atomic extent swap to commit the new metadata. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de>
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