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path: root/fs/xfs/scrub/agheader_repair.c
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2019-02-11xfs: use buf ops magic to detect btree block typeDarrick J. Wong
Now that we encode block magic numbers in all the buffer ops, use that for block type detection in the ag header repair code instead of encoding magics directly in the repair code. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-02-11xfs: split up allocation btree verifierBrian Foster
Similar to the inode btree verifier, the same allocation btree verifier structure is shared between the by-bno (bnobt) and by-size (cntbt) btrees. This prevents the ability to distinguish magic values between them. Separate the verifier into two, one for each tree, and assign them appropriately. No functional changes. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2019-02-11xfs: create a separate finobt verifierBrian Foster
The inobt verifier is reused for the inobt and finobt, which prevents the ability to distinguish between magic values on a per-tree basis. Create a separate finobt structure in preparation for changes to enforce the appropriate magic value for the associated tree. This patch has no functional change. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2018-12-12xfs: remove xfs_rmap_ag_owner and friendsDarrick J. Wong
Owner information for static fs metadata can be defined readonly at build time because it never changes across filesystems. This enables us to reduce stack usage (particularly in scrub) because we can use the statically defined oinfo structures. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2018-08-10xfs: repair the AGIDarrick J. Wong
Rebuild the AGI header items with some help from the rmapbt. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2018-08-10xfs: repair the AGFLDarrick J. Wong
Repair the AGFL from the rmap data. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2018-08-10xfs: repair the AGFDarrick J. Wong
Regenerate the AGF from the rmap data. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2018-07-23xfs: fix indentation and other whitespace problems in scrub/repairDarrick J. Wong
Now that we've shortened everything, fix up all the indentation and whitespace problems. There are no functional changes. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2018-07-23xfs: shorten struct xfs_scrub_context to struct xfs_scrubDarrick J. Wong
Shorten the name of the online fsck context structure. Whitespace damage will be fixed by a subsequent patch. There are no functional changes. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2018-07-23xfs: shorten xfs_repair_ prefix to xrep_Darrick J. Wong
Shorten all the metadata repair xfs_repair_* symbols to xrep_. Whitespace damage will be fixed by a subsequent patch. There are no functional changes. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2018-06-06xfs: convert to SPDX license tagsDave Chinner
Remove the verbose license text from XFS files and replace them with SPDX tags. This does not change the license of any of the code, merely refers to the common, up-to-date license files in LICENSES/ This change was mostly scripted. fs/xfs/Makefile and fs/xfs/libxfs/xfs_fs.h were modified by hand, the rest were detected and modified by the following command: for f in `git grep -l "GNU General" fs/xfs/` ; do echo $f cat $f | awk -f hdr.awk > $f.new mv -f $f.new $f done And the hdr.awk script that did the modification (including detecting the difference between GPL-2.0 and GPL-2.0+ licenses) is as follows: $ cat hdr.awk BEGIN { hdr = 1.0 tag = "GPL-2.0" str = "" } /^ \* This program is free software/ { hdr = 2.0; next } /any later version./ { tag = "GPL-2.0+" next } /^ \*\// { if (hdr > 0.0) { print "// SPDX-License-Identifier: " tag print str print $0 str="" hdr = 0.0 next } print $0 next } /^ \* / { if (hdr > 1.0) next if (hdr > 0.0) { if (str != "") str = str "\n" str = str $0 next } print $0 next } /^ \*/ { if (hdr > 0.0) next print $0 next } // { if (hdr > 0.0) { if (str != "") str = str "\n" str = str $0 next } print $0 } END { } $ Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2018-05-30xfs: repair superblocksDarrick J. Wong
If one of the backup superblocks is found to differ seriously from superblock 0, write out a fresh copy from the in-core sb. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Allison Henderson <allison.henderson@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>