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path: root/fs/xfs/scrub/rmap.c
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2018-12-12xfs: remove xfs_rmap_ag_owner and friendsDarrick J. Wong1-4/+1
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>
2018-12-12xfs: const-ify xfs_owner_info argumentsDarrick J. Wong1-15/+15
Only certain functions actually change the contents of an xfs_owner_info; the rest can accept a const struct pointer. This will enable us to save stack space by hoisting static owner info types to be const global variables. 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. Wong1-39/+39
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. Wong1-8/+8
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_scrub_ prefixDarrick J. Wong1-39/+39
Shorten all the metadata checking xfs_scrub_ prefixes to xchk_. After this, the only xfs_scrub* symbols are the ones that pertain to both scrub and repair. Whitespace damage will be fixed in 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>
2018-06-07xfs: convert to SPDX license tagsDave Chinner1-15/+1
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>
2018-05-16xfs: skip scrub xref if corruption already notedDarrick J. Wong1-3/+3
Don't bother looking for cross-referencing problems if the metadata is already corrupt or we've already found a cross-referencing problem. Since we added a helper function for flags testing, convert existing users to use it. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2018-01-18xfs: cross-reference refcount btree during scrubDarrick J. Wong1-0/+37
During metadata btree scrub, we should cross-reference with the reference counts. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
2018-01-18xfs: cross-reference reverse-mapping btreeDarrick J. Wong1-0/+65
When scrubbing various btrees, we should cross-reference the records with the reverse mapping btree and ensure that traversing the btree finds the same number of blocks that the rmapbt thinks are owned by that btree. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
2018-01-18xfs: cross-reference inode btrees during scrubDarrick J. Wong1-0/+4
Cross-reference the inode btrees with the other metadata when we scrub the filesystem. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
2018-01-18xfs: cross-reference with the bnobtDarrick J. Wong1-0/+5
When we're scrubbing various btrees, cross-reference the records with the bnobt to ensure that we don't also think the space is free. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
2018-01-18xfs: introduce scrubber cross-referencing stubsDarrick J. Wong1-0/+12
Create some stubs that will be used to cross-reference metadata records. The actual cross-referencing will be filled in by subsequent patches. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
2017-10-27xfs: scrub rmap btreesDarrick J. Wong1-0/+138
Check the reverse mapping records to make sure that the contents make sense. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>