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path: root/fs/xfs/scrub/refcount.c
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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>
2018-12-12xfs: const-ify xfs_owner_info argumentsDarrick J. Wong
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. 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_scrub_ prefixDarrick J. Wong
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>
2018-06-06xfs: 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>
2018-05-15xfs: skip scrub xref if corruption already notedDarrick J. Wong
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>
2018-05-15xfs: clean up scrub usage of KM_NOFSDarrick J. Wong
All scrub code runs in transaction context, which means that memory allocations are automatically run in PF_MEMALLOC_NOFS context. It's therefore unnecessary to pass in KM_NOFS to allocation routines, so clean them all out. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2018-01-17xfs: cross-reference refcount btree during scrubDarrick J. Wong
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>
2018-01-17xfs: cross-reference the rmapbt data with the refcountbtDarrick J. Wong
Cross reference the refcount data with the rmap data to check that the number of rmaps for a given block match the refcount of that block, and that CoW blocks (which are owned entirely by the refcountbt) are tracked as well. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
2018-01-17xfs: cross-reference inode btrees during scrubDarrick J. Wong
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>
2018-01-17xfs: cross-reference with the bnobtDarrick J. Wong
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>
2018-01-17xfs: introduce scrubber cross-referencing stubsDarrick J. Wong
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>
2017-10-26xfs: scrub refcount btreesDarrick J. Wong
Plumb in the pieces necessary to check the refcount btree. If rmap is available, check the reference count by performing an interval query against the rmapbt. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>