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xfs: cross-reference reverse-mapping btree

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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>
This commit is contained in:
Darrick J. Wong
2018-01-16 18:53:08 -08:00
parent 2e6f27561b
commit d852657ccf
10 changed files with 440 additions and 4 deletions
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4
fs/xfs/scrub/inode.c
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@@ -36,6 +36,7 @@
#include "xfs_ialloc.h"
#include "xfs_da_format.h"
#include "xfs_reflink.h"
#include "xfs_rmap.h"
#include "scrub/xfs_scrub.h"
#include "scrub/scrub.h"
#include "scrub/common.h"
@@ -632,6 +633,7 @@ xfs_scrub_inode_xref(
xfs_ino_t ino,
struct xfs_dinode *dip)
{
struct xfs_owner_info oinfo;
xfs_agnumber_t agno;
xfs_agblock_t agbno;
int error;
@@ -648,6 +650,8 @@ xfs_scrub_inode_xref(
xfs_scrub_xref_is_used_space(sc, agbno, 1);
xfs_scrub_inode_xref_finobt(sc, ino);
xfs_rmap_ag_owner(&oinfo, XFS_RMAP_OWN_INODES);
xfs_scrub_xref_is_owned_by(sc, agbno, 1, &oinfo);
xfs_scrub_ag_free(sc, &sc->sa);
}