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| author | Eric Sandeen <sandeen@redhat.com> | 2017-11-27 18:23:33 -0800 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2017-11-28 08:57:11 -0800 |
| commit | 712d361d59efa6349a9538f4fd9a49073f0e8127 (patch) | |
| tree | ccf0021f560ed2c56c6d91b99f662c2792aa4445 /fs | |
| parent | eda6bc27ccc852d34393739009486932f3ba70ae (diff) | |
| download | lwn-712d361d59efa6349a9538f4fd9a49073f0e8127.tar.gz lwn-712d361d59efa6349a9538f4fd9a49073f0e8127.zip | |
xfs: calculate correct offset in xfs_scrub_quota_item
It's only used for tracepoints so it's relatively harmless,
but the offset is calculated incorrectly in xfs_scrub_quota_item.
qi_dqperchunk is the nr. of dquots per "chunk" which we have
conveniently *cough* defined to always be 1 FSB. Therefore
block_offset * qi_dqperchunk == first id in that chunk,
and so offset = id / qi_dqperchunk
id * dqperchunk is ... meaningless.
Fixes-coverity-id: 1423965
Fixes: c2fc338c ("xfs: scrub quota information")
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/xfs/scrub/quota.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xfs/scrub/quota.c b/fs/xfs/scrub/quota.c index 613def9692a1..3d9037eceaf1 100644 --- a/fs/xfs/scrub/quota.c +++ b/fs/xfs/scrub/quota.c @@ -107,7 +107,7 @@ xfs_scrub_quota_item( unsigned long long rcount; xfs_ino_t fs_icount; - offset = id * qi->qi_dqperchunk; + offset = id / qi->qi_dqperchunk; /* * We fed $id and DQNEXT into the xfs_qm_dqget call, which means |