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xfs: don't assert on corrupted unlinked inode list 

Use the per-ag inode number verifiers to detect corrupt lists and error
out, instead of using ASSERTs.

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 2018-06-04 11:27:51 -07:00
parent 2551a53053
commit d2e7366542
1 changed files with 14 additions and 5 deletions
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19
fs/xfs/xfs_inode.c
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@ -2090,10 +2090,15 @@ xfs_iunlink_remove(
* list this inode will go on.
*/
agino = XFS_INO_TO_AGINO(mp, ip->i_ino);
ASSERT(agino != 0);
if (!xfs_verify_agino(mp, agno, agino))
return -EFSCORRUPTED;
bucket_index = agino % XFS_AGI_UNLINKED_BUCKETS;
ASSERT(agi->agi_unlinked[bucket_index] != cpu_to_be32(NULLAGINO));
ASSERT(agi->agi_unlinked[bucket_index]);
if (!xfs_verify_agino(mp, agno,
be32_to_cpu(agi->agi_unlinked[bucket_index]))) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp,
agi, sizeof(*agi));
return -EFSCORRUPTED;
}
if (be32_to_cpu(agi->agi_unlinked[bucket_index]) == agino) {
/*
@ -2171,8 +2176,12 @@ xfs_iunlink_remove(
last_offset = imap.im_boffset;
next_agino = be32_to_cpu(last_dip->di_next_unlinked);
ASSERT(next_agino != NULLAGINO);
ASSERT(next_agino != 0);
if (!xfs_verify_agino(mp, agno, next_agino)) {
XFS_CORRUPTION_ERROR(__func__,
XFS_ERRLEVEL_LOW, mp,
last_dip, sizeof(*last_dip));
return -EFSCORRUPTED;
}
}
/*