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xfs: have buffer verifier functions report failing address

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Modify each function that checks the contents of a metadata buffer to
return the instruction address of the failing test so that we can report
more precise failure errors to the log.

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
2018-01-08 10:51:03 -08:00
parent 31ca03c92c
commit a6a781a58b
21 changed files with 323 additions and 275 deletions
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20
fs/xfs/libxfs/xfs_refcount_btree.c
View File

@@ -223,29 +223,31 @@ xfs_refcountbt_diff_two_keys(
be32_to_cpu(k2->refc.rc_startblock);
}
STATIC bool
STATIC xfs_failaddr_t
xfs_refcountbt_verify(
struct xfs_buf *bp)
{
struct xfs_mount *mp = bp->b_target->bt_mount;
struct xfs_btree_block *block = XFS_BUF_TO_BLOCK(bp);
struct xfs_perag *pag = bp->b_pag;
xfs_failaddr_t fa;
unsigned int level;
if (block->bb_magic != cpu_to_be32(XFS_REFC_CRC_MAGIC))
return false;
return __this_address;
if (!xfs_sb_version_hasreflink(&mp->m_sb))
return false;
if (!xfs_btree_sblock_v5hdr_verify(bp))
return false;
return __this_address;
fa = xfs_btree_sblock_v5hdr_verify(bp);
if (fa)
return fa;
level = be16_to_cpu(block->bb_level);
if (pag && pag->pagf_init) {
if (level >= pag->pagf_refcount_level)
return false;
return __this_address;
} else if (level >= mp->m_refc_maxlevels)
return false;
return __this_address;
return xfs_btree_sblock_verify(bp, mp->m_refc_mxr[level != 0]);
}
@@ -256,7 +258,7 @@ xfs_refcountbt_read_verify(
{
if (!xfs_btree_sblock_verify_crc(bp))
xfs_verifier_error(bp, -EFSBADCRC);
else if (!xfs_refcountbt_verify(bp))
else if (xfs_refcountbt_verify(bp))
xfs_verifier_error(bp, -EFSCORRUPTED);
if (bp->b_error)
@@ -267,7 +269,7 @@ STATIC void
xfs_refcountbt_write_verify(
struct xfs_buf *bp)
{
if (!xfs_refcountbt_verify(bp)) {
if (xfs_refcountbt_verify(bp)) {
trace_xfs_btree_corrupt(bp, _RET_IP_);
xfs_verifier_error(bp, -EFSCORRUPTED);
return;