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xfs: modify verifiers to differentiate CRC from other errors

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Modify all read & write verifiers to differentiate
between CRC errors and other inconsistencies.

This sets the appropriate error number on bp->b_error,
and then calls xfs_verifier_error() if something went
wrong.  That function will issue the appropriate message
to the user.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Eric Sandeen
2014-02-27 15:23:10 +11:00
committed by Dave Chinner
parent db9355c296
commit ce5028cfe3
16 changed files with 125 additions and 117 deletions
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14
fs/xfs/xfs_dir2_leaf.c
View File

@@ -179,12 +179,14 @@ __read_verify(
{
struct xfs_mount *mp = bp->b_target->bt_mount;
if ((xfs_sb_version_hascrc(&mp->m_sb) &&
!xfs_buf_verify_cksum(bp, XFS_DIR3_LEAF_CRC_OFF)) ||
!xfs_dir3_leaf_verify(bp, magic)) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, bp->b_addr);
if (xfs_sb_version_hascrc(&mp->m_sb) &&
!xfs_buf_verify_cksum(bp, XFS_DIR3_LEAF_CRC_OFF))
xfs_buf_ioerror(bp, EFSBADCRC);
else if (!xfs_dir3_leaf_verify(bp, magic))
xfs_buf_ioerror(bp, EFSCORRUPTED);
}
if (bp->b_error)
xfs_verifier_error(bp);
}
static void
@@ -197,8 +199,8 @@ __write_verify(
struct xfs_dir3_leaf_hdr *hdr3 = bp->b_addr;
if (!xfs_dir3_leaf_verify(bp, magic)) {
XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, bp->b_addr);
xfs_buf_ioerror(bp, EFSCORRUPTED);
xfs_verifier_error(bp);
return;
}