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libxfs: bad magic number should set da block buffer error

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If xfs_da3_node_read_verify() doesn't recognize the magic number of a
buffer it's just read, set the buffer error to -EFSCORRUPTED so that
the error can be sent up to userspace.  Without this patch we'll
notice the bad magic eventually while trying to traverse or change
the block, but we really ought to fail early in the verifier.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Darrick J. Wong 2015-08-28 14:50:03 +10:00 committed by Dave Chinner
parent bc0195aad0
commit dfdd4ac66c
1 changed files with 1 additions and 0 deletions
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1
fs/xfs/libxfs/xfs_da_btree.c
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@ -233,6 +233,7 @@ xfs_da3_node_read_verify(
bp->b_ops->verify_read(bp);
return;
default:
xfs_buf_ioerror(bp, -EFSCORRUPTED);
break;
}