From: Dave Chinner <dchinner@redhat.com>
Date: Wed, 25 Jun 2014 04:58:08 +0000 (+1000)
Subject: xfs: global error sign conversion
X-Git-Tag: cleanup-for-v3.18~42^2~11^2
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2451337dd043901b5270b7586942abe564443e3d;p=pandora-kernel.git

xfs: global error sign conversion

Convert all the errors the core XFs code to negative error signs
like the rest of the kernel and remove all the sign conversion we
do in the interface layers.

Errors for conversion (and comparison) found via searches like:

$ git grep " E" fs/xfs
$ git grep "return E" fs/xfs
$ git grep " E[A-Z].*;$" fs/xfs

Negation points found via searches like:

$ git grep "= -[a-z,A-Z]" fs/xfs
$ git grep "return -[a-z,A-D,F-Z]" fs/xfs
$ git grep " -[a-z].*;" fs/xfs

[ with some bits I missed from Brian Foster ]

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
---

diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c
index d43813267a80..4bffffe038a1 100644
--- a/fs/xfs/libxfs/xfs_alloc.c
+++ b/fs/xfs/libxfs/xfs_alloc.c
@@ -483,9 +483,9 @@ xfs_agfl_read_verify(
 		return;
 
 	if (!xfs_buf_verify_cksum(bp, XFS_AGFL_CRC_OFF))
-		xfs_buf_ioerror(bp, EFSBADCRC);
+		xfs_buf_ioerror(bp, -EFSBADCRC);
 	else if (!xfs_agfl_verify(bp))
-		xfs_buf_ioerror(bp, EFSCORRUPTED);
+		xfs_buf_ioerror(bp, -EFSCORRUPTED);
 
 	if (bp->b_error)
 		xfs_verifier_error(bp);
@@ -503,7 +503,7 @@ xfs_agfl_write_verify(
 		return;
 
 	if (!xfs_agfl_verify(bp)) {
-		xfs_buf_ioerror(bp, EFSCORRUPTED);
+		xfs_buf_ioerror(bp, -EFSCORRUPTED);
 		xfs_verifier_error(bp);
 		return;
 	}
@@ -559,7 +559,7 @@ xfs_alloc_update_counters(
 	xfs_trans_agblocks_delta(tp, len);
 	if (unlikely(be32_to_cpu(agf->agf_freeblks) >
 		     be32_to_cpu(agf->agf_length)))
-		return EFSCORRUPTED;
+		return -EFSCORRUPTED;
 
 	xfs_alloc_log_agf(tp, agbp, XFS_AGF_FREEBLKS);
 	return 0;
@@ -2234,11 +2234,11 @@ xfs_agf_read_verify(
 
 	if (xfs_sb_version_hascrc(&mp->m_sb) &&
 	    !xfs_buf_verify_cksum(bp, XFS_AGF_CRC_OFF))
-		xfs_buf_ioerror(bp, EFSBADCRC);
+		xfs_buf_ioerror(bp, -EFSBADCRC);
 	else if (XFS_TEST_ERROR(!xfs_agf_verify(mp, bp), mp,
 				XFS_ERRTAG_ALLOC_READ_AGF,
 				XFS_RANDOM_ALLOC_READ_AGF))
-		xfs_buf_ioerror(bp, EFSCORRUPTED);
+		xfs_buf_ioerror(bp, -EFSCORRUPTED);
 
 	if (bp->b_error)
 		xfs_verifier_error(bp);
@@ -2252,7 +2252,7 @@ xfs_agf_write_verify(
 	struct xfs_buf_log_item	*bip = bp->b_fspriv;
 
 	if (!xfs_agf_verify(mp, bp)) {
-		xfs_buf_ioerror(bp, EFSCORRUPTED);
+		xfs_buf_ioerror(bp, -EFSCORRUPTED);
 		xfs_verifier_error(bp);
 		return;
 	}
@@ -2601,11 +2601,11 @@ xfs_free_extent(
 	 */
 	args.agno = XFS_FSB_TO_AGNO(args.mp, bno);
 	if (args.agno >= args.mp->m_sb.sb_agcount)
-		return EFSCORRUPTED;
+		return -EFSCORRUPTED;
 
 	args.agbno = XFS_FSB_TO_AGBNO(args.mp, bno);
 	if (args.agbno >= args.mp->m_sb.sb_agblocks)
-		return EFSCORRUPTED;
+		return -EFSCORRUPTED;
 
 	args.pag = xfs_perag_get(args.mp, args.agno);
 	ASSERT(args.pag);
@@ -2617,7 +2617,7 @@ xfs_free_extent(
 	/* validate the extent size is legal now we have the agf locked */
 	if (args.agbno + len >
 			be32_to_cpu(XFS_BUF_TO_AGF(args.agbp)->agf_length)) {
-		error = EFSCORRUPTED;
+		error = -EFSCORRUPTED;
 		goto error0;
 	}
 
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