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>

1 files changed, 15 insertions, 15 deletions

diff --git a/fs/xfs/xfs_symlink.c b/fs/xfs/xfs_symlink.c
index c2c8173d1634..6a944a2cd36f 100644
--- a/fs/xfs/xfs_symlink.c
+++ b/fs/xfs/xfs_symlink.c
@@ -76,15 +76,15 @@ xfs_readlink_bmap(
 		bp = xfs_buf_read(mp->m_ddev_targp, d, BTOBB(byte_cnt), 0,
 				  &xfs_symlink_buf_ops);
 		if (!bp)
-			return ENOMEM;
+			return -ENOMEM;
 		error = bp->b_error;
 		if (error) {
 			xfs_buf_ioerror_alert(bp, __func__);
 			xfs_buf_relse(bp);
 
 			/* bad CRC means corrupted metadata */
-			if (error == EFSBADCRC)
-				error = EFSCORRUPTED;
+			if (error == -EFSBADCRC)
+				error = -EFSCORRUPTED;
 			goto out;
 		}
 		byte_cnt = XFS_SYMLINK_BUF_SPACE(mp, byte_cnt);
@@ -95,7 +95,7 @@ xfs_readlink_bmap(
 		if (xfs_sb_version_hascrc(&mp->m_sb)) {
 			if (!xfs_symlink_hdr_ok(ip->i_ino, offset,
 							byte_cnt, bp)) {
-				error = EFSCORRUPTED;
+				error = -EFSCORRUPTED;
 				xfs_alert(mp,
 "symlink header does not match required off/len/owner (0x%x/Ox%x,0x%llx)",
 					offset, byte_cnt, ip->i_ino);
@@ -135,7 +135,7 @@ xfs_readlink(
 	trace_xfs_readlink(ip);
 
 	if (XFS_FORCED_SHUTDOWN(mp))
-		return EIO;
+		return -EIO;
 
 	xfs_ilock(ip, XFS_ILOCK_SHARED);
 
@@ -148,7 +148,7 @@ xfs_readlink(
 			 __func__, (unsigned long long) ip->i_ino,
 			 (long long) pathlen);
 		ASSERT(0);
-		error = EFSCORRUPTED;
+		error = -EFSCORRUPTED;
 		goto out;
 	}
 
@@ -203,14 +203,14 @@ xfs_symlink(
 	trace_xfs_symlink(dp, link_name);
 
 	if (XFS_FORCED_SHUTDOWN(mp))
-		return EIO;
+		return -EIO;
 
 	/*
 	 * Check component lengths of the target path name.
 	 */
 	pathlen = strlen(target_path);
 	if (pathlen >= MAXPATHLEN)      /* total string too long */
-		return ENAMETOOLONG;
+		return -ENAMETOOLONG;
 
 	udqp = gdqp = NULL;
 	prid = xfs_get_initial_prid(dp);
@@ -238,7 +238,7 @@ xfs_symlink(
 		fs_blocks = xfs_symlink_blocks(mp, pathlen);
 	resblks = XFS_SYMLINK_SPACE_RES(mp, link_name->len, fs_blocks);
 	error = xfs_trans_reserve(tp, &M_RES(mp)->tr_symlink, resblks, 0);
-	if (error == ENOSPC && fs_blocks == 0) {
+	if (error == -ENOSPC && fs_blocks == 0) {
 		resblks = 0;
 		error = xfs_trans_reserve(tp, &M_RES(mp)->tr_symlink, 0, 0);
 	}
@@ -254,7 +254,7 @@ xfs_symlink(
 	 * Check whether the directory allows new symlinks or not.
 	 */
 	if (dp->i_d.di_flags & XFS_DIFLAG_NOSYMLINKS) {
-		error = EPERM;
+		error = -EPERM;
 		goto error_return;
 	}
 
@@ -284,7 +284,7 @@ xfs_symlink(
 	error = xfs_dir_ialloc(&tp, dp, S_IFLNK | (mode & ~S_IFMT), 1, 0,
 			       prid, resblks > 0, &ip, NULL);
 	if (error) {
-		if (error == ENOSPC)
+		if (error == -ENOSPC)
 			goto error_return;
 		goto error1;
 	}
@@ -348,7 +348,7 @@ xfs_symlink(
 			bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, d,
 					       BTOBB(byte_cnt), 0);
 			if (!bp) {
-				error = ENOMEM;
+				error = -ENOMEM;
 				goto error2;
 			}
 			bp->b_ops = &xfs_symlink_buf_ops;
@@ -489,7 +489,7 @@ xfs_inactive_symlink_rmt(
 			XFS_FSB_TO_DADDR(mp, mval[i].br_startblock),
 			XFS_FSB_TO_BB(mp, mval[i].br_blockcount), 0);
 		if (!bp) {
-			error = ENOMEM;
+			error = -ENOMEM;
 			goto error_bmap_cancel;
 		}
 		xfs_trans_binval(tp, bp);
@@ -562,7 +562,7 @@ xfs_inactive_symlink(
 	trace_xfs_inactive_symlink(ip);
 
 	if (XFS_FORCED_SHUTDOWN(mp))
-		return EIO;
+		return -EIO;
 
 	xfs_ilock(ip, XFS_ILOCK_EXCL);
 
@@ -580,7 +580,7 @@ xfs_inactive_symlink(
 			 __func__, (unsigned long long)ip->i_ino, pathlen);
 		xfs_iunlock(ip, XFS_ILOCK_EXCL);
 		ASSERT(0);
-		return EFSCORRUPTED;
+		return -EFSCORRUPTED;
 	}
 
 	if (ip->i_df.if_flags & XFS_IFINLINE) {