xfs: remove xfs_attr_shortform_lookup

xfs_attr_shortform_lookup is only used by xfs_attr_shortform_addname,
which is much better served by calling xfs_attr_sf_findname.  Switch
it over and remove xfs_attr_shortform_lookup.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>

Author: Christoph Hellwig

fs/xfs/libxfs/xfs_attr.c

@@ -1066,19 +1066,14 @@ xfs_attr_shortform_addname(
 	struct xfs_da_args	*args)
 {
 	int			newsize, forkoff;
-	int			error;
 
 	trace_xfs_attr_sf_addname(args);
 
-	error = xfs_attr_shortform_lookup(args);
-	switch (error) {
-	case -ENOATTR:
-		if (args->op_flags & XFS_DA_OP_REPLACE)
-			return error;
-		break;
-	case -EEXIST:
+	if (xfs_attr_sf_findname(args)) {
+		int		error;
+
 		if (!(args->op_flags & XFS_DA_OP_REPLACE))
-			return error;
+			return -EEXIST;
 
 		error = xfs_attr_sf_removename(args);
 		if (error)
@@ -1091,11 +1086,9 @@ xfs_attr_shortform_addname(
 		 * around.
 		 */
 		args->op_flags &= ~XFS_DA_OP_REPLACE;
-		break;
-	case 0:
-		break;
-	default:
-		return error;
+	} else {
+		if (args->op_flags & XFS_DA_OP_REPLACE)
+			return -ENOATTR;
 	}
 
 	if (args->namelen >= XFS_ATTR_SF_ENTSIZE_MAX ||

fs/xfs/libxfs/xfs_attr_leaf.c

@@ -837,30 +837,6 @@ xfs_attr_sf_removename(
 	return 0;
 }
 
-/*
- * Look up a name in a shortform attribute list structure.
- */
-/*ARGSUSED*/
-int
-xfs_attr_shortform_lookup(
-	struct xfs_da_args		*args)
-{
-	struct xfs_ifork		*ifp = &args->dp->i_af;
-	struct xfs_attr_shortform	*sf = ifp->if_data;
-	struct xfs_attr_sf_entry	*sfe;
-	int				i;
-
-	ASSERT(ifp->if_format == XFS_DINODE_FMT_LOCAL);
-	sfe = &sf->list[0];
-	for (i = 0; i < sf->hdr.count;
-				sfe = xfs_attr_sf_nextentry(sfe), i++) {
-		if (xfs_attr_match(args, sfe->namelen, sfe->nameval,
-				sfe->flags))
-			return -EEXIST;
-	}
-	return -ENOATTR;
-}
-
 /*
  * Retrieve the attribute value and length.
  *

fs/xfs/libxfs/xfs_attr_leaf.h

@@ -47,7 +47,6 @@ struct xfs_attr3_icleaf_hdr {
  */
 void	xfs_attr_shortform_create(struct xfs_da_args *args);
 void	xfs_attr_shortform_add(struct xfs_da_args *args, int forkoff);
-int	xfs_attr_shortform_lookup(struct xfs_da_args *args);
 int	xfs_attr_shortform_getvalue(struct xfs_da_args *args);
 int	xfs_attr_shortform_to_leaf(struct xfs_da_args *args);
 int	xfs_attr_sf_removename(struct xfs_da_args *args);