xfs: Add xfs_attr_node_remove_name

This patch pulls a new helper function xfs_attr_node_remove_name out
of xfs_attr_node_remove_step.  This helps to modularize
xfs_attr_node_remove_step which will help make the delayed attribute
code easier to follow
Signed-off-by: Allison Henderson <allison.henderson@oracle.com>
Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Brian Foster <bfoster@redhat.com>

fs/xfs/libxfs/xfs_attr.c

@@ -1214,6 +1214,25 @@ int xfs_attr_node_removename_setup(
 	return 0;
 }
 
+STATIC int
+xfs_attr_node_remove_name(
+	struct xfs_da_args	*args,
+	struct xfs_da_state	*state)
+{
+	struct xfs_da_state_blk	*blk;
+	int			retval;
+
+	/*
+	 * Remove the name and update the hashvals in the tree.
+	 */
+	blk = &state->path.blk[state->path.active-1];
+	ASSERT(blk->magic == XFS_ATTR_LEAF_MAGIC);
+	retval = xfs_attr3_leaf_remove(blk->bp, args);
+	xfs_da3_fixhashpath(state, &state->path);
+
+	return retval;
+}
+
 /*
  * Remove a name from a B-tree attribute list.
  *
@@ -1226,7 +1245,6 @@ xfs_attr_node_removename(
 	struct xfs_da_args	*args)
 {
 	struct xfs_da_state	*state;
-	struct xfs_da_state_blk	*blk;
 	int			retval, error;
 	struct xfs_inode	*dp = args->dp;
 
@@ -1254,14 +1272,7 @@ xfs_attr_node_removename(
 		if (error)
 			goto out;
 	}
-
-	/*
-	 * Remove the name and update the hashvals in the tree.
-	 */
-	blk = &state->path.blk[ state->path.active-1 ];
-	ASSERT(blk->magic == XFS_ATTR_LEAF_MAGIC);
-	retval = xfs_attr3_leaf_remove(blk->bp, args);
-	xfs_da3_fixhashpath(state, &state->path);
+	retval = xfs_attr_node_remove_name(args, state);
 
 	/*
 	 * Check to see if the tree needs to be collapsed.