2.4 reiserfs fix for truncate to update mtime.

@@ -1700,8 +1700,7 @@
     }
 
     if ( n_file_size == 0 || n_file_size < n_new_file_size ) {
-	pathrelse(&s_search_path);
-	return;
+	goto update_and_out ;
     }
 
     /* Update key to search for the last file item. */

@@ -1754,6 +1753,7 @@
 	    "PAP-5680: truncate did not finish: new_file_size %Ld, current %Ld, oid %d\n",
 	    n_new_file_size, n_file_size, s_item_key.on_disk_key.k_objectid);
 
+update_and_out:
     if (update_timestamps) {
 	// this is truncate, not file closing
 	p_s_inode->i_mtime = p_s_inode->i_ctime = CURRENT_TIME;