Hello, I'm no expert, but I think that you should read i_node.i_flags and check it for the flag EXT4_EXTENTS_FL to determine which inodes use the old or the new (extents) method of allocation. I'm not sure what your objective is, so hopefully this helps something =) -- Felipe Monteiro de Carvalho -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html