I think it would be useful to see the source code for AUFS2 posted to LKML. One of the questions I have not which doesn't seem to be addressed in these documents is how robust is your xattr support and are you making the appropriate LSM calls to make this usable with SELinux and Smack. Also from a labeling perspective you have a very interesting question of which label do you select when unifying directories. If you have a/foo and b/foo each with different labels which do you choose. Based on the history of Union type file systems I would suspect the answer is whichever branch is listed first. Dave -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html