It's more like a bind mount of a directory, as far as what's going on under the hood. I take it it's possible to delete a directory that is bind mounted elsewhere? I'm not sure what happens though.
Chris Murphy -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html