Yes, i know this topic has been discussed for many times. However, i am still not clear about the real reason. So which is the reason? 1. it's by design, intentional 2. unclear logic, for example, whether to remove the directory after the last file in it is deleted 3. hard work, no one has picked it yet 4. hardly done in current model Ping Yin -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html