I still can't make any sense of this description. What is an external agent? Userspace obviously can't ever see a change in the extent map, so it can't be meant. It would help a lot if you could come up with a concrete user for this, including example code. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
