1FAN_MARK_ADD 0x00000001
2FAN_MARK_REMOVE 0x00000002
3FAN_MARK_DONT_FOLLOW 0x00000004
4FAN_MARK_ONLYDIR 0x00000008
5FAN_MARK_MOUNT 0x00000010
6FAN_MARK_IGNORED_MASK 0x00000020
7FAN_MARK_IGNORED_SURV_MODIFY 0x00000040
8FAN_MARK_FLUSH 0x00000080
9