FAN_MARK_ADD 0x00000001
FAN_MARK_REMOVE 0x00000002
FAN_MARK_DONT_FOLLOW 0x00000004
FAN_MARK_ONLYDIR 0x00000008
FAN_MARK_MOUNT 0x00000010
FAN_MARK_IGNORED_MASK 0x00000020
FAN_MARK_IGNORED_SURV_MODIFY 0x00000040
FAN_MARK_FLUSH 0x00000080