#define IOC_REQUEST_GETATTR _IOWR('f', 30, long)
#define IOC_REQUEST_READPAGE _IOWR('f', 31, long)
#define IOC_REQUEST_SETATTR _IOWR('f', 32, long)
#define IOC_REQUEST_GETATTR _IOWR('f', 30, long)
#define IOC_REQUEST_READPAGE _IOWR('f', 31, long)
#define IOC_REQUEST_SETATTR _IOWR('f', 32, long)