F_SET_RW_HINT 53 include/uapi/linux/fcntl.h #define F_SET_RW_HINT (F_LINUX_SPECIFIC_BASE + 12) F_SET_RW_HINT 53 tools/include/uapi/linux/fcntl.h #define F_SET_RW_HINT (F_LINUX_SPECIFIC_BASE + 12)