clocksource_delta

函数名称：clocksource_delta

函数原型：static inline u64 clocksource_delta(u64 now, u64 last, u64 mask)

返回类型：u64

参数：

类型	参数	名称
u64	now
u64	last
u64	mask

30

返回:now减last按位与mask

**调用者**
名称	描述
timekeeping_get_delta
timekeeping_cycles_to_ns
__ktime_get_fast_ns	ktime_get_mono_fast_ns - Fast NMI safe access to clock monotonic* This timestamp is not guaranteed to be monotonic across an update
__ktime_get_real_fast_ns	See comment for __ktime_get_fast_ns() vs. timestamp ordering
timekeeping_forward_now	mekeeping_forward_now - update clock to the current time* Forward the current clock to update its state since the last call to* update_wall_time(). This is useful before significant clock changes,
timekeeping_advance	mekeeping_advance - Updates the timekeeper to the current time and* current NTP tick length
clocksource_stop_suspend_timing	locksource_stop_suspend_timing - Stop measuring the suspend timing@cs: current clocksource from timekeeping@cycle_now: current cycles from timekeeping* This function will calculate the suspend time from suspend timer.

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码