函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\time\timekeeping.c Create Date:2022-07-27 11:41:38
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：timekeeping_delta_to_ns

函数原型：static inline u64 timekeeping_delta_to_ns(const struct tk_read_base *tkr, u64 delta)

返回类型：u64

参数：

类型参数名称
const struct tk_read_base *tkr
u64delta
363  nsec等于delta乘mult加xtime_nsec
364  nsec右移等于shift位
367  返回:nsec加arch_gettimeoffset()
调用者
名称描述
timekeeping_get_ns
timekeeping_cycles_to_ns
__ktime_get_fast_nsktime_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_nsSee comment for __ktime_get_fast_ns() vs. timestamp ordering