函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\trace.c Create Date:2022-07-27 13:03:43
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：buffer_ftrace_now

函数原型：static u64 buffer_ftrace_now(struct trace_buffer *buf, int cpu)

返回类型：u64

参数：

类型参数名称
struct trace_buffer *buf
intcpu
611  如果非buffer则返回:race_clock_local(): the simplest and least coherent tracing clock.* Useful for tracing that does not cross to other CPUs nor* does it go through idle events.
614  ts等于ring_buffer_time_stamp(buffer, cpu)
615  ring_buffer_normalize_time_stamp(buffer, cpu, & ts)
617  返回:ts
调用者
名称描述
ftrace_now
tracing_reset_online_cpus