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 13:08:33
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：tracing_set_clock

函数原型：int tracing_set_clock(struct trace_array *tr, const char *clockstr)

返回类型：int

参数：

类型参数名称
struct trace_array *tr
const char *clockstr
6628  以i小于ARRAY_SIZE - get the number of elements in array @arr*@arr: array to be sized(trace_clocks)循环
6629  如果字符串比较恒等于0则退出
6632  如果i恒等于ARRAY_SIZE - get the number of elements in array @arr*@arr: array to be sized(trace_clocks)则返回:负EINVAL
6635  mutex_lock( & race_types_lock is used to protect the trace_types list.)
6637  clock_id等于i
6639  ring_buffer_set_clock(buffer, func)
6645  tracing_reset_online_cpus( & trace_buffer)
6653  mutex_unlock - release the mutex*@lock: the mutex to be released* Unlock a mutex that has been locked by this task previously.* This function must not be used in interrupt context. Unlocking* of a not locked mutex is not allowed.
6655  返回:0
调用者
名称描述
tracing_clock_write
tracer_alloc_buffers
hist_register_trigger