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 13:08:39
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：tracing_set_time_stamp_abs

函数原型：int tracing_set_time_stamp_abs(struct trace_array *tr, bool abs)

返回类型：int

参数：

类型参数名称
struct trace_array *tr
boolabs
6736  ret等于0
6738  mutex_lock( & race_types_lock is used to protect the trace_types list.)
6740  如果abs且time_stamp_abs_ref自加则转到:out
6743  如果非abs则
6744  如果WARN_ON_ONCE(!time_stamp_abs_ref)则
6745  ret等于负EINVAL
6746  转到:out
6749  如果time_stamp_abs_ref先自减则转到:out
6753  ring_buffer_set_time_stamp_abs(buffer, abs)
6759  out :
6760  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.
6762  返回:ret
调用者
名称描述
hist_register_trigger
hist_unregister_trigger
hist_unreg_all