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 13:04:56
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：register_ftrace_export

函数原型：int register_ftrace_export(struct trace_export *export)

返回类型：int

参数：

类型参数名称
struct trace_export *export
2817  如果WARN_ON_ONCE(!write)则返回:负1
2820  mutex_lock( & ftrace_export_lock)
2822  add_ftrace_export( & ftrace_exports_list, export)
2824  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.
2826  返回:0