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 13:03:30
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：trace_array_get

函数原型：int trace_array_get(struct trace_array *this_tr)

返回类型：int

参数：

类型参数名称
struct trace_array *this_tr
283  ret等于负ENODEV
285  mutex_lock( & trace_types_lock)
287  如果tr恒等于this_tr则
288  ref自加
289  ret等于0
290  退出
293  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.
295  返回:ret
调用者
名称描述
tracing_check_open_get_tr
subsystem_open