函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\trace_events_trigger.c Create Date:2022-07-27 13:34:27
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Currently we only unregister event commands from __init, so mark* this __init too.

函数原型：__init int unregister_event_command(struct event_command *cmd)

返回类型：int

参数：

类型参数名称
struct event_command *cmd
349  ret等于负ENODEV
351  mutex_lock( & trigger_cmd_mutex)
353  如果字符串比较恒等于0则
354  ret等于0
355  删除链表项并重新初始化
356  转到:out_unlock
359  out_unlock :
360  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.
362  返回:ret
调用者
名称描述
unregister_trigger_traceon_traceoff_cmds
unregister_trigger_enable_disable_cmds
unregister_trigger_hist_enable_disable_cmds