函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\events\core.c Create Date:2022-07-27 14:54:30
Last Modify:2022-05-20 07:50:19 Copyright©Brick
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函数名称：is_event_hup

函数原型：static bool is_event_hup(struct perf_event *event)

返回类型：bool

参数：

类型参数名称
struct perf_event *event
4999  如果state大于PERF_EVENT_STATE_EXIT则返回:false
5002  mutex_lock( & child_mutex)
5003  no_children等于链表为空
5004  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.
5005  返回:no_children
调用者
名称描述
perf_poll