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 14:50:50
Last Modify:2022-05-20 07:50:19 Copyright©Brick
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函数名称：perf_unpin_context

函数原型：static void perf_unpin_context(struct perf_event_context *ctx)

返回类型：void

参数：

类型参数名称
struct perf_event_context *ctx
1442  raw_spin_lock_irqsave( & Protect the states of the events in the list,* nr_active, and the list:, flags)
1443  pin_count先自减
1444  raw_spin_unlock_irqrestore( & Protect the states of the events in the list,* nr_active, and the list:, flags)
调用者
名称描述
perf_event_create_kernel_counterperf_event_create_kernel_counter*@attr: attributes of the counter to create*@cpu: cpu in which the counter is bound*@task: task to profile (NULL for percpu)
perf_event_init_contextInitialize the perf_event context in task_struct