函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\watchdog_hld.c Create Date:2022-07-27 12:50:27
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：hardlockup_detector_perf_cleanup - Cleanup disabled events and destroy them* Called from lockup_detector_cleanup(). Serialized by the caller.

函数原型：void hardlockup_detector_perf_cleanup(void)

返回类型：void

参数：无

228  event等于per_cpu(dead_event, cpu)
234  如果event则Kill an event dead; while event:refcount will preserve the event* object, it will not preserve its functionality. Once the last 'user'* gives up the object, we'll destroy the thing.
236  per_cpu(dead_event, cpu) = NULL
238  清空全部CPU信息