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 12:50:26
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：hardlockup_detector_perf_disable - Disable the local event

函数原型：void hardlockup_detector_perf_disable(void)

返回类型：void

参数：无

207  event等于Operations with implied preemption/interrupt protection. These* operations can be used without worrying about preemption or interrupt.(watchdog_ev)
209  如果event则
210  perf_event_disable(event)
211  抢占保护下的写CPU(watchdog_ev, NULL)
212  抢占保护下的写CPU(dead_event, event)
213  设置CPU信息
214  atomic_dec( & watchdog_cpus)