函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\trace\preemptirq_delay_test.c Create Date:2022-07-27 13:14:45
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：busy_wait

函数原型：static void busy_wait(ulong time)

返回类型：void

参数：

类型参数名称
ulongtime
36  start等于race_clock_local(): the simplest and least coherent tracing clock.* Useful for tracing that does not cross to other CPUs nor* does it go through idle events.
37  循环
38  end等于race_clock_local(): the simplest and least coherent tracing clock.* Useful for tracing that does not cross to other CPUs nor* does it go through idle events.
39  如果kthread_should_stop - should this kthread return now?* When someone calls kthread_stop() on your kthread, it will be woken* and this will return true. You should then return, and your return* value will be passed through to kthread_stop().则退出
41  当end减start小于time乘1000循环
调用者
名称描述
irqoff_test
preemptoff_test