函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\smpboot.c Create Date:2022-07-27 10:34:33
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：If CPU has died properly, set its state to CPU_UP_PREPARE and* return success

函数原型：int cpu_check_up_prepare(int cpu)

返回类型：int

参数：

类型参数名称
intcpu
354  如果非IS_ENABLED(CONFIG_FOO) evaluates to 1 if CONFIG_FOO is set to 'y' or 'm',* 0 otherwise.(CONFIG_HOTPLUG_CPU)则
355  atomic_set( & per_cpu(cpu_hotplug_state, cpu), CPU coming up )
356  返回:0
361  当:atomic_read( & per_cpu(cpu_hotplug_state, cpu))恒等于CPU successfully unplugged
364  atomic_set( & per_cpu(cpu_hotplug_state, cpu), CPU coming up )
365  返回:0
367  当:atomic_read( & per_cpu(cpu_hotplug_state, cpu))恒等于CPU timed out on unplug
380  返回:负EBUSY
382  当:atomic_read( & per_cpu(cpu_hotplug_state, cpu))恒等于CPU did not die properly
393  返回:负EAGAIN
395  默认
398  返回:负EIO
调用者
名称描述
native_cpu_up