函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\irq\cpuhotplug.c Create Date:2022-07-27 11:15:17
Last Modify:2020-03-17 14:50:00 Copyright©Brick
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函数名称：q_migrate_all_off_this_cpu - Migrate irqs away from offline cpu* The current CPU has been marked offline

函数原型：void irq_migrate_all_off_this_cpu(void)

返回类型：void

参数：无

162  desc等于中断转换为描述
163  raw_spin_lock( & 自旋锁)
164  affinity_broken等于migrate_one_irq(desc)
165  raw_spin_unlock( & 自旋锁)
167  如果affinity_broken则
168  pr_warn_ratelimited("IRQ %u: no longer affine to CPU%u\n", irq, 当前cpu ID())