Function report |
Source Code:kernel\stop_machine.c |
Create Date:2022-07-28 11:21:09 |
Last Modify:2020-03-12 14:18:49 | Copyright©Brick |
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Annotation kernel can get tool activity | Download SCCT | Chinese |
Name:cpu_stopper_thread
Proto:static void cpu_stopper_thread(unsigned int cpu)
Type:void
Parameter:
Type | Parameter | Name |
---|---|---|
unsigned int | cpu |
500 | stopper = per_cpu(cpu_stopper, cpu) |
503 | repeat : |
504 | work = NULL |
505 | raw_spin_lock_irq( & lock) |
511 | raw_spin_unlock_irq( & lock) |
513 | If work Then |
520 | preempt_count_inc() |
522 | If done Then |
523 | If ret Then collected return value = ret |
527 | preempt_count_dec() |
528 | WARN_ONCE(We mask the PREEMPT_NEED_RESCHED bit so as not to confuse all current users* that think a non-zero value indicates we cannot preempt., "cpu_stop: %ps(%p) leaked preempt count\n", fn, arg) |
530 | Go to repeat |
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