But the first line of irq_interrupt() is:
spin_lock (&rtc_lock);
If one has a multi-processor machine, and CPUx is going through
the bootflag code, which takes the rtc_lock, and that CPU is
interrupted and enters rtc_interrupt(), which tries to take the
rtc_lock, won't it deadlock?
If not, then I'm missing some clue about how these spinlocks work.
Thomas
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