Andrea Arcangeli wrote:
> Timer, bottomhalves (softirq) and tasklets (and softnet) are always
> recalled with irq enabled. So if it would be called by timer/tasklet/bhhandler
> it should use irq version of the spinlocks too if it needs to run with irq
> locally disabled.
>
> One thing you could safely change in keyboard_interrupt is to remove the save
> part of the spinlock by using spin_lock_irq (we don't need to save anything
> since keyboard_interrupt is only recalled as an irq handler).
I understand SA_INTERRUPT, my question in the previous e-mail was more
basic: keyboard_interrupt calls handle_kbd_event with local interrupts
disabled. Why are local interrupts disabled?
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This archive was generated by hypermail 2b29 : Mon Oct 23 2000 - 21:00:10 EST