Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote: > I can think of code that does a lot more than that, suppose you have > both KM_USER[01], get an interrupt that takes KM_IRQ[01], take an NMI > that takes KM_NMI. But whilst the interrupt might want to use two slots, it's probably a bug for it to want to access the mappings set up by whatever called KM_USER[01] - so it can probably reuse those slots, provided it puts them back again. Similarly for NMI taking KM_NMI - it probably shouldn't be attempting to access the mappings set up by the normal mode or the interrupt mode - in which case, why can't it reuse those slots? > Maybe we can stack the SOFTIRQ ones in as well ;-) Ditto. David -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
