On 11.07.2013, at 01:01, Benjamin Herrenschmidt wrote: > On Thu, 2013-07-11 at 00:57 +0200, Alexander Graf wrote: >>> #ifdef CONFIG_PPC64 >>> + /* >>> + * To avoid races, the caller must have gone directly from having >>> + * interrupts fully-enabled to hard-disabled. >>> + */ >>> + WARN_ON(local_paca->irq_happened != PACA_IRQ_HARD_DIS); >> >> WARN_ON(lazy_irq_pending()); ? > > Different semantics. What you propose will not catch irq_happened == 0 :-) Right, but we only ever reach here after hard_irq_disable() I think. Alex -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
