Messages in this thread | | | Subject | Re: [RFC][PATCH] irq_work | From | Peter Zijlstra <> | Date | Thu, 24 Jun 2010 08:58:00 +0200 |
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On Thu, 2010-06-24 at 14:50 +0800, Huang Ying wrote: > On Thu, 2010-06-24 at 14:47 +0800, Peter Zijlstra wrote: > > On Thu, 2010-06-24 at 14:43 +0800, Huang Ying wrote: > > > Hi, Peter, > > > > > I fact I uses exactly the similar method in my patches, just trigger it > > > with soft_irq instead of IRQ. Please take a look at > > > nmi_return_notifier_schedule in > > > > But then why still use softirq? Once you have this its completely > > useless. > > Some systems have no self interrupt, for example the system without > APIC. We need to provide a fallback for them. soft_irq can help here.
So there's systems that don't have self-ipi but do have NMI context?
Can't we run the callbacks from the tick or something for such legacy muck? I really don't like the whole softirq mess.
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