Messages in this thread | | | Date | Mon, 7 Sep 2015 16:58:46 +0200 (CEST) | From | Thomas Gleixner <> | Subject | Re: [RFC PATCH v1 2/4] irqchip: GICv3: set non-percpu irqs status with _IRQ_MOVE_PCNTXT |
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On Mon, 7 Sep 2015, Marc Zyngier wrote: > On 07/09/15 14:24, Thomas Gleixner wrote: > > The history of this flag is as follows: > > > > On x86 interrupts can only be safely migrated while the interrupt is > > handled. > > Woa! That's creative! :-) I suppose this doesn't work very well with CPU > hotplug though...
Go figure .... > So I wonder why we bother introducing the IRQ_MOVE_PCNTXT flag on ARM at > all. Is that just because migration.c is only compiled when > GENERIC_PENDING_IRQ is set?
Looks like. We can distangle that, if this code needs to be reusable.
Thanks,
tglx
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