Re: [RFC PATCH v1 2/4] irqchip: GICv3: set non-percpu irqs status with _IRQ_MOVE_PCNTXT
From: Thomas Gleixner
Date: Mon Sep 07 2015 - 10:59:33 EST
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.
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