Re: [PATCH v1] x86/irq: handle chained interrupts during IRQmigration

From: Thomas Gleixner
Date: Thu May 31 2012 - 03:32:00 EST


On Tue, 29 May 2012, Sundar Iyer wrote:

> Chained interrupt handlers dont have an irqaction and hence are not
> handled during migrating interrupts when some cores go offline.
>
> Handle this by introducing a irq_is_chained() check which is based
> on the IRQ_NOREQUEST flag being set for such interrupts. fixup_irq()
> can then handle such interrupts and not skip them over.

No, we need a separate flag for those. IRQ_NORREQUEST is not a
reliable indicator.

Thanks,

tglx
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