linux-kernel - Re: [PATCH 2/2] x86_64 irq: Handle irqs pending in IRR during irq migration.

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Message-Id: <200702031126.01483.ak@suse.de>
Date:	Sat, 3 Feb 2007 11:26:01 +0100
From:	Andi Kleen <ak@...e.de>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	Andrew Morton <akpm@...l.org>, linux-kernel@...r.kernel.org,
	"Lu, Yinghai" <yinghai.lu@....com>,
	"Luigi Genoni" <luigi.genoni@...elli.com>,
	Ingo Molnar <mingo@...e.hu>,
	Natalie Protasevich <protasnb@...il.com>
Subject: Re: [PATCH 2/2] x86_64 irq:  Handle irqs pending in IRR during irq migration.

On Saturday 03 February 2007 11:22, Eric W. Biederman wrote:
> Andi Kleen <ak@...e.de> writes:
> 
> >> Once the migration operation is complete we know we will receive
> >> no more interrupts on this vector so the irq pending state for
> >> this irq will no longer be updated.  If the irq is not pending and
> >> we are in the intermediate state we immediately free the vector,
> >> otherwise in we free the vector in do_IRQ when the pending irq
> >> arrives.
> >
> > Ok for me, although the magic numbers are a little nasty.
> 
> You must be talking about (vector/32) *0x10.

No I meant the -1s

-Andi
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