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

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Message-ID: <20070206222523.GA11602@elte.hu>
Date:	Tue, 6 Feb 2007 23:25:23 +0100
From:	Ingo Molnar <mingo@...e.hu>
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>,
	Natalie Protasevich <protasnb@...il.com>,
	Andi Kleen <ak@...e.de>
Subject: Re: [PATCH 2/2] x86_64 irq:  Handle irqs pending in IRR during irq migration.


* Eric W. Biederman <ebiederm@...ssion.com> wrote:

> Ingo would it be reasonable to get a wait queue so I can wait for an 
> irq that needs the delayed disable action to actually become masked?

that might make sense, but what will do the wakeup - incidental IRQ 
arriving on the new CPU? Isnt that a bit risky - maybe the device wont 
generate IRQs for a really long time.

	Ingo
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