linux-kernel - Re: [tip:x86/irq] x86: apic: Fix mismerge, add arch_probe_nr

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Message-ID: <1267442545.11737.20718.camel@zakaz.uk.xensource.com>
Date:	Mon, 01 Mar 2010 11:22:25 +0000
From:	Ian Campbell <ijc@...lion.org.uk>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	mingo@...hat.com, hpa@...or.com, linux-kernel@...r.kernel.org,
	tglx@...utronix.de, mingo@...e.hu,
	linux-tip-commits@...r.kernel.org,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Jeremy Fitzhardinge <jeremy@...p.org>
Subject: Re: [tip:x86/irq] x86: apic: Fix mismerge, add
 arch_probe_nr_irqs() again

On Fri, 2010-02-26 at 10:19 -0800, Yinghai Lu wrote:
> 
> 
> for x86, with radix tree based irq_to_desc(),
> removing arch_probe_nr_irqs is intentional. so we get more irq that
> could be used. 

This sounds interesting for the Xen dom0 use case where we can have
essentially arbitrary numbers of interrupt sources.

Is there a tree somewhere that I can be looking at?

Ian
-- 
Ian Campbell
Current Noise: Rammstein - Morgenstern

Money will say more in one moment than the most eloquent lover can in years.

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