linux-kernel - Re: [PATCH] x86_64 irq: reset more to default when clear irq_vector for destroy

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Message-ID: <m1r6wsnr2p.fsf@ebiederm.dsl.xmission.com>
Date:	Sat, 28 Oct 2006 14:06:06 -0600
From:	ebiederm@...ssion.com (Eric W. Biederman)
To:	Andi Kleen <ak@....de>
Cc:	Yinghai Lu <yinghai.lu@....com>, Muli Ben-Yehuda <muli@...ibm.com>,
	Andrew Morton <akpm@...l.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86_64 irq: reset more to default when clear irq_vector for destroy_irq

Andi Kleen <ak@....de> writes:

> On Fri, Oct 27, 2006 at 10:44:36PM -0700, Yinghai Lu wrote:
>> revised version according to Eric. and it can be applied clearly to
>> current Linus's Tree.
>> 
>> Clear the irq releated entries in irq_vector, irq_domain and vector_irq
>> instead of clearing irq_vector only. So when new irq is created, it
>> could reuse that vector. (actually is the second loop scanning from
>> FIRST_DEVICE_VECTOR+8). This could avoid the vectors are used up
>> with enough module inserting and removing
>
> Added thanks.
>
> Does i386 need a similar patch?

i386 is good, as it doesn't deal with per cpu vectors, so it doesn't
have the additional data structures.

Eric
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