linux-kernel - Re: [tip:x86/apic] x86/apic: Limit irq affinity

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Message-ID: <20091110044025.GA7897@elte.hu>
Date:	Tue, 10 Nov 2009 05:40:25 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Dimitri Sivanich <sivanich@....com>
Cc:	mingo@...hat.com, hpa@...or.com, linux-kernel@...r.kernel.org,
	yinghai@...nel.org, suresh.b.siddha@...el.com, tglx@...utronix.de
Subject: Re: [tip:x86/apic] x86/apic: Limit irq affinity


* Dimitri Sivanich <sivanich@....com> wrote:

> On Sun, Nov 08, 2009 at 03:53:55PM +0100, Ingo Molnar wrote:
> > 
> > * tip-bot for Dimitri Sivanich <sivanich@....com> wrote:
> > 
> > > Commit-ID:  683c91f85d7a3e1092d7fa3ec5687af8cd379f02
> > > Gitweb:     http://git.kernel.org/tip/683c91f85d7a3e1092d7fa3ec5687af8cd379f02
> > > Author:     Dimitri Sivanich <sivanich@....com>
> > > AuthorDate: Tue, 3 Nov 2009 12:40:37 -0600
> > > Committer:  Ingo Molnar <mingo@...e.hu>
> > > CommitDate: Sun, 8 Nov 2009 13:30:40 +0100
> > > 
> > > x86/apic: Limit irq affinity
> > > 
> > > This patch allows for hard numa restrictions to irq affinity on
> > > x86 systems.
> > 
> > -tip testing found a build failure:
> > 
> > arch/x86/kernel/apic/io_apic.c:1438: error: ???struct irq_desc??? has no member named ???node???
> > arch/x86/kernel/apic/io_apic.c:3286: error: ???struct irq_desc??? has no member named ???node???
> >
> 
> In the interest of doing some ifdef cleanup as well as fixing the 
> build problem, can I suggest that we remove the 'ifdef CONFIG_SMP' 
> from the irq_desc?

What's the (data and code) size effect on UP kernels?

	Ingo
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