linux-kernel - Re: [PATCH v9 03/12] x86, topology: Don't offline CPU0 if any PIC irq can not be migrated out of it

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Message-ID: <20121016194044.GB27090@liondog.tnic>
Date:	Tue, 16 Oct 2012 21:40:44 +0200
From:	Borislav Petkov <bp@...en8.de>
To:	"Yu, Fenghua" <fenghua.yu@...el.com>
Cc:	Ingo Molnar <mingo@...e.hu>, Thomas Gleixner <tglx@...utronix.de>,
	H Peter Anvin <hpa@...or.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"Mallick, Asit K" <asit.k.mallick@...el.com>,
	"Luck, Tony" <tony.luck@...el.com>,
	Arjan Dan De Ven <arjan@...ux.intel.com>,
	"Siddha, Suresh B" <suresh.b.siddha@...el.com>,
	"Brown, Len" <len.brown@...el.com>,
	"Srivatssa S. Bhat" <srivatsa.bhat@...ux.vnet.ibm.com>,
	Randy Dunlap <rdunlap@...otime.net>,
	Chen Gong <gong.chen@...ux.intel.com>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	linux-pm <linux-pm@...r.kernel.org>, x86 <x86@...nel.org>
Subject: Re: [PATCH v9 03/12] x86, topology: Don't offline CPU0 if any PIC
 irq can not be migrated out of it

On Tue, Oct 16, 2012 at 06:43:36PM +0000, Yu, Fenghua wrote:
> arch/x86/kernel/cpu/topology.c doesn't contain CPU hotplug hooks.
> To place the BSP patchset in this file, other existing CPU hotplug
> code should be moved to this file as well. Apparently that's not this
> patchset's task.

Right, ok.

But looking at this a bit more, we (someone :)) should probably merge
those two files together since both deal with the cpu aspect of
topology...

Oh well.

-- 
Regards/Gruss,
    Boris.
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