linux-kernel - Re: [PATCH v2 00/26] x86, irq: support ioapic device hotplug

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Date:	Mon, 11 Feb 2013 10:34:17 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	"Rafael J. Wysocki" <rjw@...k.pl>, linux-pci@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 00/26] x86, irq: support ioapic device hotplug

* Yinghai Lu <yinghai@...nel.org> wrote:

> Hi,
> 
> Current x86 code does not support iapic hotplug yet.

Please give a better high-level description: outline how an 
IO-APIC will be hotplugged physically and what changes the 
user will experience.

That needs at least 2 paragraphs, not one cursory sentence. Then 
should come technical descriptions - but even those need 
improvements, please first explain the current status quo, then 
explain how that is inadequate for IO-APIC hot-plugging, *then* 
only explain what you are doing in the patch ...

Thanks,

	Ingo
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