linux-kernel - Re: [PATCH] x86/mm/init: respect memblock reserved regions when destroying mappings

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Message-ID: <4D4EDF39.9090307@kernel.org>
Date:	Sun, 06 Feb 2011 09:49:45 -0800
From:	Yinghai Lu <yinghai@...nel.org>
To:	"H. Peter Anvin" <hpa@...or.com>,
	Jeremy Fitzhardinge <jeremy@...p.org>
CC:	Stefano Stabellini <Stefano.Stabellini@...citrix.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	"x86@...nel.org" <x86@...nel.org>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Jan Beulich <JBeulich@...ell.com>
Subject: Re: [PATCH] x86/mm/init: respect memblock reserved regions when destroying
 mappings

On 02/05/2011 11:30 PM, H. Peter Anvin wrote:
> On 02/05/2011 11:02 PM, Yinghai Lu wrote:
>> why not just move calling cleanup_highmap down?
>>
>> something like attached patch.
> 
> This patch looks very clean and looks on the surface of it like it is
> removing some ugly ad hoc code, but (as always) it needs a description
> about the problem it solves and why it is correct.
> 

just cleanup on native platform.

but wonder if could cause problem for xen memory hotplug support.

Thanks

Yinghai
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