linux-kernel - Re: [PATCH v3 2/2] mm: Introduce kernelcore=mirror option

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Message-ID: <566A9AE1.7020001@huawei.com>
Date:	Fri, 11 Dec 2015 17:44:01 +0800
From:	Xishi Qiu <qiuxishi@...wei.com>
To:	"Izumi, Taku" <izumi.taku@...fujitsu.com>
CC:	"Luck, Tony" <tony.luck@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"Kamezawa, Hiroyuki" <kamezawa.hiroyu@...fujitsu.com>,
	"mel@....ul.ie" <mel@....ul.ie>,
	"Hansen, Dave" <dave.hansen@...el.com>,
	"matt@...eblueprint.co.uk" <matt@...eblueprint.co.uk>
Subject: Re: [PATCH v3 2/2] mm: Introduce kernelcore=mirror option

On 2015/12/11 13:53, Izumi, Taku wrote:

> Dear Xishi,
> 
>> Hi Taku,
>>
>> Whether it is possible that we rewrite the fallback function in buddy system
>> when zone_movable and mirrored_kernelcore are both enabled?
> 
>   What does "when zone_movable and mirrored_kernelcore are both enabled?" mean ?
>   
>   My patchset just provides a new way to create ZONE_MOVABLE.
> 

Hi Taku,

I mean when zone_movable is from kernelcore=mirror, not kernelcore=nn[KMG].

Thanks,
Xishi Qiu

>   Sincerely,
>   Taku Izumi
>>
>> It seems something like that we add a new zone but the name is zone_movable,
>> not zone_mirror. And the prerequisite is that we won't enable these two
>> features(movable memory and mirrored memory) at the same time. Thus we can
>> reuse the code of movable zone.
>>
> 
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