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

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Date:	Fri, 11 Dec 2015 05:53:17 +0000
From:	"Izumi, Taku" <izumi.taku@...fujitsu.com>
To:	Xishi Qiu <qiuxishi@...wei.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

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.

  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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