linux-kernel - Re: [PATCH 5/6] x86, acpi, crash, kdump: Do reserve

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Message-ID: <20130924123428.GF2366@htj.dyndns.org>
Date:	Tue, 24 Sep 2013 08:34:28 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Zhang Yanfei <zhangyanfei@...fujitsu.com>
Cc:	"Rafael J . Wysocki" <rjw@...k.pl>, lenb@...nel.org,
	Thomas Gleixner <tglx@...utronix.de>, mingo@...e.hu,
	"H. Peter Anvin" <hpa@...or.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Toshi Kani <toshi.kani@...com>,
	Wanpeng Li <liwanp@...ux.vnet.ibm.com>,
	Thomas Renninger <trenn@...e.de>,
	Yinghai Lu <yinghai@...nel.org>,
	Jiang Liu <jiang.liu@...wei.com>,
	Wen Congyang <wency@...fujitsu.com>,
	Lai Jiangshan <laijs@...fujitsu.com>,
	isimatu.yasuaki@...fujitsu.com, izumi.taku@...fujitsu.com,
	Mel Gorman <mgorman@...e.de>, Minchan Kim <minchan@...nel.org>,
	mina86@...a86.com, gong.chen@...ux.intel.com,
	vasilis.liaskovitis@...fitbricks.com, lwoodman@...hat.com,
	Rik van Riel <riel@...hat.com>, jweiner@...hat.com,
	prarit@...hat.com, "x86@...nel.org" <x86@...nel.org>,
	linux-doc@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Linux MM <linux-mm@...ck.org>, linux-acpi@...r.kernel.org,
	imtangchen@...il.com, Zhang Yanfei <zhangyanfei.yes@...il.com>
Subject: Re: [PATCH 5/6] x86, acpi, crash, kdump: Do reserve_crashkernel()
 after SRAT is parsed.

On Tue, Sep 24, 2013 at 06:09:49PM +0800, Zhang Yanfei wrote:
> From: Tang Chen <tangchen@...fujitsu.com>
> 
> Memory reserved for crashkernel could be large. So we should not allocate
> this memory bottom up from the end of kernel image.
> 
> When SRAT is parsed, we will be able to know whihc memory is hotpluggable,
> and we can avoid allocating this memory for the kernel. So reorder
> reserve_crashkernel() after SRAT is parsed.
> 
> Signed-off-by: Tang Chen <tangchen@...fujitsu.com>
> Reviewed-by: Zhang Yanfei <zhangyanfei@...fujitsu.com>

Assuming this was tested to work.

 Acked-by: Tejun Heo <tj@...nel.org>

Thanks.

-- 
tejun
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