linux-kernel - Re: [RFC v2] memory-hotplug: remove MIGRATE_ISOLATE from free_area->free

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Message-ID: <xa1tpq5z9uw4.fsf@mina86.com>
Date:	Thu, 06 Sep 2012 14:51:39 +0200
From:	Michal Nazarewicz <mina86@...a86.com>
To:	Lai Jiangshan <laijs@...fujitsu.com>,
	Minchan Kim <minchan@...nel.org>
Cc:	Kamezawa Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Yasuaki Ishimatsu <isimatu.yasuaki@...fujitsu.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mel Gorman <mel@....ul.ie>,
	Wen Congyang <wency@...fujitsu.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Subject: Re: [RFC v2] memory-hotplug: remove MIGRATE_ISOLATE from free_area->free_list

On Thu, Sep 06 2012, Lai Jiangshan wrote:
> +found:
> +	next_pfn = page_to_pfn(page);
> +	list_for_each_entry_from(page, &isolated_pages, lru) {
> +		if (page_to_pfn(page) != next_pfn)
> +			return false;
> +		pfn = page_to_pfn(page);

+		pfn = page_to_pfn(page);
+		if (pfn != next_pfn)
+			return false;

> +		next_pfn = pfn + (1UL << page_order(page));
> +		if (next_pfn >= end_pfn)
> +			return true;
>  	}

-- 
Best regards,                                         _     _
.o. | Liege of Serenely Enlightened Majesty of      o' \,=./ `o
..o | Computer Science,  Michał “mina86” Nazarewicz    (o o)
ooo +----<email/xmpp: mpn@...gle.com>--------------ooO--(_)--Ooo--

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