linux-kernel - Re: [PATCH] memory-hotplug: remove redundant call of page_to

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Message-ID: <alpine.DEB.2.10.1411171144550.25623@chino.kir.corp.google.com>
Date:	Mon, 17 Nov 2014 11:45:04 -0800 (PST)
From:	David Rientjes <rientjes@...gle.com>
To:	Zhang Zhen <zhenzhang.zhang@...wei.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Dave Hansen <dave.hansen@...el.com>,
	Linux MM <linux-mm@...ck.org>, linux-kernel@...r.kernel.org,
	wangnan0@...wei.com
Subject: Re: [PATCH] memory-hotplug: remove redundant call of page_to_pfn

On Tue, 11 Nov 2014, Zhang Zhen wrote:

> The start_pfn can be obtained directly by
> phys_index << PFN_SECTION_SHIFT.
> 
> Signed-off-by: Zhang Zhen <zhenzhang.zhang@...wei.com>

Acked-by: David Rientjes <rientjes@...gle.com>
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