linux-kernel - Re: [PATCH 2/2] [PATCH] Align faulting address to a hugepage boundary before unmapping

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Date:	Thu, 10 Jul 2008 13:02:52 -0500
From:	Adam Litke <agl@...ibm.com>
To:	Mel Gorman <mel@....ul.ie>
Cc:	akpm@...ux-foundation.org, apw@...dowen.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] [PATCH] Align faulting address to a hugepage
	boundary before unmapping

On Thu, 2008-07-10 at 18:30 +0100, Mel Gorman wrote:
> When taking a fault for COW on a private mapping it is possible that the
> parent will have to steal the original page from its children due to an
> insufficient hugepage pool.  In this case, unmap_ref_private() is called
> for the faulting address to unmap via unmap_hugepage_range(). This patch
> ensures that the address used for unmapping is hugepage-aligned.
> 
> Signed-off-by: Mel Gorman <mel@....ul.ie>

Acked-by: Adam Litke <agl@...ibm.com>

Tested and confirmed.

-- 
Adam Litke - (agl at us.ibm.com)
IBM Linux Technology Center

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