linux-kernel - Re: [PATCH 03/10] hugetlb: redefine hugepage copy functions

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Date:	Thu, 23 Sep 2010 11:21:25 -0500 (CDT)
From:	Christoph Lameter <cl@...ux.com>
To:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>
cc:	Andi Kleen <andi@...stfloor.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Mel Gorman <mel@....ul.ie>,
	Wu Fengguang <fengguang.wu@...el.com>,
	Jun'ichi Nomura <j-nomura@...jp.nec.com>,
	linux-mm <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 03/10] hugetlb: redefine hugepage copy functions

On Wed, 8 Sep 2010, Naoya Horiguchi wrote:

> This patch modifies hugepage copy functions to have only destination
> and source hugepages as arguments for later use.
> The old ones are renamed from copy_{gigantic,huge}_page() to
> copy_user_{gigantic,huge}_page().
> This naming convention is consistent with that between copy_highpage()
> and copy_user_highpage().

Looking at copy_user_highpage(): The vma parameter does not seem to be
used anywhere anymore? The vaddr is used on arches that have virtual
caching.

Maybe removing the vma parameter would allow to simplify the hugetlb
code?

Reviewed-by: Christoph Lameter <cl@...ux.com>


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