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

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Message-ID: <20100924032415.GA26639@spritzera.linux.bs1.fc.nec.co.jp>
Date:	Fri, 24 Sep 2010 12:24:15 +0900
From:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>
To:	Christoph Lameter <cl@...ux.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 Thu, Sep 23, 2010 at 11:21:25AM -0500, Christoph Lameter wrote:
> 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?

That's right.
I'll do this cleanup (although it may be aside from this patchset.)

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

Thank you.

- Naoya Horiguchi
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