linux-kernel - Re: [PATCH 3/8] hugetlb: rename hugepage allocation functions

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Message-ID: <20100826082522.GW21389@spritzera.linux.bs1.fc.nec.co.jp>
Date:	Thu, 26 Aug 2010 17:25:22 +0900
From:	Naoya Horiguchi <n-horiguchi@...jp.nec.com>
To:	Wu Fengguang <fengguang.wu@...el.com>
Cc:	Andi Kleen <andi@...stfloor.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Christoph Lameter <cl@...ux-foundation.org>,
	Mel Gorman <mel@....ul.ie>,
	"Jun'ichi Nomura" <j-nomura@...jp.nec.com>,
	linux-mm <linux-mm@...ck.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 3/8] hugetlb: rename hugepage allocation functions

On Wed, Aug 25, 2010 at 09:21:31AM +0800, Wu Fengguang wrote:
> On Wed, Aug 25, 2010 at 07:55:22AM +0800, Naoya Horiguchi wrote:
> > The function name alloc_huge_page_no_vma_node() has verbose suffix "_no_vma".
> > This patch makes existing alloc_huge_page() and it's family have "_vma" instead,
> > which makes it easier to read.
> > 
...
> > @@ -919,7 +919,7 @@ static int gather_surplus_pages(struct hstate *h, int delta)
> >  retry:
> >     spin_unlock(&hugetlb_lock);
> >     for (i = 0; i < needed; i++) {
> > -           page = alloc_buddy_huge_page(h, NULL, 0);
> > +           page = alloc_buddy_huge_page_vma(h, NULL, 0);
> 
> alloc_buddy_huge_page() doesn't make use of @vma at all, so the
> parameters can be removed.

OK.

> It looks cleaner to fold the
> alloc_huge_page_no_vma_node=>alloc_huge_page_node renames into the
> previous patch, from there split out the code refactor chunks into
> a standalone patch, and then include this cleanup patch.

When we unify alloc_buddy_huge_page() as commented for patch 2/8,
_vma suffix is not necessary any more. Your suggestion to drop
unused arguments sounds reasonable,
so I merge the attached patch into patch 2/8.

Thanks,
Naoya
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