linux-kernel - Re: [PATCH] swiotlb: Use page alignment for early buffer allocation

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Message-Id: <20101012043704B.fujita.tomonori@lab.ntt.co.jp>
Date:	Tue, 12 Oct 2010 04:41:55 +0900
From:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
To:	konrad.wilk@...cle.com
Cc:	yinghai@...nel.org, fujita.tomonori@....ntt.co.jp,
	akpm@...ux-foundation.org, mingo@...e.hu, andre.goddard@...il.com,
	linux-kernel@...r.kernel.org, beckyb@...nel.crashing.org
Subject: Re: [PATCH] swiotlb: Use page alignment for early buffer allocation

On Mon, 11 Oct 2010 14:55:52 -0400
Konrad Rzeszutek Wilk <konrad.wilk@...cle.com> wrote:

> On Mon, Oct 11, 2010 at 10:40:25AM -0700, Yinghai Lu wrote:
> > 
> > We could call free_bootmem_late() if swiotlb is not used, and
> > it will shrink to page alignment.
> > 
> > So alloc them with page alignment at first, to avoid lose two pages
> 
> Looks good to me.

Acked-by: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>

I'm not a big fun of using PAGE_ALING for size (not address) though.

> Fujita, you OK if I queue this up along with your other patch
> (swiotlb: make io_tlb_overflow static)

Fine by me.

Thanks,
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