linux-kernel - Re: [PATCHv2 3/4] mm: vmalloc: add VM_DMA flag to indicate areas used by dma-mapping framework

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Date:	Thu, 24 May 2012 21:28:54 +0900
From:	Paul Mundt <lethal@...ux-sh.org>
To:	Marek Szyprowski <m.szyprowski@...sung.com>
Cc:	"'Minchan Kim'" <minchan@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	linaro-mm-sig@...ts.linaro.org, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	"'Kyungmin Park'" <kyungmin.park@...sung.com>,
	"'Arnd Bergmann'" <arnd@...db.de>,
	"'Russell King - ARM Linux'" <linux@....linux.org.uk>,
	"'Chunsang Jeong'" <chunsang.jeong@...aro.org>,
	"'Krishna Reddy'" <vdumpa@...dia.com>,
	"'Konrad Rzeszutek Wilk'" <konrad.wilk@...cle.com>,
	"'Hiroshi Doyu'" <hdoyu@...dia.com>,
	"'Subash Patel'" <subashrp@...il.com>,
	"'Nick Piggin'" <npiggin@...il.com>
Subject: Re: [PATCHv2 3/4] mm: vmalloc: add VM_DMA flag to indicate areas
 used by dma-mapping framework

On Thu, May 24, 2012 at 02:26:12PM +0200, Marek Szyprowski wrote:
> On Tuesday, May 22, 2012 9:08 AM Minchan Kim wrote:
> > Hmm, VM_DMA would become generic flag?
> > AFAIU, maybe VM_DMA would be used only on ARM arch.
> 
> Right now yes, it will be used only on ARM architecture, but maybe other architecture will
> start using it once it is available.
> 
There's very little about the code in question that is ARM-specific to
begin with. I plan to adopt similar changes on SH once the work has
settled one way or the other, so we'll probably use the VMA flag there,
too.
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