Re: [PATCH 2/6] Introduce CONFIG_ZONE_DMA
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- To: Christoph Hellwig <hch@xxxxxxxxxxxxx>
- Subject: Re: [PATCH 2/6] Introduce CONFIG_ZONE_DMA
- From: Russell King <rmk@xxxxxxxxxxxxxxxx>
- Date: Mon, 18 Sep 2006 15:42:36 +0100
- Cc: Christoph Lameter <clameter@xxxxxxx>, linux-mm@xxxxxxxxxxxxxxx, Nick Piggin <nickpiggin@xxxxxxxxxxxx>, linux-ia64@xxxxxxxxxxxxxxx, Marcelo Tosatti <marcelo@xxxxxxxxx>, Arjan van de Ven <arjan@xxxxxxxxxxxxx>, Martin Bligh <mbligh@xxxxxxxxxx>, KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>, Andi Kleen <ak@xxxxxxx>, linux-arch@xxxxxxxxxxxxxxx
- In-reply-to: <20060918135559.GB15096@xxxxxxxxxxxxx>
- Mail-followup-to: Christoph Hellwig <hch@xxxxxxxxxxxxx>, Christoph Lameter <clameter@xxxxxxx>, linux-mm@xxxxxxxxxxxxxxx, Nick Piggin <nickpiggin@xxxxxxxxxxxx>, linux-ia64@xxxxxxxxxxxxxxx, Marcelo Tosatti <marcelo@xxxxxxxxx>, Arjan van de Ven <arjan@xxxxxxxxxxxxx>, Martin Bligh <mbligh@xxxxxxxxxx>, KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>, Andi Kleen <ak@xxxxxxx>, linux-arch@xxxxxxxxxxxxxxx
- References: <20060911222729.4849.69497.sendpatchset@xxxxxxxxxxxxxxxxxxxxxxxxx> <20060911222739.4849.79915.sendpatchset@xxxxxxxxxxxxxxxxxxxxxxxxx> <20060918135559.GB15096@xxxxxxxxxxxxx>
- User-agent: Mutt/1.4.1i
On Mon, Sep 18, 2006 at 02:55:59PM +0100, Christoph Hellwig wrote:
> Let's pass this on to linux-arch so that the arch maintainers can give input
> whether they need ZONE_DMA or not. If this just sneaks in unseen I'd bet
> various architectures will just keept it around despite not needing it.
Thanks Chris - I'd have missed this otherwise.
FWIW, several ARM platforms do make use of ZONE_DMA, though not all, so
it's not safe to assume that it can be turned off just because it's ARM.
--
Russell King
Linux kernel 2.6 ARM Linux - http://www.arm.linux.org.uk/
maintainer of: 2.6 Serial core
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