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Subject: Re: [PATCH 1/3] powerpc: dma code cleanup
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Remi Machet <rmachet@slac.stanford.edu>
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Date: Wed, 08 Oct 2008 09:12:51 +1100
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On Tue, 2008-10-07 at 15:11 -0700, Remi Machet wrote:
> This will disappear since I am going to use the vmalloc pool but out of
> curiosity: calling kmap should not result in any virtual memory from the
> kmap pool being used unless the allocated page is in high memory. Do you
> expect many driver to call dma_alloc with GFP_HIGHMEM?

Hard to tell, but they can so ...

Ben.