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Date: Wed, 13 Oct 2010 20:55:05 -0700 (PDT)
From: David Rientjes <rientjes@google.com>
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To: "H. Peter Anvin" <hpa@zytor.com>
cc: Ingo Molnar <mingo@redhat.com>, Thomas Gleixner <tglx@linutronix.de>,
        Casey Dahlin <cdahlin@redhat.com>, x86@kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [patch] x86: allow ZONE_DMA to be configurable
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On Wed, 13 Oct 2010, H. Peter Anvin wrote:

> How do you know it is not a fatal condition?
> 

We lack any GFP_DMA | __GFP_NOFAIL allocations in the kernel, the page 
allocator is safe to return NULL.