linux-kernel - Re: [patch] x86: allow ZONE

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Message-ID: <alpine.DEB.2.00.1010132054310.4544@chino.kir.corp.google.com>
Date:	Wed, 13 Oct 2010 20:55:05 -0700 (PDT)
From:	David Rientjes <rientjes@...gle.com>
To:	"H. Peter Anvin" <hpa@...or.com>
cc:	Ingo Molnar <mingo@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Casey Dahlin <cdahlin@...hat.com>, x86@...nel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [patch] x86: allow ZONE_DMA to be configurable

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.
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