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

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Message-ID: <AANLkTin-VOKXe6wcwt_r3bLcS6=WYJ4EAPPUZWLbEGQF@mail.gmail.com>
Date:	Thu, 14 Oct 2010 19:00:00 +0300
From:	Pekka Enberg <penberg@...nel.org>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	David Rientjes <rientjes@...gle.com>,
	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 10/13/2010 09:46 PM, David Rientjes wrote:
>> I'm not running a CONFIG_EMBEDDED kernel and I'm pretty sure Casey isn't
>> either, so we'd still need to carry our own patches to change the Kconfig
>> bool line anyway.
>>
>> I'm suprised that we can't allow users who definitively know that they
>> have no hardware limitations the ability to disable ZONE_DMA.  Would a
>> strong caution in the Kconfig "help" text suffice or will you not be
>> convinced?

On Thu, Oct 14, 2010 at 6:38 PM, H. Peter Anvin <hpa@...or.com> wrote:
> CONFIG_EMBEDDED *is* "I am a user who (think I) know what I'm doing".
> That is *what it is* and *all it is*.

Yup. The naming is quite unfortunate, though. Can we change it to
something else?
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