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

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Message-ID: <20101014183448.GA3187@elte.hu>
Date:	Thu, 14 Oct 2010 20:34:48 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	Pekka Enberg <penberg@...nel.org>,
	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,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [patch] x86: allow ZONE_DMA to be configurable


* H. Peter Anvin <hpa@...or.com> wrote:

> On 10/14/2010 09:00 AM, Pekka Enberg 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?
> 
> Funny, this seems to come up repeatedly ;)

I'd suggest to rename CONFIG_EMBEDDED=y to CONFIG_EXPERT=y, but i'd also 
suggest to rename all sub-config-options that depend on CONFIG_EXPERT to 
have a CONFIG_EXPERT_ prefix.

So we'd have:

  CONFIG_EXPERT_CPU_SUP_INTEL=y
  CONFIG_EXPERT_MMAP_ALLOW_UNINITIALIZED=y

etc.

That way all the enabled 'expert options' become easily visible in the 
.config file and they advertise themselves properly - it's also easily 
greppable. In the source code it also becomes self-documenting, it's 
obvious when a dependency is 'rare' or 'special' - it has a 
CONFIG_EXPERT_ prefix.

Something for the KS i guess.

Thanks,

	Ingo
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