linux-kernel - Re: [PATCH 103/104] mm: remove depends on CONFIG

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Date:	Mon, 5 Nov 2012 17:57:03 -0800
From:	Kees Cook <keescook@...omium.org>
To:	David Rientjes <rientjes@...gle.com>
Cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Jan Beulich <JBeulich@...ell.com>, Mel Gorman <mel@....ul.ie>,
	Seth Jennings <sjenning@...ux.vnet.ibm.com>
Subject: Re: [PATCH 103/104] mm: remove depends on CONFIG_EXPERIMENTAL

On Mon, Nov 5, 2012 at 5:54 PM, Kees Cook <keescook@...omium.org> wrote:
> On Mon, Nov 5, 2012 at 5:22 PM, David Rientjes <rientjes@...gle.com> wrote:
>> On Mon, 5 Nov 2012, Kees Cook wrote:
>>
>>> diff --git a/mm/Kconfig b/mm/Kconfig
>>> index a3f8ddd..679945e 100644
>>> --- a/mm/Kconfig
>>> +++ b/mm/Kconfig
>>> @@ -1,6 +1,5 @@
>>>  config SELECT_MEMORY_MODEL
>>>       def_bool y
>>> -     depends on EXPERIMENTAL || ARCH_SELECT_MEMORY_MODEL
>>>
>>>  choice
>>>       prompt "Memory model"
>>
>> I thought you agreed to only drop EXPERIMENTAL here in
>> http://marc.info/?l=linux-kernel&m=135103415901094 and leave
>> ARCH_SELECT_MEMORY_MODEL, which you've orphaned with the above, for phase
>> two of your effort?
>
> Ah! Yes, thanks. I'll restore that.

Wait, no. This is an "OR". ARCH_SELECT_MEMORY_MODEL has no affect on
SELECT_MEMORY_MODEL if EXPERIMENTAL is always considered on. My
proposal was to deal with ARCH_SELECT_MEMORY_MODEL separately. Did I
misunderstand something?

-Kees

-- 
Kees Cook
Chrome OS Security
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