linux-kernel - Re: [PATCH RFC] x86: add brk allocation for very, very early allocations

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Message-ID: <49A85AF8.8030009@zytor.com>
Date:	Fri, 27 Feb 2009 13:28:24 -0800
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
CC:	Yinghai Lu <yinghai@...nel.org>, Ingo Molnar <mingo@...e.hu>,
	the arch/x86 maintainers <x86@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH RFC] x86: add brk allocation for very, very early allocations

Jeremy Fitzhardinge wrote:
> 
>> This reminds me... is your intent that the BRK is permanent (unless
>> explicitly freed on a page by page basis) or part of the init memory
>> that is flushed?
> 
> Permanent.  I'm using it to allocate things which are the moral
> equivalent of the kernel pagetables.
> 

Cool; just wanted it noted what the rules were.  Even more so the reason
to fold as many possible uses as possible into this new mechanism.

	-hpa

P.S. Could you send me the updates to the dom0 patches you said you had?

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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