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Date: Mon, 31 Aug 2009 17:29:19 -0700
From: Jeremy Fitzhardinge <jeremy@goop.org>
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Subject: Re: [PATCH] x86: reuse the boot-time mappings of fixed_addresses
References: <4A90AADE.20307@gmail.com> <20090829110046.GA6812@elte.hu> <4A997088.60908@zytor.com> <20090831082632.GB15619@elte.hu>
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To: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>, Xiao Guangrong <ericxiao.gr@gmail.com>, Andrew Morton <akpm@linux-foundation.org>, Rusty Russell <rusty@rustcorp.com.au>, Jens Axboe <jens.axboe@oracle.com>, Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>, LKML <linux-kernel@vger.kernel.org>, linux-mm@kvack.org, x86@kernel.org, Thomas Gleixner <tglx@linutronix.de>
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On 08/31/09 01:26, Ingo Molnar wrote:
>>> I'm wondering, how much space do we save this way, on a typical bootup 
>>> on a typical PC?
>>>
>>>       
>> Not a huge lot... a few dozen pages.
>>     
> I guess it's still worth doing - what do you think?
>   

It hardly seems worth it, but I guess it isn't much code.  Will having
an apparent overlap of vmalloc and fixmap spaces confuse anything?

    J

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