linux-kernel - Re: [PATCH] THE LINUX/I386 BOOT PROTOCOL

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Date:	Wed, 30 Aug 2006 19:31:14 +0200
From:	Andi Kleen <ak@...e.de>
To:	Alon Bar-Lev <alon.barlev@...il.com>
Cc:	"H. Peter Anvin" <hpa@...or.com>,
	Matt Domsch <Matt_Domsch@...l.com>,
	Andrew Morton <akpm@...l.org>, linux-kernel@...r.kernel.org,
	johninsd@....rr.com
Subject: Re: [PATCH] THE LINUX/I386 BOOT PROTOCOL - Breaking the 256 limit (ping)

On Wednesday 30 August 2006 19:06, Alon Bar-Lev wrote:

> > 
> > And the other thing is that this will cost memory. Either make
> > it dependend on !CONFIG_SMALL or fix the boot code to save the 
> > command line into a kmalloc'ed buffer of the right size and __init 
> > the original one
> 
> I don't mind doing either... Any preference for one of them? The
> kmalloc approach seems nicer..

kmalloc is better yes. You just have to do it after kmalloc is up
and running and make sure the users before reference the __init'ed version.
I suspect only /proc/cmdline will need the kmalloc version after booting, 
nobody else should look at the command line.

-Andi
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