linux-kernel - Re: [PATCH] x86: make sure wakeup code is below 1M -v2

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Date:	Fri, 13 Nov 2009 09:12:05 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>, Pavel Machek <pavel@....cz>,
	Yinghai Lu <yinghai@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Len Brown <lenb@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	pm list <linux-pm@...ts.linux-foundation.org>
Subject: Re: [PATCH] x86: make sure wakeup code is below 1M -v2


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

> On 11/12/2009 11:36 PM, Ingo Molnar wrote:
> > 
> > Physical constraints to allocations (which this is) should be expressed 
> > early and with high priority, to make sure they can be met.
> > 
> 
> Indeed, and in this case this means before bootmem allocator initialization.

The other advantage of Yinghai's patch is that it removes a bootmem 
usage from x86, which moves us a bit forward on the road to remove the 
bootmem allocator altogether and go from early allocators to slab 
straight away.

	Ingo
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