linux-kernel - Re: slab: setup allocators earlier in the boot sequence

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Date:	Sat, 13 Jun 2009 00:00:59 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Christoph Lameter <cl@...ux-foundation.org>
Cc:	Pekka Enberg <penberg@...helsinki.fi>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel list <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>, mingo@...e.hu,
	akpm@...ux-foundation.org, npiggin@...e.de
Subject: Re: slab: setup allocators earlier in the boot sequence

On Fri, 2009-06-12 at 09:49 -0400, Christoph Lameter wrote:
> On Fri, 12 Jun 2009, Pekka Enberg wrote:
> 
> > So I am sending the GFP_NOWAIT conversion for boot code even though you
> > didn't seem to like it (but didn't explicitly NAK) as it fixes problems
> > on x86.
> 
> The use GFP_NOWAIT means that the caller sites are still special cased for
> an early boot situation. After bootstrap is complete the sites may use
> GFP_KERNEL instead. Bad.

Amen :-)

Ben.


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