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

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Message-Id: <1244793879.30512.19.camel@penberg-laptop>
Date:	Fri, 12 Jun 2009 11:04:39 +0300
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	Nick Piggin <npiggin@...e.de>
Cc:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Linux Kernel list <linux-kernel@...r.kernel.org>,
	linux-mm <linux-mm@...ck.org>, mingo@...e.hu,
	cl@...ux-foundation.org, akpm@...ux-foundation.org
Subject: Re: slab: setup allocators earlier in the boot sequence

Hi Nick,

On Fri, 2009-06-12 at 10:02 +0200, Nick Piggin wrote:
> Fair enough, but this can be done right down in the synchronous
> reclaim path in the page allocator. This will catch more cases
> of code using the page allocator directly, and should be not
> as hot as the slab allocator.

So you want to push the local_irq_enable() to the page allocator too? We
can certainly do that but I think we ought to wait for Andrew to merge
Mel's patches to mainline first, OK?

			Pekka

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