linux-kernel - Re: [RFC PATCH 0/3] Reduce searching in the page allocator fast-path

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Message-ID: <alpine.DEB.1.10.0908181019130.32284@gentwo.org>
Date:	Tue, 18 Aug 2009 10:22:01 -0400 (EDT)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Mel Gorman <mel@....ul.ie>
cc:	Linux Memory Management List <linux-mm@...ck.org>,
	Nick Piggin <npiggin@...e.de>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [RFC PATCH 0/3] Reduce searching in the page allocator
 fast-path


This could be combined with the per cpu ops patch that makes the page
allocator use alloc_percpu for its per cpu data needs. That in turn would
allow the use of per cpu atomics in the hot paths, maybe we can
get to a point where we can drop the irq disable there.



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