linux-kernel - Re: [13/14] vcompound: Use vcompound for swap

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Message-ID: <Pine.LNX.4.64.0803251043140.15870@schroedinger.engr.sgi.com>
Date:	Tue, 25 Mar 2008 10:45:06 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Andi Kleen <andi@...stfloor.org>
cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org
Subject: Re: [13/14] vcompound: Use vcompound for swap_map

On Tue, 25 Mar 2008, Andi Kleen wrote:

> I liked your idea of fixing compound pages to not rely on order
> better. Ok it is likely more work to implement @)

Right. It just requires a page allocator rewrite. Which is overdue 
anyways given the fastpath issues. Volunteers?

> Also if anything preserving memory should be default, but maybe
> skippable a with __GFP_GO_FAST flag.

Well. Guess we need a definition of preserving memory. All allocations 
typically have some kind of overhead.


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