linux-kernel - Re: [PATCH 0/5] make slab gfp fair

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Message-ID: <Pine.LNX.4.64.0705141324340.12479@schroedinger.engr.sgi.com>
Date:	Mon, 14 May 2007 13:25:02 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
cc:	Matt Mackall <mpm@...enic.com>, linux-kernel@...r.kernel.org,
	linux-mm@...ck.org, Thomas Graf <tgraf@...g.ch>,
	David Miller <davem@...emloft.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Daniel Phillips <phillips@...gle.com>,
	Pekka Enberg <penberg@...helsinki.fi>
Subject: Re: [PATCH 0/5] make slab gfp fair

On Mon, 14 May 2007, Peter Zijlstra wrote:

> > > The thing is; I'm not needing any speed, as long as the machine stay
> > > alive I'm good. However others are planing to build a full reserve based
> > > allocator to properly fix the places that now use __GFP_NOFAIL and
> > > situation such as in add_to_swap().
> > 
> > Well I have version of SLUB here that allows you do redirect the alloc 
> > calls at will. Adds a kmem_cache_ops structure and in the kmem_cache_ops 
> > structure you can redirect allocation and freeing of slabs (not objects!) 
> > at will. Would that help?
> 
> I'm not sure; I need kmalloc as well.

We could add a kmalloc_ops structuret to allow redirects?

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