netdev - Re: [PATCH 08/40] mm: kmem_cache

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Message-ID: <Pine.LNX.4.64.0705041128270.24283@schroedinger.engr.sgi.com>
Date:	Fri, 4 May 2007 11:30:05 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	netdev@...r.kernel.org,
	Trond Myklebust <trond.myklebust@....uio.no>,
	Thomas Graf <tgraf@...g.ch>,
	David Miller <davem@...emloft.net>,
	James Bottomley <James.Bottomley@...elEye.com>,
	Mike Christie <michaelc@...wisc.edu>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Daniel Phillips <phillips@...gle.com>,
	Pekka Enberg <penberg@...helsinki.fi>
Subject: Re: [PATCH 08/40] mm: kmem_cache_objsize

On Fri, 4 May 2007, Peter Zijlstra wrote:

> > Ok so you really need the number of objects per page? If you know the 
> > number of objects then you can calculate the pages needed which would be 
> > the maximum memory needed?
> 
> Yes, that would work.

Hmmm... Maybe lets have

unsigned kmem_estimate_pages(struct kmem_cache *slab_cache, int objects)

which would calculate the worst case memory scenario for allocation the 
number of indicated objects?


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