From: Pekka Enberg <penberg@cs.helsinki.fi>
Subject: Re: [PATCH] Export symbol ksize()
Date: Thu, 12 Feb 2009 17:55:04 +0200
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Cc: "Kirill A. Shutemov" <kirill@shutemov.name>,
  Christoph Lameter <cl@linux-foundation.org>,
  Matt Mackall <mpm@selenic.com>, linux-kernel@vger.kernel.org,
  linux-mm@kvack.org, linux-crypto@vger.kernel.org,
  Geert.Uytterhoeven@sonycom.com
To: Herbert Xu <herbert@gondor.apana.org.au>
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On Thu, Feb 12, 2009 at 12:45:21PM +0200, Pekka Enberg wrote:
> > 
> > Because the API was being widely abused in the nommu code, for example.
> > I'd rather not add it back for this special case which can be handled
> > otherwise.

On Thu, 2009-02-12 at 18:50 +0800, Herbert Xu wrote:
> I'm sorry but that's like banning the use of heaters just because
> they can abused and cause fires.
> 
> I think I've said this to you before but in networking we very much
> want to use ksize because the standard case of a 1500-byte packet
> has loads of extra room given by kmalloc which all goes to waste
> right now.
> 
> If we could use ksize then we can stuff loads of metadata in that
> space.

OK, fair enough, I applied Kirill's patch. Thanks.

			Pekka

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