netdev - Re: [rfc][patch 2/3] slab: introduce SMP alignment

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Date:	Mon, 3 Mar 2008 12:09:43 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	Nick Piggin <npiggin@...e.de>
cc:	netdev@...r.kernel.org,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	yanmin_zhang@...ux.intel.com, David Miller <davem@...emloft.net>,
	Eric Dumazet <dada1@...mosbay.com>
Subject: Re: [rfc][patch 2/3] slab: introduce SMP alignment

On Mon, 3 Mar 2008, Nick Piggin wrote:

> > Mandatory alignment are specified as a parameter to kmem_cache_create not 
> > as flags.
> 
> Not after this patch.

You want two ways of specifying alignments?

> > Ycan specify the alignment as a parameter. i.e. L1_CACHE_BYTES 
> > or cache_line_size().
> 
> We don't want either of those, though.
> 
> I don't see why this is a problem to do inside slab.

I am not sure why you need to have two ways of specifying alignments.
 
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