netdev - Re: [rfc][patch 1/3] slub: fix small HWCACHE

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Message-ID: <Pine.LNX.4.64.0803061825120.29527@schroedinger.engr.sgi.com>
Date:	Thu, 6 Mar 2008 18:26:49 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	Nick Piggin <npiggin@...e.de>
cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, yanmin_zhang@...ux.intel.com,
	dada1@...mosbay.com
Subject: Re: [rfc][patch 1/3] slub: fix small HWCACHE_ALIGN alignment

On Fri, 7 Mar 2008, Nick Piggin wrote:

> That's just because you (apparently still) have a misconception about what
> the flag is supposed to be for. It is not for aligning things to the start
> of a cacheline boundary. It is not for avoiding false sharing on SMP. It

The alignment of the object to the start of a cacheline is the obvious 
meaning and that is also reflected in the comment in slab.h.

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