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Date: Thu, 26 Jul 2007 10:51:23 -0700 (PDT)
From: Christoph Lameter <clameter@sgi.com>
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To: Peter Zijlstra <peterz@infradead.org>
cc: Pekka Enberg <penberg@cs.helsinki.fi>, Ingo Molnar <mingo@elte.hu>,
       Michal Piotrowski <michal.k.k.piotrowski@gmail.com>,
       Andrew Morton <akpm@linux-foundation.org>, linux-kernel@vger.kernel.org
Subject: Re: [bug] SLUB & freeing locks [was: Re: 2.6.23-rc1: known regressions
 with patches]
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Note that debug_check... adds more code to the slab_free hotpath which 
will have a significant performance impact if lockdep is enabled.

Acked-by: Christoph Lameter <clameter@sgi.com>