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Date: Tue, 17 Feb 2009 10:08:21 -0500 (EST)
From: Christoph Lameter <cl@linux-foundation.org>
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To: Johannes Weiner <hannes@cmpxchg.org>
cc: Andrew Morton <akpm@linux-foundation.org>,
       Pekka Enberg <penberg@cs.helsinki.fi>, linux-mm@kvack.org,
       linux-kernel@vger.kernel.org, Matt Mackall <mpm@selenic.com>,
       Nick Piggin <npiggin@suse.de>
Subject: Re: [patch 1/8] slab: introduce kzfree()
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References: <20090216142926.440561506@cmpxchg.org> <20090216144725.572446535@cmpxchg.org> <20090216152751.GA27520@cmpxchg.org>
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Why would you want to zero an object on release? Is this for security?

Please give us some rationale for this. Do we need free on zero now for
all allocators?