linux-kernel - Re: SLUB defrag pull request?

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Message-ID: <Pine.LNX.4.64.0810221400340.26671@quilx.com>
Date:	Wed, 22 Oct 2008 14:01:28 -0700 (PDT)
From:	Christoph Lameter <cl@...ux-foundation.org>
To:	Pekka Enberg <penberg@...helsinki.fi>
cc:	Miklos Szeredi <miklos@...redi.hu>, nickpiggin@...oo.com.au,
	hugh@...itas.com, linux-mm@...ck.org,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	akpm@...ux-foundation.org
Subject: Re: SLUB defrag pull request?

On Wed, 22 Oct 2008, Pekka Enberg wrote:

> Actually, when debugging is enabled, it's customary to poison the
> object, for example (see free_debug_processing() in mm/slub.c). So we
> really can't "easily ensure" that in the allocator unless we by-pass
> all the current debugging code.

We may be talking of different frees here. Maybe what he means by freeing 
is that the object was put on the lru? And we understand a kfree().
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