linux-kernel - Re: [PATCH] include/linux/slab.h: new KFREE() macro.

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Date:	Tue, 2 Jan 2007 09:21:28 +0000
From:	Christoph Hellwig <hch@...radead.org>
To:	Pekka Enberg <penberg@...helsinki.fi>
Cc:	Amit Choudhary <amit2030@...il.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] include/linux/slab.h: new KFREE() macro.

On Mon, Jan 01, 2007 at 11:23:20PM +0200, Pekka Enberg wrote:
> NAK until you have actual callers for it. CONFIG_SLAB_DEBUG already
> catches use after free and double-free so I don't see the point of
> this.

And CONFIG_SLAB_DEBUG actually finds them for real using poisoning,
unlike setting the pointer to NULL which is too magic to catch most
bugs but rather papers over them.

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