linux-kernel - Re: mm: slab - __cache

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Message-ID: <20081120182437.GA22100@localhost>
Date:	Thu, 20 Nov 2008 21:24:37 +0300
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	Christoph Lameter <cl@...ux-foundation.org>
Cc:	Pekka Enberg <penberg@...helsinki.fi>,
	LKML <linux-kernel@...r.kernel.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: mm: slab - __cache_alloc NULL prefetch fix

[Christoph Lameter - Thu, Nov 20, 2008 at 12:16:28PM -0600]
| On Thu, 20 Nov 2008, Cyrill Gorcunov wrote:
| 
| > even having prefetch(NULL) as valid we do check if
| > object is not NULL anyway so I thought there is no
| > need to prefetch(NULL) in case of fail.
| 
| The object is only checked if SLAB_DEBUG is on.
| 

My fault Christoph, I've been messed by kmemcheck_slab_alloc
which in turn actually becomes zero function if not tuned on.
So -- all is fine, sorry for noise.

		- Cyrill -
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