linux-kernel - Re: [patch 04/10] SLUB: Avoid checking for a valid object before zeroing on the fast path

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Message-ID: <Pine.LNX.4.64.0710281509510.6766@sbz-30.cs.Helsinki.FI>
Date:	Sun, 28 Oct 2007 15:10:03 +0200 (EET)
From:	Pekka J Enberg <penberg@...helsinki.fi>
To:	Christoph Lameter <clameter@....com>
cc:	Matthew Wilcox <matthew@....cx>, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org
Subject: Re: [patch 04/10] SLUB: Avoid checking for a valid object before
 zeroing on the fast path

On Sat, 27 Oct 2007, Christoph Lameter wrote:
> The fast path always results in a valid object. Move the check
> for the NULL pointer to the slow branch that calls
> __slab_alloc. Only __slab_alloc can return NULL if there is no
> memory available anymore and that case is exceedingly rare.

Reviewed-by: Pekka Enberg <penberg@...helsinki.fi>
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