linux-kernel - Re: [PATCH] slab: ensure cache_alloc

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Message-ID: <Pine.LNX.4.64.0702210950310.24344@schroedinger.engr.sgi.com>
Date:	Wed, 21 Feb 2007 09:51:04 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	Pekka J Enberg <penberg@...helsinki.fi>
cc:	akpm@...ux-foundation.org, mcr@...delman.ca,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] slab: ensure cache_alloc_refill terminates

On Wed, 21 Feb 2007, Pekka J Enberg wrote:

> +		 */
> +		BUG_ON(slabp->inuse < 0 || slabp->inuse >= cachep->num);
> +
>  		while (slabp->inuse < cachep->num && batchcount--) {

I think you only need to check for <0. If slabp->inuse > cachep->num then 
the loop will not be taken.
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