linux-kernel - Re: [PATCH 2/5] mm: slab allocation fairness

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Message-ID: <Pine.LNX.4.64.0705140850540.10442@schroedinger.engr.sgi.com>
Date:	Mon, 14 May 2007 08:51:50 -0700 (PDT)
From:	Christoph Lameter <clameter@....com>
To:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Thomas Graf <tgraf@...g.ch>,
	David Miller <davem@...emloft.net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Daniel Phillips <phillips@...gle.com>,
	Pekka Enberg <penberg@...helsinki.fi>,
	Matt Mackall <mpm@...enic.com>
Subject: Re: [PATCH 2/5] mm: slab allocation fairness

On Mon, 14 May 2007, Peter Zijlstra wrote:

> @@ -3182,13 +3192,13 @@ static inline void *____cache_alloc(stru
>  	check_irq_off();
>  
>  	ac = cpu_cache_get(cachep);
> -	if (likely(ac->avail)) {
> +	if (likely(ac->avail) && !slab_insufficient_rank(cachep, rank)) {
>  		STATS_INC_ALLOCHIT(cachep);
>  		ac->touched = 1;

Hotpath modifications.

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