linux-kernel - Re: [SLUB] change kmem_cache->align to record the real alignment

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Message-ID: <4A745F1F.50304@cs.helsinki.fi>
Date:	Sat, 01 Aug 2009 18:28:31 +0300
From:	Pekka Enberg <penberg@...helsinki.fi>
To:	"Zhang, Yanmin" <yanmin_zhang@...ux.intel.com>
CC:	Christoph Lameter <cl@...ux-foundation.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [SLUB] change kmem_cache->align to record the real alignment

Zhang, Yanmin wrote:
> kmem_cache->align records the original align parameter value specified
> by users. Function calculate_alignment might change it based on cache
> line size. So change kmem_cache->align correspondingly.
> 
> Signed-off-by: Zhang Yanmin <yanmin_zhang@...ux.intel.com>
> 
> ---
> 
> --- linux-2.6.31-rc3/mm/slub.c	2009-07-20 00:29:39.000000000 +0800
> +++ linux-2.6.31-rc3_slubalign/mm/slub.c	2009-07-30 01:19:29.000000000 +0800
> @@ -2400,6 +2400,7 @@ static int calculate_sizes(struct kmem_c
>  	 * on bootup.
>  	 */
>  	align = calculate_alignment(flags, align, s->objsize);
> +	s->align = align;
>  
>  	/*
>  	 * SLUB stores one object immediately after another beginning from
> 
> 

Applied, thanks!
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