linux-kernel - Re: [PATCH] [1/8] CPA: Fix gbpages support in try_preserve_lage

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Date:	Mon, 11 Feb 2008 10:45:29 +0100 (CET)
From:	Thomas Gleixner <tglx@...utronix.de>
To:	Andi Kleen <ak@...e.de>
cc:	mingo@...e.hu, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [1/8] CPA: Fix gbpages support in
 try_preserve_lage_page

On Mon, 11 Feb 2008, Andi Kleen wrote:

> 
> Use correct page sizes and masks for GB pages in try_preserve_large_page()
> 
> This prevents a boot hang on a GB capable system with CONFIG_DIRECT_GBPAGES
> enabled.

Doh, yes. Applied.

Thanks,
	tglx

> Signed-off-by: Andi Kleen <ak@...e.de>
> 
> ---
>  arch/x86/mm/pageattr.c |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> Index: linux/arch/x86/mm/pageattr.c
> ===================================================================
> --- linux.orig/arch/x86/mm/pageattr.c
> +++ linux/arch/x86/mm/pageattr.c
> @@ -278,8 +278,8 @@ try_preserve_large_page(pte_t *kpte, uns
>  		break;
>  #ifdef CONFIG_X86_64
>  	case PG_LEVEL_1G:
> -		psize = PMD_PAGE_SIZE;
> -		pmask = PMD_PAGE_MASK;
> +		psize = PUD_PAGE_SIZE;
> +		pmask = PUD_PAGE_MASK;
>  		break;
>  #endif
>  	default:
> 
--
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