linux-kernel - Re: [PATCH] x86/mm: Assign the initail value to the pmd

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Message-ID: <20150720072629.GA46717@huangminfeis-MacBook-Pro.local>
Date:	Mon, 20 Jul 2015 15:26:29 +0800
From:	Minfei Huang <mnfhuang@...il.com>
To:	Minfei Huang <mhuang@...hat.com>
Cc:	tglx@...utronix.de, mingo@...hat.com, hpa@...or.com,
	akpm@...ux-foundation.org, tony.luck@...el.com,
	wangnan0@...wei.com, david.vrabel@...rix.com, yinghai@...nel.org,
	x86@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86/mm: Assign the initail value to the pmd_idx

ping.

Can someone help review this patch?

Thanks
Minfei

On 07/12/15 at 08:18P, Minfei Huang wrote:
> From: Minfei Huang <mnfhuang@...il.com>
> 
> The variable pmd_idx is undefined, when we try to start the loop to
> calculate the page.
> 
> Assign the proper value which indexes the start address to make it work
> well.
> 
> Signed-off-by: Minfei Huang <mnfhuang@...il.com>
> ---
>  arch/x86/mm/init_32.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
> index 8340e45..68aec42 100644
> --- a/arch/x86/mm/init_32.c
> +++ b/arch/x86/mm/init_32.c
> @@ -137,6 +137,7 @@ page_table_range_init_count(unsigned long start, unsigned long end)
>  
>  	vaddr = start;
>  	pgd_idx = pgd_index(vaddr);
> +	pmd_idx = pmd_index(vaddr);
>  
>  	for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd_idx++) {
>  		for (; (pmd_idx < PTRS_PER_PMD) && (vaddr != end);
> -- 
> 2.2.2
> 
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