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Date:	Mon, 11 Aug 2014 10:24:02 -0700
From:	Dave Hansen <>
To:	Jeremiah Mahler <>,
	David Rientjes <>
CC:	Thomas Gleixner <>,
	Ingo Molnar <>,
	"H. Peter Anvin" <>,,
	Rik van Riel <>, Mel Gorman <>,
	Andrew Morton <>,
Subject: Re: [PATCH v2 linux-next] arch/x86/mm: sparse 'tlb_single_page_flush_ceiling'

On 08/09/2014 12:38 AM, Jeremiah Mahler wrote:
> A sparse warning is generated about 'tlb_single_page_flush_ceiling'
> not being declared.
>   arch/x86/mm/tlb.c:177:15: warning: symbol
>   'tlb_single_page_flush_ceiling' was not declared. Should it be static?
> Since it isn't used anywhere outside this file, fix the warning by
> making it static.
> Also, optimize the use of this variable by adding the __read_mostly
> directive.

Looks fine to me.  It's definitely __read_mostly.

Acked-by: Dave Hansen <>
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