Re: [PATCH 3/4] pagemap: export KPF_THP

[Andrew Morton]

On Wed, 21 Dec 2011 17:23:47 -0500
Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx> wrote:

> This flag shows that a given pages is a subpage of transparent hugepage.
> It helps us debug and test kernel by showing physical address of thp.
>
> ...
>
> --- 3.2-rc5.orig/include/linux/kernel-page-flags.h
> +++ 3.2-rc5/include/linux/kernel-page-flags.h
> @@ -30,6 +30,7 @@
>  #define KPF_NOPAGE		20
>  
>  #define KPF_KSM			21
> +#define KPF_THP			22
>  

Please also update and test Documentation/vm/page-types.c.
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