Re: [PATCH 3/3] mm: Introduce HAVE_ARCH_TRANSPARENT_HUGEPAGE

[Stephen Rothwell]

Hi Andrew,

On Thu, 13 Sep 2012 12:05:14 -0700 Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote:
>
> diff -puN arch/x86/Kconfig~mm-introduce-have_arch_transparent_hugepage arch/x86/Kconfig
> --- a/arch/x86/Kconfig~mm-introduce-have_arch_transparent_hugepage
> +++ a/arch/x86/Kconfig
> @@ -83,7 +83,6 @@ config X86
>  	select IRQ_FORCED_THREADING
>  	select USE_GENERIC_SMP_HELPERS if SMP
>  	select HAVE_BPF_JIT if X86_64
> -	select HAVE_ARCH_TRANSPARENT_HUGEPAGE

Why not
	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if MMU

>  	select CLKEVT_I8253
>  	select ARCH_HAVE_NMI_SAFE_CMPXCHG
>  	select GENERIC_IOMAP
> @@ -1330,6 +1329,10 @@ config ILLEGAL_POINTER_VALUE
>         default 0 if X86_32
>         default 0xdead000000000000 if X86_64
>  
> +config HAVE_ARCH_TRANSPARENT_HUGEPAGE
> +       def_bool y
> +       depends on MMU
> +

-- 
Cheers,
Stephen Rothwell                    sfr@xxxxxxxxxxxxxxxx
http://www.canb.auug.org.au/~sfr/

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