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SubjectRe: [PATCH 3/3] mm: Introduce HAVE_ARCH_TRANSPARENT_HUGEPAGE
Hi Andrew,

On Thu, 13 Sep 2012 12:05:14 -0700 Andrew Morton <akpm@linux-foundation.org> 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@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/
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