Re: [PATCH 8/9] mm: implement split page table lock for PMD level

[Dave Hansen]

On 09/13/2013 06:06 AM, Kirill A. Shutemov wrote:
> +config ARCH_ENABLE_SPLIT_PMD_PTLOCK
> +	boolean
> +
> +config SPLIT_PMD_PTLOCK_CPUS
> +	int
> +	# hugetlb hasn't converted to split locking yet
> +	default "999999" if HUGETLB_PAGE
> +	default "32" if ARCH_ENABLE_SPLIT_PMD_PTLOCK
> +	default "999999"

Is there a reason we should have separate config knobs for this from
SPLIT_PTLOCK_CPUS?  Seem a bit silly.
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