Looks good to me.
Thanks.
Acked-by: Yasunori Goto <[email protected]>
>
> From: Geoff Levand <[email protected]>
>
> SPARSEMEM_VMEMMAP needs to be a selectable config option to
> support building the kernel both with and without sparsemem
> vmemmap support. This selection is desirable for platforms
> which could be configured one way for platform specific
> builds and the other for multi-platform builds.
>
> Signed-off-by: Miguel Boton <[email protected]>
> Signed-off-by: Geoff Levand <[email protected]>
> ---
>
> Andrew,
>
> Please consider for 2.6.24.
>
> -Geoff
>
>
> mm/Kconfig | 15 +++++++--------
> 1 file changed, 7 insertions(+), 8 deletions(-)
>
> --- a/mm/Kconfig
> +++ b/mm/Kconfig
> @@ -112,18 +112,17 @@ config SPARSEMEM_EXTREME
> def_bool y
> depends on SPARSEMEM && !SPARSEMEM_STATIC
>
> -#
> -# SPARSEMEM_VMEMMAP uses a virtually mapped mem_map to optimise pfn_to_page
> -# and page_to_pfn. The most efficient option where kernel virtual space is
> -# not under pressure.
> -#
> config SPARSEMEM_VMEMMAP_ENABLE
> def_bool n
>
> config SPARSEMEM_VMEMMAP
> - bool
> - depends on SPARSEMEM
> - default y if (SPARSEMEM_VMEMMAP_ENABLE)
> + bool "Sparse Memory virtual memmap"
> + depends on SPARSEMEM && SPARSEMEM_VMEMMAP_ENABLE
> + default y
> + help
> + SPARSEMEM_VMEMMAP uses a virtually mapped memmap to optimise
> + pfn_to_page and page_to_pfn operations. This is the most
> + efficient option when sufficient kernel resources are available.
>
> # eventually, we can have this option just 'select SPARSEMEM'
> config MEMORY_HOTPLUG
>
>
--
Yasunori Goto
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