Re: [PATCH 2/3] mm,compaction: Add COMPACTION_BUILD

[KOSAKI Motohiro]

> To avoid #ifdef COMPACTION in a following patch, this patch adds
> COMPACTION_BUILD that is similar to NUMA_BUILD in operation.
> 
> Signed-off-by: Mel Gorman <mel@xxxxxxxxx>
> ---
>  include/linux/kernel.h |    7 +++++++
>  1 files changed, 7 insertions(+), 0 deletions(-)
> 
> diff --git a/include/linux/kernel.h b/include/linux/kernel.h
> index 450092c..c00c5d1 100644
> --- a/include/linux/kernel.h
> +++ b/include/linux/kernel.h
> @@ -826,6 +826,13 @@ struct sysinfo {
>  #define NUMA_BUILD 0
>  #endif
>  
> +/* This helps us avoid #ifdef CONFIG_COMPACTION */
> +#ifdef CONFIG_COMPACTION
> +#define COMPACTION_BUILD 1
> +#else
> +#define COMPACTION_BUILD 0
> +#endif
> +

Looks good, of cource. but I think this patch can be fold [3/3] beucase 
it doesn't have any change.



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