Re: [RFC][PATCH 2/2] quicklist shouldn't be proportional to # of CPUs

[KOSAKI Motohiro]

>> IA64 seems to be one of the few platforms to define this as a macro
>> evaluating to the node-to-cpumask array entry, so it's clear what
>> platform Motohiro-san did build testing on :-)
>
> Seems to compile OK on x86_32, x86_64, ia64 and powerpc for some reason.
>
> This seems to fix things on sparc64:
>
> --- a/mm/quicklist.c~mm-quicklist-shouldnt-be-proportional-to-number-of-cpus-fix
> +++ a/mm/quicklist.c
> @@ -28,7 +28,7 @@ static unsigned long max_pages(unsigned
>        unsigned long node_free_pages, max;
>        int node = numa_node_id();
>        struct zone *zones = NODE_DATA(node)->node_zones;
> -       int num_cpus_per_node;
> +       cpumask_t node_cpumask;
>
>        node_free_pages =
>  #ifdef CONFIG_ZONE_DMA
> @@ -41,8 +41,8 @@ static unsigned long max_pages(unsigned
>
>        max = node_free_pages / FRACTION_OF_NODE_MEM;
>
> -       num_cpus_per_node = cpus_weight_nr(node_to_cpumask(node));
> -       max /= num_cpus_per_node;
> +       node_cpumask = node_to_cpumask(node);
> +       max /= cpus_weight_nr(node_cpumask);
>
>        return max(max, min_pages);
>  }

Thank you!!
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