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

From: KOSAKI Motohiro
Date: Mon Aug 25 2008 - 19:31:41 EST


Hi Mike,

> >>> + num_cpus_per_node = cpus_weight_nr(node_to_cpumask(node));
>
> I think the more correct usage would be:
>
> {
> node_to_cpumask_ptr(v, node);
> num_cpus_per_node = cpus_weight_nr(*v);
> max /= num_cpus_per_node;
>
> return max(max, min_pages);
> }
>
> which should load 'v' with a pointer to the node_to_cpumask_map[node] entry
> [and avoid using stack space for the cpumask_t variable for those arch's
> that define a node_to_cpumask_map (or similar).] Otherwise a local cpumask_t
> variable '_v' is created to which 'v' is pointing to and thus can be used
> directly as an arg to the cpu_xxx ops.

Thank you for your attension.
please see my latest patch (http://marc.info/?l=linux-mm&m=121966459713193&w=2)
it do that.



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