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SubjectRe: [PATCH RFC 3/5] sched,numa: preparations for complex topology placement
On Wed, Oct 08, 2014 at 03:37:28PM -0400, riel@redhat.com wrote:
> From: Rik van Riel <riel@redhat.com>
>
> Preparatory patch for adding NUMA placement on systems with
> complex NUMA topology. Also fix a potential divide by zero
> in group_weight()
>
> Signed-off-by: Rik van Riel <riel@redhat.com>
> ---
> include/linux/topology.h | 1 +
> kernel/sched/core.c | 2 +-
> kernel/sched/fair.c | 57 +++++++++++++++++++++++++++++++-----------------
> 3 files changed, 39 insertions(+), 21 deletions(-)
>
> diff --git a/include/linux/topology.h b/include/linux/topology.h
> index bf40d46..f8dfad9 100644
> --- a/include/linux/topology.h
> +++ b/include/linux/topology.h
> @@ -47,6 +47,7 @@
> if (nr_cpus_node(node))
>
> int arch_update_cpu_topology(void);
> +extern int sched_domains_numa_levels;
> extern int node_hops(int i, int j);
>

I'm not sure we want to share this globally, please consider using
kernel/sched/sched.h


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