Dan Williams <[email protected]> writes:

> Update numa_map_to_online_node() to stop falling back to numa node 0
> when the input is NUMA_NO_NODE. Also, skip the lookup if @node is
> online. This makes the routine compatible with other arch node mapping
> routines.

Reviewed-by: Aneesh Kumar K.V <[email protected]>
>
> Reported-by: Aneesh Kumar K.V <[email protected]>
> Signed-off-by: Dan Williams <[email protected]>
> ---
>  mm/mempolicy.c |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/mm/mempolicy.c b/mm/mempolicy.c
> index e2d8dd21ce9d..d618121bcc17 100644
> --- a/mm/mempolicy.c
> +++ b/mm/mempolicy.c
> @@ -137,8 +137,8 @@ int numa_map_to_online_node(int node)
>  {
>       int min_node;
>  
> -     if (node == NUMA_NO_NODE)
> -             node = 0;
> +     if (node == NUMA_NO_NODE || node_online(node))
> +             return node;
>  
>       min_node = node;
>       if (!node_online(node)) {
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