From: Palmer Dabbelt <palmerdabb...@google.com> This is only defined (and useful) for CONFIG_NUMA, but isn't conditionally declared. This makes users a bit more of a headache to track down.
Signed-off-by: Palmer Dabbelt <palmerdabb...@google.com> --- include/linux/topology.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/topology.h b/include/linux/topology.h index 7634cd737061..15f02281bdf0 100644 --- a/include/linux/topology.h +++ b/include/linux/topology.h @@ -73,7 +73,9 @@ int arch_update_cpu_topology(void); * *improves* if allowed to reclaim memory and load balance tasks * between NUMA nodes 2-hops apart. */ +#ifdef CONFIG_NUMA extern int __read_mostly node_reclaim_distance; +#endif #ifndef PENALTY_FOR_NODE_WITH_CPUS #define PENALTY_FOR_NODE_WITH_CPUS (1) -- 2.30.1.766.gb4fecdf3b7-goog
