#ifdef CONFIG_NUMA_BALANCING
extern void task_numa_fault(int last_node, int node, int pages, bool migrated);
+extern pid_t task_numa_group_id(struct task_struct *p);
extern void set_numabalancing_state(bool enabled);
#else
static inline void task_numa_fault(int last_node, int node, int pages,
bool migrated)
{
}
+static inline pid_t task_numa_group_id(struct task_struct *p)
+{
+ return 0;
+}
static inline void set_numabalancing_state(bool enabled)
{
}