unsigned int numa_scan_period;
unsigned int numa_scan_period_max;
int numa_preferred_nid;
- int numa_migrate_deferred;
unsigned long numa_migrate_retry;
u64 node_stamp; /* migration stamp */
struct callback_head numa_work;
* Scheduling placement decisions are made based on the these counts.
* The values remain static for the duration of a PTE scan
*/
- unsigned long *numa_faults;
+ unsigned long *numa_faults_memory;
unsigned long total_numa_faults;
/*
* numa_faults_buffer records faults per node during the current
- * scan window. When the scan completes, the counts in numa_faults
- * decay and these values are copied.
+ * scan window. When the scan completes, the counts in
+ * numa_faults_memory decay and these values are copied.
*/
- unsigned long *numa_faults_buffer;
+ unsigned long *numa_faults_buffer_memory;
+
+ /*
+ * Track the nodes the process was running on when a NUMA hinting
+ * fault was incurred.
+ */
+ unsigned long *numa_faults_cpu;
+ unsigned long *numa_faults_buffer_cpu;
/*
* numa_faults_locality tracks if faults recorded during the last
extern pid_t task_numa_group_id(struct task_struct *p);
extern void set_numabalancing_state(bool enabled);
extern void task_numa_free(struct task_struct *p);
-
-extern unsigned int sysctl_numa_balancing_migrate_deferred;
+extern bool should_numa_migrate_memory(struct task_struct *p, struct page *page,
+ int src_nid, int dst_cpu);
#else
static inline void task_numa_fault(int last_node, int node, int pages,
int flags)
static inline void task_numa_free(struct task_struct *p)
{
}
+static inline bool should_numa_migrate_memory(struct task_struct *p,
+ struct page *page, int src_nid, int dst_cpu)
+{
+ return true;
+}
#endif
static inline struct pid *task_pid(struct task_struct *task)
}
#endif
+static inline void current_clr_polling(void)
+{
+ __current_clr_polling();
+
+ /*
+ * Ensure we check TIF_NEED_RESCHED after we clear the polling bit.
+ * Once the bit is cleared, we'll get IPIs with every new
+ * TIF_NEED_RESCHED and the IPI handler, scheduler_ipi(), will also
+ * fold.
+ */
+ smp_mb(); /* paired with resched_task() */
+
+ preempt_fold_need_resched();
+}
+
static __always_inline bool need_resched(void)
{
return unlikely(tif_need_resched());