diff options
| -rw-r--r-- | include/linux/mmzone.h | 13 | ||||
| -rw-r--r-- | mm/page_alloc.c | 5 |
2 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index a23923ba8263..28601fdfcdb2 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -717,6 +717,19 @@ typedef struct pglist_data { struct task_struct *kswapd; /* Protected by lock_memory_hotplug() */ int kswapd_max_order; enum zone_type classzone_idx; +#ifdef CONFIG_NUMA_BALANCING + /* + * Lock serializing the per destination node AutoNUMA memory + * migration rate limiting data. + */ + spinlock_t numabalancing_migrate_lock; + + /* Rate limiting time interval */ + unsigned long numabalancing_migrate_next_window; + + /* Number of pages migrated during the rate limiting time interval */ + unsigned long numabalancing_migrate_nr_pages; +#endif } pg_data_t; #define node_present_pages(nid) (NODE_DATA(nid)->node_present_pages) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 5953dc2d196f..ef025e20dbee 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -4449,6 +4449,11 @@ static void __paginginit free_area_init_core(struct pglist_data *pgdat, int ret; pgdat_resize_init(pgdat); +#ifdef CONFIG_NUMA_BALANCING + spin_lock_init(&pgdat->numabalancing_migrate_lock); + pgdat->numabalancing_migrate_nr_pages = 0; + pgdat->numabalancing_migrate_next_window = jiffies; +#endif init_waitqueue_head(&pgdat->kswapd_wait); init_waitqueue_head(&pgdat->pfmemalloc_wait); pgdat_page_cgroup_init(pgdat); |