diff options
| -rw-r--r-- | include/linux/mmzone.h | 3 | ||||
| -rw-r--r-- | include/linux/node.h | 5 | ||||
| -rw-r--r-- | mm/migrate.c | 13 | ||||
| -rw-r--r-- | mm/vmstat.c | 3 |
4 files changed, 21 insertions, 3 deletions
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index c9e6a50109b9..310b6e7ce58a 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -222,6 +222,9 @@ enum node_stat_item { #ifdef CONFIG_SWAP NR_SWAPCACHE, #endif +#ifdef CONFIG_NUMA_BALANCING + PGPROMOTE_SUCCESS, /* promote successfully */ +#endif NR_VM_NODE_STAT_ITEMS }; diff --git a/include/linux/node.h b/include/linux/node.h index bb21fd631b16..81bbf1c0afd3 100644 --- a/include/linux/node.h +++ b/include/linux/node.h @@ -181,4 +181,9 @@ static inline void register_hugetlbfs_with_node(node_registration_func_t reg, #define to_node(device) container_of(device, struct node, dev) +static inline bool node_is_toptier(int node) +{ + return node_state(node, N_CPU); +} + #endif /* _LINUX_NODE_H_ */ diff --git a/mm/migrate.c b/mm/migrate.c index c0d16f050fec..dc4adf979201 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -2069,6 +2069,7 @@ int migrate_misplaced_page(struct page *page, struct vm_area_struct *vma, pg_data_t *pgdat = NODE_DATA(node); int isolated; int nr_remaining; + unsigned int nr_succeeded; LIST_HEAD(migratepages); new_page_t *new; bool compound; @@ -2107,7 +2108,8 @@ int migrate_misplaced_page(struct page *page, struct vm_area_struct *vma, list_add(&page->lru, &migratepages); nr_remaining = migrate_pages(&migratepages, *new, NULL, node, - MIGRATE_ASYNC, MR_NUMA_MISPLACED, NULL); + MIGRATE_ASYNC, MR_NUMA_MISPLACED, + &nr_succeeded); if (nr_remaining) { if (!list_empty(&migratepages)) { list_del(&page->lru); @@ -2116,8 +2118,13 @@ int migrate_misplaced_page(struct page *page, struct vm_area_struct *vma, putback_lru_page(page); } isolated = 0; - } else - count_vm_numa_events(NUMA_PAGE_MIGRATE, nr_pages); + } + if (nr_succeeded) { + count_vm_numa_events(NUMA_PAGE_MIGRATE, nr_succeeded); + if (!node_is_toptier(page_to_nid(page)) && node_is_toptier(node)) + mod_node_page_state(pgdat, PGPROMOTE_SUCCESS, + nr_succeeded); + } BUG_ON(!list_empty(&migratepages)); return isolated; diff --git a/mm/vmstat.c b/mm/vmstat.c index 4057372745d0..846b670dd346 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1242,6 +1242,9 @@ const char * const vmstat_text[] = { #ifdef CONFIG_SWAP "nr_swapcached", #endif +#ifdef CONFIG_NUMA_BALANCING + "pgpromote_success", +#endif /* enum writeback_stat_item counters */ "nr_dirty_threshold", |