From: Ze Zuo zuoze1@huawei.com
Now both base page and THP NUMA migration is also done via migrate_misplaced_page(), keep the counters correctly for THP.
Signed-off-by: Ze Zuo zuoze1@huawei.com --- mm/migrate.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/mm/migrate.c b/mm/migrate.c index d55d0d1a6b89..a3f9cbbfbfe5 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -2160,6 +2160,7 @@ int migrate_misplaced_page(struct page *page, struct vm_area_struct *vma, LIST_HEAD(migratepages); new_page_t *new; bool compound; + unsigned int nr_pages = thp_nr_pages(page);
/* * PTE mapped THP or HugeTLB page can't reach here so the page could @@ -2198,13 +2199,13 @@ int migrate_misplaced_page(struct page *page, struct vm_area_struct *vma, if (nr_remaining) { if (!list_empty(&migratepages)) { list_del(&page->lru); - dec_node_page_state(page, NR_ISOLATED_ANON + - page_is_file_lru(page)); + mod_node_page_state(page_pgdat(page), NR_ISOLATED_ANON + + page_is_file_lru(page), -nr_pages); putback_lru_page(page); } isolated = 0; } else - count_vm_numa_event(NUMA_PAGE_MIGRATE); + count_vm_numa_events(NUMA_PAGE_MIGRATE, nr_pages); BUG_ON(!list_empty(&migratepages)); return isolated;