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authorYang Shi <[email protected]>2021-06-30 18:51:45 -0700
committerLinus Torvalds <[email protected]>2021-06-30 20:47:30 -0700
commitc5fc5c3ae0c849c713c4291addb5fce699ad0972 (patch)
treebcb85c2b38f28aa865708f524c916bbbc3a5a0ba
parentc5b5a3dd2c1fa61049b7789ce596faff4d659a61 (diff)
mm: migrate: account THP NUMA migration counters correctly
Now both base page and THP NUMA migration is done via migrate_misplaced_page(), keep the counters correctly for THP. Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Yang Shi <[email protected]> Acked-by: Mel Gorman <[email protected]> Cc: Christian Borntraeger <[email protected]> Cc: Gerald Schaefer <[email protected]> Cc: Heiko Carstens <[email protected]> Cc: Huang Ying <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: Kirill A. Shutemov <[email protected]> Cc: Michal Hocko <[email protected]> Cc: Vasily Gorbik <[email protected]> Cc: Zi Yan <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
-rw-r--r--mm/migrate.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/mm/migrate.c b/mm/migrate.c
index b7e330900b86..e191314f0f19 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -2117,6 +2117,7 @@ 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
@@ -2155,13 +2156,13 @@ 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;