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mm: migrate: account THP NUMA migration counters correctly

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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]>
This commit is contained in:
Yang Shi
2021-06-30 20:47:30 -07:00
committed by Linus Torvalds
parent c5b5a3dd2c
commit c5fc5c3ae0
1 changed files with 4 additions and 3 deletions
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mm/migrate.c
+4 -3
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@@ -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;