diff mbox series

migrate_pages: modify max number of pages to migrate in batch

Message ID 20240624044140.117196-1-lizhenneng@kylinos.cn (mailing list archive)
State New
Headers show
Series migrate_pages: modify max number of pages to migrate in batch | expand

Commit Message

Zhenneng Li June 24, 2024, 4:41 a.m. UTC 
We restrict the number of pages to be migrated to no more than
HPAGE_PMD_NR or NR_MAX_BATCHED_MIGRATION, but in fact, the
number of pages to be migrated may reach 2*HPAGE_PMD_NR-1 or 2
*NR_MAX_BATCHED_MIGRATION-1, it's not in inconsistent with the context.

Please refer to the patch: 42012e0436d4(migrate_pages: restrict number
of pages to migrate in batch)

Signed-off-by: Zhenneng Li <lizhenneng@kylinos.cn>
---
 mm/migrate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/mm/migrate.c b/mm/migrate.c
index 781979567f64..7a4b37aac9e8 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1961,7 +1961,7 @@  int migrate_pages(struct list_head *from, new_folio_t get_new_folio,
 			break;
 	}
 	if (nr_pages >= NR_MAX_BATCHED_MIGRATION)
-		list_cut_before(&folios, from, &folio2->lru);
+		list_cut_before(&folios, from, &folio->lru);
 	else
 		list_splice_init(from, &folios);
 	if (mode == MIGRATE_ASYNC)