[UPDATE PATCH 10/10] mm/migrate.c: call detach_page_private to cleanup code

From: Guoqing Jiang
Date: Tue May 19 2020 - 17:41:28 EST


We can cleanup code a little by call detach_page_private here.

Signed-off-by: Guoqing Jiang <guoqing.jiang@xxxxxxxxxxxxxxx>
---
Add the cast to fix type mismatch warning, sorry for the mistake.

mm/migrate.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/mm/migrate.c b/mm/migrate.c
index 7160c1556f79..44546d407e40 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -797,10 +797,7 @@ static int __buffer_migrate_page(struct address_space *mapping,
if (rc != MIGRATEPAGE_SUCCESS)
goto unlock_buffers;

- ClearPagePrivate(page);
- set_page_private(newpage, page_private(page));
- set_page_private(page, 0);
- put_page(page);
+ set_page_private(newpage, (unsigned long)detach_page_private(page));
get_page(newpage);

bh = head;
--
2.17.1