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

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We can cleanup code a little by call detach_page_private here.

Signed-off-by: Guoqing Jiang <guoqing.jiang@xxxxxxxxxxxxxxx>
---
No change since RFC V3.

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

diff --git a/mm/migrate.c b/mm/migrate.c
index 5fed0305d2ec..f99502bc113c 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -804,10 +804,7 @@ 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, detach_page_private(page));
 	get_page(newpage);
 
 	bh = head;
-- 
2.17.1




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