diff mbox series

[4/6] mm/page_io: use a folio in swap_writepage_bdev_async()

Message ID 20230717132602.2202147-5-zhangpeng362@huawei.com (mailing list archive)
State New
Headers show
Series Convert several functions in page_io.c to use a folio | expand

Commit Message

Peng Zhang July 17, 2023, 1:26 p.m. UTC 
From: ZhangPeng <zhangpeng362@huawei.com>

Saves one implicit call to compound_head().

Signed-off-by: ZhangPeng <zhangpeng362@huawei.com>
---
 mm/page_io.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

Comments

Matthew Wilcox July 17, 2023, 2:01 p.m. UTC | #1 
On Mon, Jul 17, 2023 at 09:26:00PM +0800, Peng Zhang wrote:
> From: ZhangPeng <zhangpeng362@huawei.com>
> 
> Saves one implicit call to compound_head().
> 
> Signed-off-by: ZhangPeng <zhangpeng362@huawei.com>

Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
diff mbox series

Patch

diff --git a/mm/page_io.c b/mm/page_io.c
index f24f814b8dca..84cc9e652451 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -355,6 +355,7 @@  static void swap_writepage_bdev_async(struct page *page,
 		struct writeback_control *wbc, struct swap_info_struct *sis)
 {
 	struct bio *bio;
+	struct folio *folio = page_folio(page);
 
 	bio = bio_alloc(sis->bdev, 1,
 			REQ_OP_WRITE | REQ_SWAP | wbc_to_write_flags(wbc),
@@ -365,8 +366,8 @@  static void swap_writepage_bdev_async(struct page *page,
 
 	bio_associate_blkg_from_page(bio, page);
 	count_swpout_vm_event(page);
-	set_page_writeback(page);
-	unlock_page(page);
+	folio_start_writeback(folio);
+	folio_unlock(folio);
 	submit_bio(bio);
 }