Commit 2675251d authored by ZhangPeng's avatar ZhangPeng Committed by Andrew Morton
Browse files

mm/page_io: use a folio in swap_writepage_bdev_async() 

Saves one implicit call to compound_head().

Link: https://lkml.kernel.org/r/20230721034451.16412-9-zhangpeng362@huawei.com


Signed-off-by: default avatarZhangPeng <zhangpeng362@huawei.com>
Reviewed-by: default avatarMatthew Wilcox (Oracle) <willy@infradead.org>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Nanyong Sun <sunnanyong@huawei.com>
Cc: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent f54fcaab

mm/page_io.c

+3 −2
Original line number Diff line number Diff line
@@ -352,6 +352,7 @@ 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),
@@ -362,8 +363,8 @@ 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);

}