linux-kernel - [PATCH 1/6] mm/page_io: use a folio in __end_swap_bio

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Date:   Mon, 17 Jul 2023 21:25:57 +0800
From:   Peng Zhang <zhangpeng362@...wei.com>
To:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>
CC:     <willy@...radead.org>, <sidhartha.kumar@...cle.com>,
        <akpm@...ux-foundation.org>, <wangkefeng.wang@...wei.com>,
        <sunnanyong@...wei.com>, ZhangPeng <zhangpeng362@...wei.com>
Subject: [PATCH 1/6] mm/page_io: use a folio in __end_swap_bio_read()

From: ZhangPeng <zhangpeng362@...wei.com>

Saves three implicit call to compound_head().

Signed-off-by: ZhangPeng <zhangpeng362@...wei.com>
---
 mm/page_io.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/mm/page_io.c b/mm/page_io.c
index 684cd3c7b59b..ebf431e5f538 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -58,18 +58,18 @@ static void end_swap_bio_write(struct bio *bio)
 
 static void __end_swap_bio_read(struct bio *bio)
 {
-	struct page *page = bio_first_page_all(bio);
+	struct folio *folio = page_folio(bio_first_page_all(bio));
 
 	if (bio->bi_status) {
-		SetPageError(page);
-		ClearPageUptodate(page);
+		folio_set_error(folio);
+		folio_clear_uptodate(folio);
 		pr_alert_ratelimited("Read-error on swap-device (%u:%u:%llu)\n",
 				     MAJOR(bio_dev(bio)), MINOR(bio_dev(bio)),
 				     (unsigned long long)bio->bi_iter.bi_sector);
 	} else {
-		SetPageUptodate(page);
+		folio_mark_uptodate(folio);
 	}
-	unlock_page(page);
+	folio_unlock(folio);
 }
 
 static void end_swap_bio_read(struct bio *bio)
-- 
2.25.1