linux-kernel - [PATCH 2/6] mm/page_io: use a folio in sio_read

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Message-ID: <20230717132602.2202147-3-zhangpeng362@huawei.com>
Date:   Mon, 17 Jul 2023 21:25:58 +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 2/6] mm/page_io: use a folio in sio_read_complete()

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

Saves three implicit call to compound_head().

Signed-off-by: ZhangPeng <zhangpeng362@...wei.com>
---
 mm/page_io.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/mm/page_io.c b/mm/page_io.c
index ebf431e5f538..438d0c7c2194 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -406,19 +406,19 @@ static void sio_read_complete(struct kiocb *iocb, long ret)
 
 	if (ret == sio->len) {
 		for (p = 0; p < sio->pages; p++) {
-			struct page *page = sio->bvec[p].bv_page;
+			struct folio *folio = page_folio(sio->bvec[p].bv_page);
 
-			SetPageUptodate(page);
-			unlock_page(page);
+			folio_mark_uptodate(folio);
+			folio_unlock(folio);
 		}
 		count_vm_events(PSWPIN, sio->pages);
 	} else {
 		for (p = 0; p < sio->pages; p++) {
-			struct page *page = sio->bvec[p].bv_page;
+			struct folio *folio = page_folio(sio->bvec[p].bv_page);
 
-			SetPageError(page);
-			ClearPageUptodate(page);
-			unlock_page(page);
+			folio_set_error(folio);
+			folio_clear_uptodate(folio);
+			folio_unlock(folio);
 		}
 		pr_alert_ratelimited("Read-error on swap-device\n");
 	}
-- 
2.25.1