linux-ext4 - [PATCH v2 26/29] ext4: Use a folio iterator in __read_end

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Date:   Fri, 24 Mar 2023 18:01:26 +0000
From:   "Matthew Wilcox (Oracle)" <willy@...radead.org>
To:     tytso@....edu, adilger.kernel@...ger.ca
Cc:     "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: [PATCH v2 26/29] ext4: Use a folio iterator in __read_end_io()

Iterate once per folio, not once per page.

Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>
---
 fs/ext4/readpage.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/fs/ext4/readpage.c b/fs/ext4/readpage.c
index fed4ddb652df..6f46823fba61 100644
--- a/fs/ext4/readpage.c
+++ b/fs/ext4/readpage.c
@@ -68,18 +68,16 @@ struct bio_post_read_ctx {
 
 static void __read_end_io(struct bio *bio)
 {
-	struct page *page;
-	struct bio_vec *bv;
-	struct bvec_iter_all iter_all;
+	struct folio_iter fi;
 
-	bio_for_each_segment_all(bv, bio, iter_all) {
-		page = bv->bv_page;
+	bio_for_each_folio_all(fi, bio) {
+		struct folio *folio = fi.folio;
 
 		if (bio->bi_status)
-			ClearPageUptodate(page);
+			folio_clear_uptodate(folio);
 		else
-			SetPageUptodate(page);
-		unlock_page(page);
+			folio_mark_uptodate(folio);
+		folio_unlock(folio);
 	}
 	if (bio->bi_private)
 		mempool_free(bio->bi_private, bio_post_read_ctx_pool);
-- 
2.39.2