linux-ext4 - [PATCH 28/31] ext4: Use a folio iterator in __read_end

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20230126202415.1682629-29-willy@infradead.org>
Date:   Thu, 26 Jan 2023 20:24:12 +0000
From:   "Matthew Wilcox (Oracle)" <willy@...radead.org>
To:     "Theodore Tso" <tytso@....edu>,
        Andreas Dilger <adilger.kernel@...ger.ca>
Cc:     "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        linux-ext4@...r.kernel.org, linux-fsdevel@...r.kernel.org
Subject: [PATCH 28/31] 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 8092d2ace75e..442f6c507016 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);
-- 
2.35.1