linux-kernel - [PATCH] f2fs: do not count ENOENT for error case

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Message-Id: <20220618224606.1554706-1-jaegeuk@kernel.org>
Date:   Sat, 18 Jun 2022 15:46:06 -0700
From:   Jaegeuk Kim <jaegeuk@...nel.org>
To:     linux-kernel@...r.kernel.org,
        linux-f2fs-devel@...ts.sourceforge.net
Cc:     Jaegeuk Kim <jaegeuk@...nel.org>, stable@...r.kernel.org
Subject: [PATCH] f2fs: do not count ENOENT for error case

Otherwise, we can get a wrong cp_error mark.

Cc: <stable@...r.kernel.org>
Fixes: a7b8618aa2f0 ("f2fs: avoid infinite loop to flush node pages")
Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
---
 fs/f2fs/node.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 4181d03a7ef7..095a634436e3 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1450,7 +1450,9 @@ static struct page *__get_node_page(struct f2fs_sb_info *sbi, pgoff_t nid,
 out_err:
 	ClearPageUptodate(page);
 out_put_err:
-	f2fs_handle_page_eio(sbi, page->index, NODE);
+	/* ENOENT comes from read_node_page which is not an error. */
+	if (err != -ENOENT)
+		f2fs_handle_page_eio(sbi, page->index, NODE);
 	f2fs_put_page(page, 1);
 	return ERR_PTR(err);
 }
-- 
2.36.1.476.g0c4daa206d-goog