From:   Ye Bin <yebin@huaweicloud.com>
To:     tytso@mit.edu, adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org
Cc:     linux-kernel@vger.kernel.org, jack@suse.cz,
        Ye Bin <yebin10@huawei.com>
Subject: [PATCH v3 2/2] ext4: make sure fs error flag setted before clear journal error
Date:   Tue, 14 Feb 2023 10:29:05 +0800
Message-Id: <20230214022905.765088-3-yebin@huaweicloud.com>
In-Reply-To: <20230214022905.765088-1-yebin@huaweicloud.com>
References: <20230214022905.765088-1-yebin@huaweicloud.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: Ye Bin <yebin10@huawei.com>

Now, jounral error number maybe cleared even though ext4_commit_super()
failed. This may lead to error flag miss, then fsck will miss to check
file system deeply.

Signed-off-by: Ye Bin <yebin10@huawei.com>
---
 fs/ext4/super.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index b94754ba8556..619ef6d021d4 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -6163,11 +6163,13 @@ static int ext4_clear_journal_err(struct super_block *sb,
 		errstr = ext4_decode_error(sb, j_errno, nbuf);
 		ext4_warning(sb, "Filesystem error recorded "
 			     "from previous mount: %s", errstr);
-		ext4_warning(sb, "Marking fs in need of filesystem check.");
 
 		EXT4_SB(sb)->s_mount_state |= EXT4_ERROR_FS;
 		es->s_state |= cpu_to_le16(EXT4_ERROR_FS);
-		ext4_commit_super(sb);
+		j_errno = ext4_commit_super(sb);
+		if (j_errno)
+			return j_errno;
+		ext4_warning(sb, "Marked fs in need of filesystem check.");
 
 		jbd2_journal_clear_err(journal);
 		jbd2_journal_update_sb_errno(journal);
-- 
2.31.1