[PATCH v2 6/6] ext4: make sure fs error flag setted before clear journal error

From: Ye Bin
Date: Thu Feb 09 2023 - 21:57:24 EST


From: Ye Bin <yebin10@xxxxxxxxxx>

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@xxxxxxxxxx>
---
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 d86ee5af2db9..b458af1cbf5c 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -6143,11 +6143,13 @@ 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