From: Ye Bin <yebin10@xxxxxxxxxx>
Now, 'es->s_state' maybe covered by recover journal. And journal errno
maybe not recorded in journal sb as IO error. ext4_update_super() only
update error information when 'sbi->s_add_error_count' large than zero.
Then 'EXT4_ERROR_FS' flag maybe lost.
To solve above issue just recover 'es->s_state' error flag after journal
replay like error info.
Signed-off-by: Ye Bin <yebin10@xxxxxxxxxx>
---
fs/ext4/super.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 88f7b8a88c76..dfa31eea1346 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -5920,6 +5920,7 @@ static int ext4_load_journal(struct super_block *sb,
err = jbd2_journal_wipe(journal, !really_read_only);
if (!err) {
char *save = kmalloc(EXT4_S_ERR_LEN, GFP_KERNEL);
+
if (save)
memcpy(save, ((char *) es) +
EXT4_S_ERR_START, EXT4_S_ERR_LEN);
@@ -5928,6 +5929,14 @@ static int ext4_load_journal(struct super_block *sb,
memcpy(((char *) es) + EXT4_S_ERR_START,
save, EXT4_S_ERR_LEN);
kfree(save);
+ es->s_state |= cpu_to_le16(EXT4_SB(sb)->s_mount_state &
+ EXT4_ERROR_FS);
+ /* Write out restored error information to the superblock */
+ if (!bdev_read_only(sb->s_bdev)) {
+ int err2;
+ err2 = ext4_commit_super(sb);
+ err = err ? : err2;
+ }
}
if (err) {
--
2.31.1
