[PATCH v3 2/3] ext4: record error when detect abnormal 'i_reserved_data_blocks'

From: Ye Bin
Date: Fri Dec 02 2022 - 21:38:56 EST


From: Ye Bin <yebin10@xxxxxxxxxx>

If 'i_reserved_data_blocks' is not cleared which mean something wrong with
code, free space accounting is likely wrong, according to Jan Kara's advice
use ext4_error() to record this abnormal let fsck to repair and also we can
capture this issue.

Signed-off-by: Ye Bin <yebin10@xxxxxxxxxx>
---
fs/ext4/super.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 840e0a614959..41413338c05b 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1387,10 +1387,10 @@ static void ext4_destroy_inode(struct inode *inode)
}

if (EXT4_I(inode)->i_reserved_data_blocks)
- ext4_msg(inode->i_sb, KERN_ERR,
- "Inode %lu (%p): i_reserved_data_blocks (%u) not cleared!",
- inode->i_ino, EXT4_I(inode),
- EXT4_I(inode)->i_reserved_data_blocks);
+ ext4_error(inode->i_sb,
+ "Inode %lu (%p): i_reserved_data_blocks (%u) not cleared!",
+ inode->i_ino, EXT4_I(inode),
+ EXT4_I(inode)->i_reserved_data_blocks);
}

static void init_once(void *foo)
--
2.31.1