linux-ext4 - [PATCH v2 2/3] ext4: record error when detect abnormal 'i_reserved_data

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Date:   Mon, 21 Nov 2022 20:14:33 +0800
From:   Ye Bin <yebin@...weicloud.com>
To:     tytso@....edu, adilger.kernel@...ger.ca, linux-ext4@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, jack@...e.cz,
        Ye Bin <yebin10@...wei.com>
Subject: [PATCH v2 2/3] ext4: record error when detect abnormal 'i_reserved_data_blocks'

From: Ye Bin <yebin10@...wei.com>

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@...wei.com>
---
 fs/ext4/super.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 0690e2e0b74d..3d30007502a4 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1387,10 +1387,9 @@ 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