linux-kernel - [PATCH 3/6] ubifs: Add comments and debug info for ubifs

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Message-ID: <20221011034732.45605-4-chengzhihao1@huawei.com>
Date:   Tue, 11 Oct 2022 11:47:29 +0800
From:   Zhihao Cheng <chengzhihao1@...wei.com>
To:     <richard@....at>, <s.hauer@...gutronix.de>,
        <miquel.raynal@...tlin.com>
CC:     <linux-mtd@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        <chengzhihao1@...wei.com>, <yukuai3@...wei.com>
Subject: [PATCH 3/6] ubifs: Add comments and debug info for ubifs_xrename()

Just like other operations (eg. ubifs_create, do_rename), add comments
and debug information for ubifs_xrename().

Signed-off-by: Zhihao Cheng <chengzhihao1@...wei.com>
---
 fs/ubifs/dir.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index eeda471f05ee..53c5442f48b7 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -1565,6 +1565,15 @@ static int ubifs_xrename(struct inode *old_dir, struct dentry *old_dentry,
 
 	ubifs_assert(c, fst_inode && snd_inode);
 
+	/*
+	 * Budget request settings: changing two direntries, changing the two
+	 * parent directory inodes.
+	 */
+
+	dbg_gen("dent '%pd' ino %lu in dir ino %lu exchange dent '%pd' ino %lu in dir ino %lu",
+		old_dentry, fst_inode->i_ino, old_dir->i_ino,
+		new_dentry, snd_inode->i_ino, new_dir->i_ino);
+
 	err = fscrypt_setup_filename(old_dir, &old_dentry->d_name, 0, &fst_nm);
 	if (err)
 		return err;
-- 
2.31.1