btrfs: tree-log.c: Wrong printk information about namelen

Su Yue · masoncl · commit 286b92f43c0d · 2017-06-09T12:48:07.000-07:00
In verify_dir_item, it wants to printk name_len of dir_item but
printk data_len acutally.

Fix it by calling btrfs_dir_name_len instead of btrfs_dir_data_len.

Signed-off-by: Su Yue &lt;suy.fnst@cn.fujitsu.com&gt;
Reviewed-by: David Sterba &lt;dsterba@suse.com&gt;
Signed-off-by: David Sterba &lt;dsterba@suse.com&gt;
Signed-off-by: Chris Mason &lt;clm@fb.com&gt;
diff --git a/fs/btrfs/dir-item.c b/fs/btrfs/dir-item.c
@@ -468,7 +468,7 @@ int verify_dir_item(struct btrfs_fs_info *fs_info,
 
 	if (btrfs_dir_name_len(leaf, dir_item) > namelen) {
 		btrfs_crit(fs_info, "invalid dir item name len: %u",
-		       (unsigned)btrfs_dir_data_len(leaf, dir_item));
+		       (unsigned)btrfs_dir_name_len(leaf, dir_item));
 		return 1;
 	}
 

Original file line number	Diff line number	Diff line change
`@@ -468,7 +468,7 @@ int verify_dir_item(struct btrfs_fs_info *fs_info,`
`468`	`468`
`469`	`469`	`if (btrfs_dir_name_len(leaf, dir_item) > namelen) {`
`470`	`470`	`btrfs_crit(fs_info, "invalid dir item name len: %u",`
`471`		`- (unsigned)btrfs_dir_data_len(leaf, dir_item));`
	`471`	`+ (unsigned)btrfs_dir_name_len(leaf, dir_item));`
`472`	`472`	`return 1;`
`473`	`473`	`}`
`474`	`474`