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

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

[Su Yue]

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 <suy.fnst@cn.fujitsu.com>
---
 fs/btrfs/dir-item.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/dir-item.c b/fs/btrfs/dir-item.c
index 60a750678a82..c24d615e3d7f 100644
--- 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;
 	}
 
-- 
2.13.0

Re: [PATCH] btrfs: tree-log.c: Wrong printk information about namelen

[David Sterba]

On Wed, May 24, 2017 at 09:31:32AM +0800, Su Yue wrote:
> In verify_dir_item, it wants to printk name_len of dir_item but
> printk data_len acutally.

Good catch, thanks.

Reviewed-by: David Sterba <dsterba@suse.com>