1 files changed, 7 insertions, 3 deletions

diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c
index 8c04afb90b1b..fb6f11709ae6 100644
--- a/fs/ext4/move_extent.c
+++ b/fs/ext4/move_extent.c
@@ -571,12 +571,16 @@ ext4_move_extents(struct file *o_filp, struct file *d_filp, __u64 orig_blk,
                         orig_inode->i_ino, donor_inode->i_ino);
                 return -EINVAL;
         }
-        /* TODO: This is non obvious task to swap blocks for inodes with full
-           jornaling enabled */
+
+        /* TODO: it's not obvious how to swap blocks for inodes with full
+           journaling enabled */
         if (ext4_should_journal_data(orig_inode) ||
             ext4_should_journal_data(donor_inode)) {
-                return -EINVAL;
+                ext4_msg(orig_inode->i_sb, KERN_ERR,
+                         "Online defrag not supported with data journaling");
+                return -EOPNOTSUPP;
         }
+
         /* Protect orig and donor inodes against a truncate */
         lock_two_nondirectories(orig_inode, donor_inode);