1 files changed, 4 insertions, 0 deletions

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 6647b90ef745..ad72e2192015 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -861,6 +861,10 @@ int close_ctree(struct btrfs_root *root)
         write_ctree_super(NULL, root);
         mutex_unlock(&fs_info->fs_mutex);
 
+        if (fs_info->delalloc_bytes) {
+                printk("btrfs: at unmount delalloc count %Lu\n",
+                       fs_info->delalloc_bytes);
+        }
         if (fs_info->extent_root->node)
                 free_extent_buffer(fs_info->extent_root->node);