1 files changed, 3 insertions, 0 deletions

diff --git a/fs/btrfs/async-thread.h b/fs/btrfs/async-thread.h
index a562ad8d83aa..fc089b95ec14 100644
--- a/fs/btrfs/async-thread.h
+++ b/fs/btrfs/async-thread.h
@@ -99,6 +99,9 @@ struct btrfs_workers {
         /* lock for finding the next worker thread to queue on */
         spinlock_t lock;
 
+        /* lock for the ordered lists */
+        spinlock_t order_lock;
+
         /* extra name for this worker, used for current->name */
         char *name;
 };