1 files changed, 6 insertions, 0 deletions
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index dfeb7174219e..707e644bab92 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1092,6 +1092,12 @@ struct btrfs_fs_info {
 	/* Updates are not protected by any lock */
 	struct btrfs_commit_stats commit_stats;
 
+	/*
+	 * Annotations for transaction events (structures are empty when
+	 * compiled without lockdep).
+	 */
+	struct lockdep_map btrfs_trans_num_writers_map;
+
 #ifdef CONFIG_BTRFS_FS_REF_VERIFY
 	spinlock_t ref_verify_lock;
 	struct rb_root block_tree;