diff --git a/fs/btrfs/block-group.c b/fs/btrfs/block-group.c
index a726b532b527..08017b180a10 100644
--- a/fs/btrfs/block-group.c
+++ b/fs/btrfs/block-group.c
@@ -1528,13 +1528,14 @@ void btrfs_mark_bg_unused(struct btrfs_block_group *bg)
 {
 	struct btrfs_fs_info *fs_info = bg->fs_info;
 
-	trace_btrfs_add_unused_block_group(bg);
 	spin_lock(&fs_info->unused_bgs_lock);
 	if (list_empty(&bg->bg_list)) {
 		btrfs_get_block_group(bg);
+		trace_btrfs_add_unused_block_group(bg);
 		list_add_tail(&bg->bg_list, &fs_info->unused_bgs);
-	} else {
+	} else if (!test_bit(BLOCK_GROUP_FLAG_NEW, &bg->runtime_flags)) {
 		/* Pull out the block group from the reclaim_bgs list. */
+		trace_btrfs_add_unused_block_group(bg);
 		list_move_tail(&bg->bg_list, &fs_info->unused_bgs);
 	}
 	spin_unlock(&fs_info->unused_bgs_lock);
@@ -2496,6 +2497,7 @@ void btrfs_create_pending_block_groups(struct btrfs_trans_handle *trans)
 next:
 		btrfs_delayed_refs_rsv_release(fs_info, 1);
 		list_del_init(&block_group->bg_list);
+		clear_bit(BLOCK_GROUP_FLAG_NEW, &block_group->runtime_flags);
 	}
 	btrfs_trans_release_chunk_metadata(trans);
 }
@@ -2535,6 +2537,13 @@ struct btrfs_block_group *btrfs_make_block_group(struct btrfs_trans_handle *tran
 	if (!cache)
 		return ERR_PTR(-ENOMEM);
 
+	/*
+	 * Mark it as new before adding it to the rbtree of block groups or any
+	 * list, so that no other task finds it and calls btrfs_mark_bg_unused()
+	 * before the new flag is set.
+	 */
+	set_bit(BLOCK_GROUP_FLAG_NEW, &cache->runtime_flags);
+
 	cache->length = size;
 	set_free_space_tree_thresholds(cache);
 	cache->used = bytes_used;
diff --git a/fs/btrfs/block-group.h b/fs/btrfs/block-group.h
index fb4f4901350b..47a2dcbfee25 100644
--- a/fs/btrfs/block-group.h
+++ b/fs/btrfs/block-group.h
@@ -59,6 +59,11 @@ enum btrfs_block_group_flags {
 	BLOCK_GROUP_FLAG_NEEDS_FREE_SPACE,
 	/* Indicate that the block group is placed on a sequential zone */
 	BLOCK_GROUP_FLAG_SEQUENTIAL_ZONE,
+	/*
+	 * Indicate that block group is in the list of new block groups of a
+	 * transaction.
+	 */
+	BLOCK_GROUP_FLAG_NEW,
 };
 
 enum btrfs_caching_type {