diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index f856d6ca3771..f3215028235c 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -6757,6 +6757,7 @@ static int btrfs_compare_trees(struct btrfs_root *left_root,
 	advance_left = advance_right = 0;
 
 	while (1) {
+		cond_resched();
 		if (advance_left && !left_end_reached) {
 			ret = tree_advance(left_path, &left_level,
 					left_root_level,