--- block/deadline-iosched.c

+++ block/deadline-iosched.c

@@ -77,8 +77,10 @@ static void

deadline_add_rq_rb(struct deadline_data *dd, struct request *rq)

{

struct rb_root *root = deadline_rb_root(dd, rq);

+ struct request *__alias;

- elv_rb_add(root, rq);

+ while (unlikely(__alias = elv_rb_add(root, rq)))

+ deadline_move_request(dd, __alias);

}

static inline void