--- include/linux/ioprio.h

+++ include/linux/ioprio.h

@@ -64,6 +64,8 @@ static inline int task_ioprio_class(stru

static inline int task_nice_ioprio(struct task_struct *task)

{

+ if (iso_task(task))

+ return 0;

return (task_nice(task) + 20) / 5;

}