(*(unsigned long *)(PT_REG(pc) + (unsigned long) ((tsk)->thread_info)))
#define KSTK_ESP(tsk) \
- ((tsk) == current ? rdusp() : (tsk)->thread_info->pcb.usp)
+ ((tsk) == current ? rdusp() : task_thread_info(tsk)->pcb.usp)
#define cpu_relax() barrier()