unsigned long stack_top, struct task_struct *p,
struct pt_regs *regs);
extern void release_thread_tt(struct task_struct *task);
-extern void exit_thread_tt(void);
extern void initial_thread_cb_tt(void (*proc)(void *), void *arg);
extern void init_idle_tt(void);
extern void flush_tlb_kernel_range_tt(unsigned long start, unsigned long end);