void start_thread(struct pt_regs *regs, unsigned long fdptr, unsigned long sp);
void release_thread(struct task_struct *);
-/* Prepare to copy thread state - unlazy all lazy status */
-extern void prepare_to_copy(struct task_struct *tsk);
-
/* Create a new kernel thread. */
extern long kernel_thread(int (*fn)(void *), void *arg, unsigned long flags);