if (!used_math())
                return 0;
        clear_used_math(); /* trigger finit */
-       if (tsk->thread_info->status & TS_USEDFPU) {
+       if (task_thread_info(tsk)->status & TS_USEDFPU) {
                err = save_i387_checking((struct i387_fxsave_struct __user *)buf);
                if (err) return err;
                stts();
 
 {
        if (irq > 256) { 
                char var;
-               printk("return %p stack %p ti %p\n", __builtin_return_address(0), &var, current->thread_info); 
+               printk("return %p stack %p ti %p\n", __builtin_return_address(0), &var, task_thread_info(current));
 
                BUG(); 
        }
 
        p->thread.rsp0 = (unsigned long) (childregs+1);
        p->thread.userrsp = me->thread.userrsp; 
 
-       set_ti_thread_flag(p->thread_info, TIF_FORK);
+       set_tsk_thread_flag(p, TIF_FORK);
 
        p->thread.fs = me->thread.fs;
        p->thread.gs = me->thread.gs;
 
        init_rsp = c_idle.idle->thread.rsp;
        per_cpu(init_tss,cpu).rsp0 = init_rsp;
        initial_code = start_secondary;
-       clear_ti_thread_flag(c_idle.idle->thread_info, TIF_FORK);
+       clear_tsk_thread_flag(c_idle.idle, TIF_FORK);
 
        printk(KERN_INFO "Booting processor %d/%d APIC 0x%x\n", cpu,
                cpus_weight(cpu_present_map),
 
        printk("CPU %d ", cpu);
        __show_regs(regs);
        printk("Process %s (pid: %d, threadinfo %p, task %p)\n",
-               cur->comm, cur->pid, cur->thread_info, cur);
+               cur->comm, cur->pid, task_thread_info(cur), cur);
 
        /*
         * When in-kernel, we also print out the stack and code at the
        if (!used_math())
                init_fpu(me);
        restore_fpu_checking(&me->thread.i387.fxsave);
-       me->thread_info->status |= TS_USEDFPU;
+       task_thread_info(me)->status |= TS_USEDFPU;
 }
 
 void __init trap_init(void)
 
  */
 
 #define unlazy_fpu(tsk) do { \
-       if ((tsk)->thread_info->status & TS_USEDFPU) \
+       if (task_thread_info(tsk)->status & TS_USEDFPU) \
                save_init_fpu(tsk); \
 } while (0)
 
 }
 
 #define clear_fpu(tsk) do { \
-       if ((tsk)->thread_info->status & TS_USEDFPU) {          \
+       if (task_thread_info(tsk)->status & TS_USEDFPU) {       \
                tolerant_fwait();                               \
-               (tsk)->thread_info->status &= ~TS_USEDFPU;      \
+               task_thread_info(tsk)->status &= ~TS_USEDFPU;   \
                stts();                                         \
        }                                                       \
 } while (0)
        preempt_enable();
 }
 
-static inline void save_init_fpu( struct task_struct *tsk )
+static inline void save_init_fpu(struct task_struct *tsk)
 {
        __fxsave_clear(tsk);
-       tsk->thread_info->status &= ~TS_USEDFPU;
+       task_thread_info(tsk)->status &= ~TS_USEDFPU;
        stts();
 }