Can I use yield in this way

[夏亮]

Hello,

       I'd like to ask a question about the use of a kernel function,  
yield(); I am working on Intel Core Duo, running Linux 2.6.21 I want  
to let current process be off the cpu when the temperature of cpu is  
too high. I add a function called thermal_balance in the timer  
interrupt. My program is as following,

scheduler_tick()
{
      static int count = 0;
      count++;
      if(count % 100 == 0)
          thermal_balance();
}

static int thermal_balance(void)
{
      int cpu = smp_processor_id();
      struct task_struct* task;
      Get CPU temperature.

      if (temperature is too high){
              task = cpu_rq(cpu)->curr;
              yield();
              Move task to other cpu.
      }
}

      Can yield() be used as above. After I compile the kernel and  
run again. Kernel is not working just as it meets deadlock. And if I  
comment yield(), it runs ok. Could anyone help me?Thanks!

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