title: Disable Interrupts Raspberry
body: <p>I want to disable all the local interrupts on my raspberry pi.
  There exist the function: <code>local_irq_disable();</code>
  But my g++ compiler cannot find it. I tried the common header files like <code>system.h</code> and <code>irq.h</code>.
  But it didn't work.
  Which headerfile do I have to use to build the irq_disable function on a raspi with the os raspian ?</p>