title: How do I include Linux header files like linux/getcpu.h?
body: <p>I'm using <code>Linux 3.5.0-17-generic #28-Ubuntu SMP Tue Oct 9 19:31:23 UTC 2012 x86_64 GNU/Linux</code>, and I need to <code>#include&lt;linux/getcpu.h&gt;</code>. The compiler complains that it cannot find the file. Where are the header files for linux?</p>