Hi Steven, On 02/10/2014 10:09 PM, Steven Rostedt wrote:
That's why you have: +++ b/include/linux/sched/prio.h @@ -0,0 +1,23 @@ +#ifndef _SCHED_PRIO_H +#define _SCHED_PRIO_H The first time a header gets included, it checks if _SCHED_PRIO_H is defined, if not, it defines it and continues. Otherwise it skips the content of the file. This is so standard practice that CPP (C Pre-Processor) optimizes this by checking if this exists and caches it. It wont even open the file the second time it sees it included.
Wow, yes. Thank you for your kind explanation. :)
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