sched/prio: Use DEFAULT_PRIO to define NICE_TO_PRIO() and PRIO_TO_NICE()
There is already a macro named DEFAULT_PRIO in prio.h, we can use it to define NICE_TO_PRIO and PRIO_TO_NICE rather than use hard coding of (MAX_RT_PRIO + 20). Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com> Signed-off-by: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/4e28ec36fb49e8906027cbbdd900ab26a149905e.1392103744.git.yangds.fnst@cn.fujitsu.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
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* to static priority [ MAX_RT_PRIO..MAX_PRIO-1 ],
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* and back.
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*/
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#define NICE_TO_PRIO(nice) (MAX_RT_PRIO + (nice) + 20)
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#define PRIO_TO_NICE(prio) ((prio) - MAX_RT_PRIO - 20)
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#define NICE_TO_PRIO(nice) ((nice) + DEFAULT_PRIO)
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#define PRIO_TO_NICE(prio) ((prio) - DEFAULT_PRIO)
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/*
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* 'User priority' is the nice value converted to something we
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