From 3ee237dddcd885d4e525791299d62de33b2ca117 Mon Sep 17 00:00:00 2001
From: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Date: Tue, 11 Feb 2014 15:34:46 +0800
Subject: [PATCH] sched/prio: Add 3 macros of MAX_NICE, MIN_NICE and NICE_WIDTH
 in prio.h

Currently there is lots of hard coding to 19 and -20, to represent
maximum and minimum of nice values.

This patch add three macros in prio.h for maximum, minimum and width
of nice value, and uses it to remove hardcoded values in prio.h.

Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/3994e89327b2b15f992277cdf9f409c516f87d1b.1392103744.git.yangds.fnst@cn.fujitsu.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[ Collapsed two small patches. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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