From 1538f4b6e3cc08c334f58b0025aa7de1d6c97e1a Mon Sep 17 00:00:00 2001
From: Chunwei Chen <tuxoko@gmail.com>
Date: Wed, 7 May 2014 10:57:19 -0700
Subject: [PATCH] Linux 3.15 compat: NICE_TO_PRIO and PRIO_TO_NICE

These macro's were exposed to make them available to other
parts of the kernel and modules.

References:
  torvalds/linux@6b6350f

Signed-off-by: Chunwei Chen <tuxoko@gmail.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #355
---
 include/sys/sysmacros.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/sys/sysmacros.h b/include/sys/sysmacros.h
index 1ac49b4f0c..e73c7fd1e8 100644
--- a/include/sys/sysmacros.h
+++ b/include/sys/sysmacros.h
@@ -95,8 +95,12 @@
 #define minclsyspri			(MAX_RT_PRIO)
 #define maxclsyspri			(MAX_PRIO-1)
 
+#ifndef NICE_TO_PRIO
 #define NICE_TO_PRIO(nice)		(MAX_RT_PRIO + (nice) + 20)
+#endif
+#ifndef PRIO_TO_NICE
 #define PRIO_TO_NICE(prio)		((prio) - MAX_RT_PRIO - 20)
+#endif
 
 /* Missing macros
  */