linux-kernel - [PATCH 13/17] sched/prio: Add an inline function named rlimit_to

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Message-Id: <b686cdc4dfa14914ccaf247de51ccce59dc00151.1394532288.git.yangds.fnst@cn.fujitsu.com>
Date:	Tue, 11 Mar 2014 18:09:21 +0800
From:	Dongsheng Yang <yangds.fnst@...fujitsu.com>
To:	linux-kernel@...r.kernel.org
Cc:	peterz@...radead.org, joe@...ches.com, mingo@...nel.org,
	tglx@...utronix.de, heiko.carstens@...ibm.com,
	Dongsheng Yang <yangds.fnst@...fujitsu.com>
Subject: [PATCH 13/17] sched/prio: Add an inline function named rlimit_to_nice in prio.h.

This patch add an inline function named rlimit_to_nice to convert
rlimit style value in [1, 40] to nice value in [-20, 19].

Signed-off-by: Dongsheng Yang <yangds.fnst@...fujitsu.com>
---
 include/linux/sched/prio.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/linux/sched/prio.h b/include/linux/sched/prio.h
index 29756f8..d9cf5a5 100644
--- a/include/linux/sched/prio.h
+++ b/include/linux/sched/prio.h
@@ -49,4 +49,12 @@ static inline long nice_to_rlimit(long nice)
 	return (MAX_NICE - nice + 1);
 }
 
+/*
+ * Convert rlimit style value [1,40] to nice value [-20, 19].
+ */
+static inline long rlimit_to_nice(long prio)
+{
+	return (MAX_NICE - prio + 1);
+}
+
 #endif /* _SCHED_PRIO_H */
-- 
1.8.2.1

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