[PATCH 01/15] sched/prio: Add a macro named NICE_TO_RLIMIT in prio.h.

[Dongsheng Yang]

This patch add a macro named NICE_TO_RLIMIT in prio.h to
convert nice value [19,-20] to rlimit style value [1,40].

Signed-off-by: Dongsheng Yang <yangds.fnst@xxxxxxxxxxxxxx>
---
 include/linux/sched/prio.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/sched/prio.h b/include/linux/sched/prio.h
index ac32258..8e78c47 100644
--- a/include/linux/sched/prio.h
+++ b/include/linux/sched/prio.h
@@ -41,4 +41,9 @@
 #define TASK_USER_PRIO(p)	USER_PRIO((p)->static_prio)
 #define MAX_USER_PRIO		(USER_PRIO(MAX_PRIO))
 
+/*
+ * Convert nice value [19,-20] to rlimit style value [1,40].
+ */
+#define NICE_TO_RLIMIT(nice)	(MAX_NICE - nice + 1)
+
 #endif /* _SCHED_PRIO_H */
-- 
1.8.2.1

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