Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

[cascardo/linux.git] / include / linux / sched / prio.h

diff --git a/include/linux/sched/prio.h b/include/linux/sched/prio.h
index ac32258..d9cf5a5 100644 (file)
--- a/include/linux/sched/prio.h
+++ b/include/linux/sched/prio.h
@@ -41,4 +41,20 @@
 #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].
+ */
+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 */