sched: clean up the rt priority macros

clean up the rt priority macros, pointed out by Andrew Morton.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 36 insertions, 25 deletions

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 3e7f1890e55d..4dcc61cca00a 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -525,31 +525,6 @@ struct signal_struct {
 #define SIGNAL_STOP_CONTINUED   0x00000004 /* SIGCONT since WCONTINUED reap */
 #define SIGNAL_GROUP_EXIT       0x00000008 /* group exit in progress */
 
-
-/*
- * Priority of a process goes from 0..MAX_PRIO-1, valid RT
- * priority is 0..MAX_RT_PRIO-1, and SCHED_NORMAL/SCHED_BATCH
- * tasks are in the range MAX_RT_PRIO..MAX_PRIO-1. Priority
- * values are inverted: lower p->prio value means higher priority.
- *
- * The MAX_USER_RT_PRIO value allows the actual maximum
- * RT priority to be separate from the value exported to
- * user-space.  This allows kernel threads to set their
- * priority to a value higher than any user task. Note:
- * MAX_RT_PRIO must not be smaller than MAX_USER_RT_PRIO.
- */
-
-#define MAX_USER_RT_PRIO        100
-#define MAX_RT_PRIO             MAX_USER_RT_PRIO
-
-#define MAX_PRIO                (MAX_RT_PRIO + 40)
-
-#define rt_prio(prio)           unlikely((prio) < MAX_RT_PRIO)
-#define rt_task(p)              rt_prio((p)->prio)
-#define batch_task(p)           (unlikely((p)->policy == SCHED_BATCH))
-#define is_rt_policy(p)         ((p) != SCHED_NORMAL && (p) != SCHED_BATCH)
-#define has_rt_policy(p)        unlikely(is_rt_policy((p)->policy))
-
 /*
  * Some day this will be a full-fledged user tracking system..
  */
@@ -1164,6 +1139,42 @@ struct task_struct {
 #endif
 };
 
+/*
+ * Priority of a process goes from 0..MAX_PRIO-1, valid RT
+ * priority is 0..MAX_RT_PRIO-1, and SCHED_NORMAL/SCHED_BATCH
+ * tasks are in the range MAX_RT_PRIO..MAX_PRIO-1. Priority
+ * values are inverted: lower p->prio value means higher priority.
+ *
+ * The MAX_USER_RT_PRIO value allows the actual maximum
+ * RT priority to be separate from the value exported to
+ * user-space.  This allows kernel threads to set their
+ * priority to a value higher than any user task. Note:
+ * MAX_RT_PRIO must not be smaller than MAX_USER_RT_PRIO.
+ */
+
+#define MAX_USER_RT_PRIO        100
+#define MAX_RT_PRIO             MAX_USER_RT_PRIO
+
+#define MAX_PRIO                (MAX_RT_PRIO + 40)
+#define DEFAULT_PRIO            (MAX_RT_PRIO + 20)
+
+static inline int rt_prio(int prio)
+{
+        if (unlikely(prio < MAX_RT_PRIO))
+                return 1;
+        return 0;
+}
+
+static inline int rt_task(struct task_struct *p)
+{
+        return rt_prio(p->prio);
+}
+
+static inline int batch_task(struct task_struct *p)
+{
+        return p->policy == SCHED_BATCH;
+}
+
 static inline pid_t process_group(struct task_struct *tsk)
 {
         return tsk->signal->pgrp;