[Patch] sched: use TASK_NICE for task_struct

[AmÃrico Wang]

#define TASK_NICE(p)            PRIO_TO_NICE((p)->static_prio)

So it's better to use TASK_NICE here.

Signed-off-by: WANG Cong <wangcong@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>

---
diff --git a/kernel/sched.c b/kernel/sched.c
index c1d0ed3..a996bcc 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -5145,7 +5145,7 @@ SYSCALL_DEFINE1(nice, int, increment)
 	if (increment > 40)
 		increment = 40;
 
-	nice = PRIO_TO_NICE(current->static_prio) + increment;
+	nice = TASK_NICE(current) + increment;
 	if (nice < -20)
 		nice = -20;
 	if (nice > 19)

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