sched: Replace hardcoding of -20 and 19 with MIN_NICE and MAX_NICE
Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/bd80780f19b4f9b4a765acc353c8dbc130274dd6.1392103744.git.yangds.fnst@cn.fujitsu.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index cc4965e..a8a73b8 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2993,7 +2993,7 @@
unsigned long flags;
struct rq *rq;
- if (task_nice(p) == nice || nice < -20 || nice > 19)
+ if (task_nice(p) == nice || nice < MIN_NICE || nice > MAX_NICE)
return;
/*
* We have to be careful, if called from sys_setpriority(),
@@ -3072,10 +3072,10 @@
increment = 40;
nice = task_nice(current) + increment;
- if (nice < -20)
- nice = -20;
- if (nice > 19)
- nice = 19;
+ if (nice < MIN_NICE)
+ nice = MIN_NICE;
+ if (nice > MAX_NICE)
+ nice = MAX_NICE;
if (increment < 0 && !can_nice(current, nice))
return -EPERM;
@@ -3623,7 +3623,7 @@
* XXX: do we want to be lenient like existing syscalls; or do we want
* to be strict and return an error on out-of-bounds values?
*/
- attr->sched_nice = clamp(attr->sched_nice, -20, 19);
+ attr->sched_nice = clamp(attr->sched_nice, MIN_NICE, MAX_NICE);
out:
return ret;