Signed-off-by: Dongsheng Yang <yangds.f...@cn.fujitsu.com>
cc: Ingo Molnar <mi...@redhat.com>
cc: Peter Zijlstra <pet...@infradead.org>
---
kernel/sched/auto_group.c | 2 +-
kernel/sched/core.c | 12 ++++++------
2 files changed, 7 insertions(+), 7 deletions(-)
diff --git a/kernel/sched/auto_group.c b/kernel/sched/auto_group.c
index 4a07353..e73efba 100644
--- a/kernel/sched/auto_group.c
+++ b/kernel/sched/auto_group.c
@@ -203,7 +203,7 @@ int proc_sched_autogroup_set_nice(struct task_struct *p,
int nice)
struct autogroup *ag;
int err;
- if (nice < -20 || nice > 19)
+ if (nice < MIN_NICE || nice > MAX_NICE)
return -EINVAL;
err = security_task_setnice(current, nice);
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 104c816..46cf585 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -3000,7 +3000,7 @@ void set_user_nice(struct task_struct *p, long nice)
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(),
@@ -3079,10 +3079,10 @@ SYSCALL_DEFINE1(nice, int, increment)
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;
@@ -3605,7 +3605,7 @@ static int sched_copy_attr(struct sched_attr __user
*uattr,
* 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;
--
1.8.2.1
--
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