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| author | Dongsheng Yang <yangds.fnst@cn.fujitsu.com> | 2014-02-11 15:34:50 +0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-02-22 18:15:54 +0100 |
| commit | 75e45d512f257beedae0d8a67d053cde5537bd4c (patch) | |
| tree | f2171633db9ee6b3227aea69cede99041d1c69dc /kernel/sched | |
| parent | d277d868dab6537a85f4757e39648b1d6afc60d5 (diff) | |
| download | linux-75e45d512f257beedae0d8a67d053cde5537bd4c.tar.bz2 | |
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>
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/auto_group.c | 2 | ||||
| -rw-r--r-- | 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 4a073539c58e..e73efba98301 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 cc4965e969b1..a8a73b8897bf 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -2993,7 +2993,7 @@ 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(), @@ -3072,10 +3072,10 @@ 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; @@ -3623,7 +3623,7 @@ 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; |