[tip:sched/core] workqueue: Replace hardcoding of -20 and 19 with MIN_NICE and MAX_NICE.

[tip-bot for Dongsheng Yang]

Commit-ID:  dbebf7f826e1b3935f8bcd5d9681bf97708a7ddb
Gitweb:     http://git.kernel.org/tip/dbebf7f826e1b3935f8bcd5d9681bf97708a7ddb
Author:     Dongsheng Yang <yangds.fnst@xxxxxxxxxxxxxx>
AuthorDate: Tue, 11 Feb 2014 15:34:52 +0800
Committer:  Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Fri, 21 Feb 2014 21:43:21 +0100

workqueue: Replace hardcoding of -20 and 19 with MIN_NICE and MAX_NICE.

Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Acked-by: Tejun Heo <tj@xxxxxxxxxx>
Signed-off-by: Dongsheng Yang <yangds.fnst@xxxxxxxxxxxxxx>
Signed-off-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/6d85138180c00ce86975addab6e34b24b84f00a5.1392103744.git.yangds.fnst@xxxxxxxxxxxxxx
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
 kernel/workqueue.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 193e977..3fa5b8f 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -3225,7 +3225,7 @@ static ssize_t wq_nice_store(struct device *dev, struct device_attribute *attr,
 		return -ENOMEM;
 
 	if (sscanf(buf, "%d", &attrs->nice) == 1 &&
-	    attrs->nice >= -20 && attrs->nice <= 19)
+	    attrs->nice >= MIN_NICE && attrs->nice <= MAX_NICE)
 		ret = apply_workqueue_attrs(wq, attrs);
 	else
 		ret = -EINVAL;
--
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