[PATCH 7/9] sys: Replace hardcoding of -20 and 19 with MIN_NICE and MAX_NICE.

[Dongsheng Yang]

Signed-off-by: Dongsheng Yang <yangds.fnst@xxxxxxxxxxxxxx>
cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
cc: Oleg Nesterov <oleg@xxxxxxxxxx>
cc: Robin Holt <holt@xxxxxxx>
cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
cc: Kees Cook <keescook@xxxxxxxxxxxx>
cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
cc: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
cc: Ingo Molnar <mingo@xxxxxxxxxx>
---
 kernel/sys.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/sys.c b/kernel/sys.c
index c0a58be..adaeab6 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -174,10 +174,10 @@ SYSCALL_DEFINE3(setpriority, int, which, int, who, int, niceval)
 
 	/* normalize: avoid signed division (rounding problems) */
 	error = -ESRCH;
-	if (niceval < -20)
-		niceval = -20;
-	if (niceval > 19)
-		niceval = 19;
+	if (niceval < MIN_NICE)
+		niceval = MIN_NICE;
+	if (niceval > MAX_NICE)
+		niceval = MAX_NICE;
 
 	rcu_read_lock();
 	read_lock(&tasklist_lock);
-- 
1.8.2.1

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