sched/fair: Make some variables static

The variables are local to the source and do not
need to be in global scope, so make them static.
Signed-off-by: Muchun Song <smuchun@gmail.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20181110075202.61172-1-smuchun@gmail.comSigned-off-by: Ingo Molnar <mingo@kernel.org>

kernel/sched/fair.c

@@ -38,7 +38,7 @@
  * (default: 6ms * (1 + ilog(ncpus)), units: nanoseconds)
  */
 unsigned int sysctl_sched_latency			= 6000000ULL;
-unsigned int normalized_sysctl_sched_latency		= 6000000ULL;
+static unsigned int normalized_sysctl_sched_latency	= 6000000ULL;
 
 /*
  * The initial- and re-scaling of tunables is configurable
@@ -59,7 +59,7 @@ enum sched_tunable_scaling sysctl_sched_tunable_scaling = SCHED_TUNABLESCALING_L
  * (default: 0.75 msec * (1 + ilog(ncpus)), units: nanoseconds)
  */
 unsigned int sysctl_sched_min_granularity			= 750000ULL;
-unsigned int normalized_sysctl_sched_min_granularity	= 750000ULL;
+static unsigned int normalized_sysctl_sched_min_granularity	= 750000ULL;
 
 /*
  * This value is kept at sysctl_sched_latency/sysctl_sched_min_granularity
@@ -82,7 +82,7 @@ unsigned int sysctl_sched_child_runs_first __read_mostly;
  * (default: 1 msec * (1 + ilog(ncpus)), units: nanoseconds)
  */
 unsigned int sysctl_sched_wakeup_granularity			= 1000000UL;
-unsigned int normalized_sysctl_sched_wakeup_granularity	= 1000000UL;
+static unsigned int normalized_sysctl_sched_wakeup_granularity	= 1000000UL;
 
 const_debug unsigned int sysctl_sched_migration_cost	= 500000UL;
 
@@ -116,7 +116,7 @@ unsigned int sysctl_sched_cfs_bandwidth_slice		= 5000UL;
  *
  * (default: ~20%)
  */
-unsigned int capacity_margin				= 1280;
+static unsigned int capacity_margin			= 1280;
 
 static inline void update_load_add(struct load_weight *lw, unsigned long inc)
 {