sched/fair: Rename check_preempt_wakeup() to check_preempt_wakeup_fair()

Other scheduling classes already postfix their similar methods
with the class name.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>

kernel/sched/fair.c

@@ -7994,7 +7994,7 @@ static void set_next_buddy(struct sched_entity *se)
 /*
  * Preempt the current task with a newly woken task if needed:
  */
-static void check_preempt_wakeup(struct rq *rq, struct task_struct *p, int wake_flags)
+static void check_preempt_wakeup_fair(struct rq *rq, struct task_struct *p, int wake_flags)
 {
 	struct task_struct *curr = rq->curr;
 	struct sched_entity *se = &curr->se, *pse = &p->se;
@@ -12830,7 +12830,7 @@ DEFINE_SCHED_CLASS(fair) = {
 	.yield_task		= yield_task_fair,
 	.yield_to_task		= yield_to_task_fair,
 
-	.check_preempt_curr	= check_preempt_wakeup,
+	.check_preempt_curr	= check_preempt_wakeup_fair,
 
 	.pick_next_task		= __pick_next_task_fair,
 	.put_prev_task		= put_prev_task_fair,