sched/fair: Update comments after sched_tick() rename.

JIRA: https://issues.redhat.com/browse/RHEL-78821
Conflicts: Minor context differences.

commit ee8118c
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Thu Dec 19 09:58:39 2024 +0100

    sched/fair: Update comments after sched_tick() rename.

    scheduler_tick() was renamed to sched_tick() in 86dd6c0
    ("sched/balancing: Rename scheduler_tick() => sched_tick()").

    Update comments still referring to scheduler_tick.

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
    Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
    Link: https://lkml.kernel.org/r/20241219085839.302378-1-bigeasy@linutronix.de

Signed-off-by: Phil Auld <pauld@redhat.com>

Author: auldp

kernel/sched/fair.c

@@ -12377,9 +12377,9 @@ static int sched_balance_newidle(struct rq *this_rq, struct rq_flags *rf)
 /*
  * This softirq handler is triggered via SCHED_SOFTIRQ from two places:
  *
- * - directly from the local scheduler_tick() for periodic load balancing
+ * - directly from the local sched_tick() for periodic load balancing
  *
- * - indirectly from a remote scheduler_tick() for NOHZ idle balancing
+ * - indirectly from a remote sched_tick() for NOHZ idle balancing
  *   through the SMP cross-call nohz_csd_func()
  */
 static __latent_entropy void sched_balance_softirq(struct softirq_action *h)