[PATCH linux-next v3 1/4] sched/psi: Change update_triggers() to a 'void' function

[<yang.yang29@zte.com.cn>]

From: Yang Yang <yang.yang29@zte.com.cn>

Update_triggers() always returns now + group->rtpoll_min_period, and the
return value is only used by psi_rtpoll_work(), so change update_triggers()
to a void function, let group->rtpoll_next_update = now +
group->rtpoll_min_period directly.

This will avoid unnecessary function return value passing & simplifies
the function.

Suggested-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Yang Yang <yang.yang29@zte.com.cn>
---
 kernel/sched/psi.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/kernel/sched/psi.c b/kernel/sched/psi.c
index 1d0f634725a6..be853f227e40 100644
--- a/kernel/sched/psi.c
+++ b/kernel/sched/psi.c
@@ -434,7 +434,7 @@ static u64 window_update(struct psi_window *win, u64 now, u64 value)
 	return growth;
 }

-static u64 update_triggers(struct psi_group *group, u64 now, bool *update_total,
+static void update_triggers(struct psi_group *group, u64 now, bool *update_total,
 						   enum psi_aggregators aggregator)
 {
 	struct psi_trigger *t;
@@ -503,8 +503,6 @@ static u64 update_triggers(struct psi_group *group, u64 now, bool *update_total,
 		/* Reset threshold breach flag once event got generated */
 		t->pending_event = false;
 	}
-
-	return now + group->rtpoll_min_period;
 }

 static u64 update_averages(struct psi_group *group, u64 now)
@@ -706,7 +704,8 @@ static void psi_rtpoll_work(struct psi_group *group)
 	}

 	if (now >= group->rtpoll_next_update) {
-		group->rtpoll_next_update = update_triggers(group, now, &update_total, PSI_POLL);
+		update_triggers(group, now, &update_total, PSI_POLL);
+		group->rtpoll_next_update = now + group->rtpoll_min_period;
 		if (update_total)
 			memcpy(group->rtpoll_total, group->total[PSI_POLL],
 				   sizeof(group->rtpoll_total));
-- 
2.25.1