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sched/psi: Change update_triggers() to a 'void' function

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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.

[ mingo: Updated changelog ]

Suggested-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Yang Yang <yang.yang29@zte.com.cn>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/202310092024289721617@zte.com.cn
This commit is contained in:
Yang Yang 2023-10-09 20:24:28 +08:00 • committed by Ingo Molnar
parent 5b77261c55
commit e03dc9fa06
1 changed files with 3 additions and 4 deletions
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7
kernel/sched/psi.c
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@ -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));