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-rw-r--r--kernel/sched/psi.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/kernel/sched/psi.c b/kernel/sched/psi.c
index a4fa3aadfcba..a337f3e35997 100644
--- a/kernel/sched/psi.c
+++ b/kernel/sched/psi.c
@@ -1060,14 +1060,17 @@ int psi_show(struct seq_file *m, struct psi_group *group, enum psi_res res)
mutex_unlock(&group->avgs_lock);
for (full = 0; full < 2; full++) {
- unsigned long avg[3];
- u64 total;
+ unsigned long avg[3] = { 0, };
+ u64 total = 0;
int w;
- for (w = 0; w < 3; w++)
- avg[w] = group->avg[res * 2 + full][w];
- total = div_u64(group->total[PSI_AVGS][res * 2 + full],
- NSEC_PER_USEC);
+ /* CPU FULL is undefined at the system level */
+ if (!(group == &psi_system && res == PSI_CPU && full)) {
+ for (w = 0; w < 3; w++)
+ avg[w] = group->avg[res * 2 + full][w];
+ total = div_u64(group->total[PSI_AVGS][res * 2 + full],
+ NSEC_PER_USEC);
+ }
seq_printf(m, "%s avg10=%lu.%02lu avg60=%lu.%02lu avg300=%lu.%02lu total=%llu\n",
full ? "full" : "some",
@@ -1117,7 +1120,8 @@ struct psi_trigger *psi_trigger_create(struct psi_group *group,
t->state = state;
t->threshold = threshold_us * NSEC_PER_USEC;
t->win.size = window_us * NSEC_PER_USEC;
- window_reset(&t->win, 0, 0, 0);
+ window_reset(&t->win, sched_clock(),
+ group->total[PSI_POLL][t->state], 0);
t->event = 0;
t->last_event_time = 0;