diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/irq/proc.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c index 378b523a1b00..5a1805b0b8a9 100644 --- a/kernel/irq/proc.c +++ b/kernel/irq/proc.c @@ -523,7 +523,16 @@ int show_interrupts(struct seq_file *p, void *v) return 0; seq_printf(p, "%*d:", prec, i); - irq_proc_emit_counts(p, &desc->kstat_irqs->cnt); + + /* + * Always output per CPU interrupts. Output device interrupts only when + * desc::tot_count is not zero. + */ + if (irq_settings_is_per_cpu(desc) || irq_settings_is_per_cpu_devid(desc) || + data_race(desc->tot_count)) + irq_proc_emit_counts(p, &desc->kstat_irqs->cnt); + else + irq_proc_emit_zero_counts(p, num_online_cpus()); seq_putc(p, ' '); guard(raw_spinlock_irq)(&desc->lock); |