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x86: also show non-zero IRQ counts for vectors that currently don't have a handler

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It doesn't seem to make sense to hide these, even if their counts
can't change at the point in time they're being displayed.

[ tglx: arch/x86 adaptation ]

Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Jan Beulich 2007-10-17 18:04:40 +02:00 committed by Thomas Gleixner
parent 38e760a133
commit 072f5d82b5
2 changed files with 28 additions and 8 deletions
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18
arch/x86/kernel/irq_32.c
View file

@ -255,9 +255,17 @@ int show_interrupts(struct seq_file *p, void *v)
}
if (i < NR_IRQS) {
unsigned any_count = 0;
spin_lock_irqsave(&irq_desc[i].lock, flags);
#ifndef CONFIG_SMP
any_count = kstat_irqs(i);
#else
for_each_online_cpu(j)
any_count |= kstat_cpu(j).irqs[i];
#endif
action = irq_desc[i].action;
if (!action)
if (!action && !any_count)
goto skip;
seq_printf(p, "%3d: ",i);
#ifndef CONFIG_SMP
@ -268,10 +276,12 @@ int show_interrupts(struct seq_file *p, void *v)
#endif
seq_printf(p, " %8s", irq_desc[i].chip->name);
seq_printf(p, "-%-8s", irq_desc[i].name);
seq_printf(p, " %s", action->name);
for (action=action->next; action; action = action->next)
seq_printf(p, ", %s", action->name);
if (action) {
seq_printf(p, " %s", action->name);
while ((action = action->next) != NULL)
seq_printf(p, ", %s", action->name);
}
seq_putc(p, '\n');
skip:

18
arch/x86/kernel/irq_64.c
View file

@ -62,9 +62,17 @@ int show_interrupts(struct seq_file *p, void *v)
}
if (i < NR_IRQS) {
unsigned any_count = 0;
spin_lock_irqsave(&irq_desc[i].lock, flags);
#ifndef CONFIG_SMP
any_count = kstat_irqs(i);
#else
for_each_online_cpu(j)
any_count |= kstat_cpu(j).irqs[i];
#endif
action = irq_desc[i].action;
if (!action)
if (!action && !any_count)
goto skip;
seq_printf(p, "%3d: ",i);
#ifndef CONFIG_SMP
@ -76,9 +84,11 @@ int show_interrupts(struct seq_file *p, void *v)
seq_printf(p, " %8s", irq_desc[i].chip->name);
seq_printf(p, "-%-8s", irq_desc[i].name);
seq_printf(p, " %s", action->name);
for (action=action->next; action; action = action->next)
seq_printf(p, ", %s", action->name);
if (action) {
seq_printf(p, " %s", action->name);
while ((action = action->next) != NULL)
seq_printf(p, ", %s", action->name);
}
seq_putc(p, '\n');
skip:
spin_unlock_irqrestore(&irq_desc[i].lock, flags);