UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

x86: Use generic show_interrupts 

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This commit is contained in:
Thomas Gleixner 2010-12-16 17:59:57 +01:00
parent 1a0e62a49a
commit 517e498156
2 changed files with 3 additions and 55 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/x86/Kconfig
View File

@ -66,6 +66,7 @@ config X86
select HAVE_SPARSE_IRQ
select GENERIC_IRQ_PROBE
select GENERIC_PENDING_IRQ if SMP
select GENERIC_IRQ_SHOW
select USE_GENERIC_SMP_HELPERS if SMP
config INSTRUCTION_DECODER

57
arch/x86/kernel/irq.c
View File

@ -44,9 +44,9 @@ void ack_bad_irq(unsigned int irq)
#define irq_stats(x) (&per_cpu(irq_stat, x))
/*
* /proc/interrupts printing:
* /proc/interrupts printing for arch specific interrupts
*/
static int show_other_interrupts(struct seq_file *p, int prec)
int arch_show_interrupts(struct seq_file *p, int prec)
{
int j;
@ -122,59 +122,6 @@ static int show_other_interrupts(struct seq_file *p, int prec)
return 0;
}
int show_interrupts(struct seq_file *p, void *v)
{
unsigned long flags, any_count = 0;
int i = *(loff_t *) v, j, prec;
struct irqaction *action;
struct irq_desc *desc;
if (i > nr_irqs)
return 0;
for (prec = 3, j = 1000; prec < 10 && j <= nr_irqs; ++prec)
j *= 10;
if (i == nr_irqs)
return show_other_interrupts(p, prec);
/* print header */
if (i == 0) {
seq_printf(p, "%*s", prec + 8, "");
for_each_online_cpu(j)
seq_printf(p, "CPU%-8d", j);
seq_putc(p, '\n');
}
desc = irq_to_desc(i);
if (!desc)
return 0;
raw_spin_lock_irqsave(&desc->lock, flags);
for_each_online_cpu(j)
any_count |= kstat_irqs_cpu(i, j);
action = desc->action;
if (!action && !any_count)
goto out;
seq_printf(p, "%*d: ", prec, i);
for_each_online_cpu(j)
seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
seq_printf(p, " %8s", desc->irq_data.chip->name);
seq_printf(p, "-%-8s", desc->name);
if (action) {
seq_printf(p, " %s", action->name);
while ((action = action->next) != NULL)
seq_printf(p, ", %s", action->name);
}
seq_putc(p, '\n');
out:
raw_spin_unlock_irqrestore(&desc->lock, flags);
return 0;
}
/*
* /proc/stat helpers
*/