diff options
| author | Yinghai Lu <yhlu.kernel@gmail.com> | 2008-08-19 20:50:20 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-16 16:52:51 +0200 |
| commit | 52b17329d6d0a4824b89206803a430915031ff23 (patch) | |
| tree | 714884d90d67a771eef01863a677d502b2d758fc /arch | |
| parent | a2f9f43858db64cb8b45c4f6746d7a52b80d4dcb (diff) | |
x86_64: make /proc/interrupts work with dyn irq_desc
loop with irq_desc list
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/irq_64.c | 31 |
1 files changed, 24 insertions, 7 deletions
diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c index 5d5976e0311a..7bd841a9c640 100644 --- a/arch/x86/kernel/irq_64.c +++ b/arch/x86/kernel/irq_64.c @@ -70,9 +70,27 @@ static inline void stack_overflow_check(struct pt_regs *regs) int show_interrupts(struct seq_file *p, void *v) { - int i = *(loff_t *) v, j; + int i, j; struct irqaction * action; unsigned long flags; + unsigned int entries; + struct irq_desc *desc; + int tail = 0; + +#ifdef CONFIG_HAVE_SPARSE_IRQ + desc = (struct irq_desc *)v; + entries = -1U; + i = desc->irq; + if (!desc->next) + tail = 1; +#else + entries = nr_irqs - 1; + i = *(loff_t *) v; + if (i == nr_irqs) + tail = 1; + else + desc = irq_to_desc(i); +#endif if (i == 0) { seq_printf(p, " "); @@ -81,12 +99,8 @@ int show_interrupts(struct seq_file *p, void *v) seq_putc(p, '\n'); } - if (i < nr_irqs) { + if (i <= entries) { unsigned any_count = 0; - struct irq_desc *desc = irq_to_desc(i); - - if (!desc) - return 0; spin_lock_irqsave(&desc->lock, flags); #ifndef CONFIG_SMP @@ -116,7 +130,9 @@ int show_interrupts(struct seq_file *p, void *v) seq_putc(p, '\n'); skip: spin_unlock_irqrestore(&desc->lock, flags); - } else if (i == nr_irqs) { + } + + if (tail) { seq_printf(p, "NMI: "); for_each_online_cpu(j) seq_printf(p, "%10u ", cpu_pda(j)->__nmi_count); @@ -155,6 +171,7 @@ skip: seq_printf(p, " Spurious interrupts\n"); seq_printf(p, "ERR: %10u\n", atomic_read(&irq_err_count)); } + return 0; } |