diff options
Diffstat (limited to 'arch/x86/kernel/irq_64.c')
| -rw-r--r-- | arch/x86/kernel/irq_64.c | 15 |
1 files changed, 8 insertions, 7 deletions
diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c index a174a217eb1a..6383d50f82ea 100644 --- a/arch/x86/kernel/irq_64.c +++ b/arch/x86/kernel/irq_64.c @@ -80,16 +80,17 @@ asmlinkage unsigned int __irq_entry do_IRQ(struct pt_regs *regs) } #ifdef CONFIG_HOTPLUG_CPU -void fixup_irqs(cpumask_t map) +/* A cpu has been removed from cpu_online_mask. Reset irq affinities. */ +void fixup_irqs(void) { unsigned int irq; static int warned; struct irq_desc *desc; for_each_irq_desc(irq, desc) { - cpumask_t mask; int break_affinity = 0; int set_affinity = 1; + const struct cpumask *affinity; if (!desc) continue; @@ -99,23 +100,23 @@ void fixup_irqs(cpumask_t map) /* interrupt's are disabled at this point */ spin_lock(&desc->lock); + affinity = &desc->affinity; if (!irq_has_action(irq) || - cpus_equal(desc->affinity, map)) { + cpumask_equal(affinity, cpu_online_mask)) { spin_unlock(&desc->lock); continue; } - cpus_and(mask, desc->affinity, map); - if (cpus_empty(mask)) { + if (cpumask_any_and(affinity, cpu_online_mask) >= nr_cpu_ids) { break_affinity = 1; - mask = map; + affinity = cpu_all_mask; } if (desc->chip->mask) desc->chip->mask(irq); if (desc->chip->set_affinity) - desc->chip->set_affinity(irq, mask); + desc->chip->set_affinity(irq, affinity); else if (!(warned++)) set_affinity = 0; |