diff options
Diffstat (limited to 'arch/x86/kernel/irq.c')
| -rw-r--r-- | arch/x86/kernel/irq.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index f34fe7444836..9696007df67b 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -440,9 +440,9 @@ void fixup_irqs(void) int ret; for_each_irq_desc(irq, desc) { + const struct cpumask *affinity; int break_affinity = 0; int set_affinity = 1; - const struct cpumask *affinity; if (!desc) continue; @@ -454,19 +454,36 @@ void fixup_irqs(void) data = irq_desc_get_irq_data(desc); affinity = irq_data_get_affinity_mask(data); + if (!irq_has_action(irq) || irqd_is_per_cpu(data) || cpumask_subset(affinity, cpu_online_mask)) { + irq_fixup_move_pending(desc, false); raw_spin_unlock(&desc->lock); continue; } /* - * Complete the irq move. This cpu is going down and for - * non intr-remapping case, we can't wait till this interrupt - * arrives at this cpu before completing the irq move. + * Complete an eventually pending irq move cleanup. If this + * interrupt was moved in hard irq context, then the + * vectors need to be cleaned up. It can't wait until this + * interrupt actually happens and this CPU was involved. */ irq_force_complete_move(desc); + /* + * If there is a setaffinity pending, then try to reuse the + * pending mask, so the last change of the affinity does + * not get lost. If there is no move pending or the pending + * mask does not contain any online CPU, use the current + * affinity mask. + */ + if (irq_fixup_move_pending(desc, true)) + affinity = desc->pending_mask; + + /* + * If the mask does not contain an offline CPU, break + * affinity and use cpu_online_mask as fall back. + */ if (cpumask_any_and(affinity, cpu_online_mask) >= nr_cpu_ids) { break_affinity = 1; affinity = cpu_online_mask; |