-static int migrate_irq_remapped_level_desc(struct irq_desc *desc)
-{
- int ret = -1;
- struct irq_cfg *cfg = desc->chip_data;
-
- mask_IO_APIC_irq_desc(desc);
-
- if (io_apic_level_ack_pending(cfg)) {
- /*
- * Interrupt in progress. Migrating irq now will change the
- * vector information in the IO-APIC RTE and that will confuse
- * the EOI broadcast performed by cpu.
- * So, delay the irq migration to the next instance.
- */
- schedule_delayed_work(&ir_migration_work, 1);
- goto unmask;
- }
-
- /* everthing is clear. we have right of way */
- migrate_ioapic_irq_desc(desc, desc->pending_mask);
-
- ret = 0;
- desc->status &= ~IRQ_MOVE_PENDING;
- cpumask_clear(desc->pending_mask);
-
-unmask:
- unmask_IO_APIC_irq_desc(desc);
-
- return ret;
-}
-
-static void ir_irq_migration(struct work_struct *work)
-{
- unsigned int irq;
- struct irq_desc *desc;
-
- for_each_irq_desc(irq, desc) {
- if (desc->status & IRQ_MOVE_PENDING) {
- unsigned long flags;
-
- spin_lock_irqsave(&desc->lock, flags);
- if (!desc->chip->set_affinity ||
- !(desc->status & IRQ_MOVE_PENDING)) {
- desc->status &= ~IRQ_MOVE_PENDING;
- spin_unlock_irqrestore(&desc->lock, flags);
- continue;
- }
-
- desc->chip->set_affinity(irq, desc->pending_mask);
- spin_unlock_irqrestore(&desc->lock, flags);
- }
- }
-}
-