irq: Add irq_tasks, move NVMe to it

dev/block/nvme/pci.c

@@ -23,12 +23,11 @@ struct nvme_irq_handler {
     struct nvme_ctrl* controller;
 };
 
-static enum irq_status nvme_irq_raise(struct irq_handler* self) {
+static void nvme_irq_thread(struct irq_handler* self) {
     struct nvme_irq_handler* handler = containerof(self, struct nvme_irq_handler, handler);
     struct nvme_io_queue* queue = nvme_ctrl_io_queue(handler->controller);
     if (queue)
         nvme_io_queue_drain(queue);
-    return IRQ_STATUS_HANDLED;
 }
 
 static errno_t map_bar(struct pci_bar* bar, void** out) {
@@ -84,9 +83,16 @@ static errno_t nvme_pci_probe(struct pci_device* dev, const struct pci_match* ma
         struct nvme_irq_handler* handler = mem_alloc(sizeof(*handler), 0);
         if (!handler)
             return ENOMEM;
-        handler->handler.raise = nvme_irq_raise;
+        handler->handler.thread = nvme_irq_thread;
         handler->controller = controller;
-        irq_line_attach(irq_line, &handler->handler);
+
+        char name[32];
+        ksnprintf(name, sizeof(name), "nvme-" PCI_ADDR_FMT, PCI_ADDR_ARGS(&dev->address));
+        status = irq_line_attach_task(irq_line, &handler->handler, name);
+        if (status) {
+            mem_free(handler);
+            return status;
+        }
         if (irq_line->unmask)
             irq_line->unmask(irq_line);
     }