C++ (Cpp) device_create_vargs Beispiele

Beispiel #1

Datei: backing-dev.c Projekt: 020gzh/linux

int bdi_register(struct backing_dev_info *bdi, struct device *parent,
		const char *fmt, ...)
{
	va_list args;
	struct device *dev;

	if (bdi->dev)	/* The driver needs to use separate queues per device */
		return 0;

	va_start(args, fmt);
	dev = device_create_vargs(bdi_class, parent, MKDEV(0, 0), bdi, fmt, args);
	va_end(args);
	if (IS_ERR(dev))
		return PTR_ERR(dev);

	bdi->dev = dev;

	bdi_debug_register(bdi, dev_name(dev));
	set_bit(WB_registered, &bdi->wb.state);

	spin_lock_bh(&bdi_lock);
	list_add_tail_rcu(&bdi->bdi_list, &bdi_list);
	spin_unlock_bh(&bdi_lock);

	trace_writeback_bdi_register(bdi);
	return 0;
}

Beispiel #2

Datei: backing-dev.c Projekt: SantoshShilimkar/linux

int bdi_register_va(struct backing_dev_info *bdi, const char *fmt, va_list args)
{
	struct device *dev;

	if (bdi->dev)	/* The driver needs to use separate queues per device */
		return 0;

	dev = device_create_vargs(bdi_class, NULL, MKDEV(0, 0), bdi, fmt, args);
	if (IS_ERR(dev))
		return PTR_ERR(dev);

	if (bdi_debug_register(bdi, dev_name(dev))) {
		device_destroy(bdi_class, dev->devt);
		return -ENOMEM;
	}
	cgwb_bdi_register(bdi);
	bdi->dev = dev;

	set_bit(WB_registered, &bdi->wb.state);

	spin_lock_bh(&bdi_lock);
	list_add_tail_rcu(&bdi->bdi_list, &bdi_list);
	spin_unlock_bh(&bdi_lock);

	trace_writeback_bdi_register(bdi);
	return 0;
}