Ejemplos de xenbus_probe_node en C++ (Cpp)

Ejemplo n.º 1

/* device/<typename>/<name> */
static int xenbus_probe_frontend(const char *type, const char *name)
{
	char *nodename;
	int err;

	nodename = kasprintf(GFP_KERNEL, "%s/%s/%s", xenbus_frontend.root, type, name);
	if (!nodename)
		return -ENOMEM;

	DPRINTK("%s", nodename);

	err = xenbus_probe_node(&xenbus_frontend, type, nodename);
	kfree(nodename);
	return err;
}

Ejemplo n.º 2

Archivo: xenbus_probe_frontend.c Proyecto: 303750856/linux-3.1

/* device/<typename>/<name> */
static int xenbus_probe_frontend(struct xen_bus_type *bus, const char *type,
				 const char *name)
{
	char *nodename;
	int err;

	nodename = kasprintf(GFP_KERNEL, "%s/%s/%s", bus->root, type, name);
	if (!nodename)
		return -ENOMEM;

	DPRINTK("%s", nodename);

	err = xenbus_probe_node(bus, type, nodename);
	kfree(nodename);
	return err;
}

Ejemplo n.º 3

Archivo: xenbus_probe_backend.c Proyecto: Jinjian0609/UVP-Tools

/* backend/<typename>/<frontend-uuid>/<name> */
static int xenbus_probe_backend_unit(const char *dir,
				     const char *type,
				     const char *name)
{
	char *nodename;
	int err;

	nodename = kasprintf(GFP_KERNEL, "%s/%s", dir, name);
	if (!nodename)
		return -ENOMEM;

	DPRINTK("%s\n", nodename);

	err = xenbus_probe_node(&xenbus_backend, type, nodename);
	kfree(nodename);
	return err;
}

Ejemplo n.º 4

Archivo: xenbus_probe_frontend.c Proyecto: AD5GB/kernel_n5_3.10-experimental

/* device/<typename>/<name> */
static int xenbus_probe_frontend(struct xen_bus_type *bus, const char *type,
				 const char *name)
{
	char *nodename;
	int err;

	/* ignore console/0 */
	if (!strncmp(type, "console", 7) && !strncmp(name, "0", 1)) {
		DPRINTK("Ignoring buggy device entry console/0");
		return 0;
	}

	nodename = kasprintf(GFP_KERNEL, "%s/%s/%s", bus->root, type, name);
	if (!nodename)
		return -ENOMEM;

	DPRINTK("%s", nodename);

	err = xenbus_probe_node(bus, type, nodename);
	kfree(nodename);
	return err;
}

Ejemplo n.º 5

Archivo: xenbus_probe.c Proyecto: 020gzh/linux

void xenbus_dev_changed(const char *node, struct xen_bus_type *bus)
{
	int exists, rootlen;
	struct xenbus_device *dev;
	char type[XEN_BUS_ID_SIZE];
	const char *p, *root;

	if (char_count(node, '/') < 2)
		return;

	exists = xenbus_exists(XBT_NIL, node, "");
	if (!exists) {
		xenbus_cleanup_devices(node, &bus->bus);
		return;
	}

	/* backend/<type>/... or device/<type>/... */
	p = strchr(node, '/') + 1;
	snprintf(type, XEN_BUS_ID_SIZE, "%.*s", (int)strcspn(p, "/"), p);
	type[XEN_BUS_ID_SIZE-1] = '\0';

	rootlen = strsep_len(node, '/', bus->levels);
	if (rootlen < 0)
		return;
	root = kasprintf(GFP_KERNEL, "%.*s", rootlen, node);
	if (!root)
		return;

	dev = xenbus_device_find(root, &bus->bus);
	if (!dev)
		xenbus_probe_node(bus, type, root);
	else
		put_device(&dev->dev);

	kfree(root);
}