vnd_desc
struct vnd_desc *dev_ptr = arg;
struct vnd_desc *vnds;
struct vnd_desc *dev_ptr = arg;
*dev_ptr = (struct vnd_desc) {
struct vnd_desc *dev_ptr = arg;
((struct vnd_desc*)pm_cur->refdev)->pm->blocked--;
((struct vnd_desc*)pm_cur->refdev)->blocked = 0;
struct vnd_desc *dev_ptr = ((struct part_entry *)arg)[opt].dev_ptr;
struct vnd_desc *dev_ptr = arg;