XENVBD_MAJOR
case XENVBD_MAJOR:
gd->major = XENVBD_MAJOR;
major = XENVBD_MAJOR;
if (major != XENVBD_MAJOR) {
if (register_blkdev(XENVBD_MAJOR, DEV_NAME)) {
XENVBD_MAJOR, DEV_NAME);
unregister_blkdev(XENVBD_MAJOR, DEV_NAME);
unregister_blkdev(XENVBD_MAJOR, DEV_NAME);
MODULE_ALIAS_BLOCKDEV_MAJOR(XENVBD_MAJOR);