diff options
Diffstat (limited to 'drivers/block/virtio_blk.c')
| -rw-r--r-- | drivers/block/virtio_blk.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c index 759dee8330ac..67dcb193ab2e 100644 --- a/drivers/block/virtio_blk.c +++ b/drivers/block/virtio_blk.c @@ -225,6 +225,16 @@ static int virtblk_ioctl(struct block_device *bdev, fmode_t mode, struct gendisk *disk = bdev->bd_disk; struct virtio_blk *vblk = disk->private_data; + if (cmd == 'VBID') { + void __user *usr_data = (void __user *)data; + char id_str[VIRTIO_BLK_ID_BYTES]; + int err; + + err = virtblk_get_id(disk, id_str); + if (!err && copy_to_user(usr_data, id_str, VIRTIO_BLK_ID_BYTES)) + err = -EFAULT; + return err; + } /* * Only allow the generic SCSI ioctls if the host can support it. */ |
