diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/block/rbd.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c index d250549d27a..01ed7672a07 100644 --- a/drivers/block/rbd.c +++ b/drivers/block/rbd.c @@ -323,6 +323,7 @@ struct rbd_device { int dev_id; /* blkdev unique id */ int major; /* blkdev assigned major */ + int minor; struct gendisk *disk; /* blkdev's gendisk and rq */ u32 image_format; /* Either 1 or 2 */ @@ -3397,7 +3398,7 @@ static int rbd_init_disk(struct rbd_device *rbd_dev) snprintf(disk->disk_name, sizeof(disk->disk_name), RBD_DRV_NAME "%d", rbd_dev->dev_id); disk->major = rbd_dev->major; - disk->first_minor = 0; + disk->first_minor = rbd_dev->minor; disk->fops = &rbd_bd_ops; disk->private_data = rbd_dev; @@ -3469,7 +3470,14 @@ static ssize_t rbd_major_show(struct device *dev, return sprintf(buf, "%d\n", rbd_dev->major); return sprintf(buf, "(none)\n"); +} + +static ssize_t rbd_minor_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct rbd_device *rbd_dev = dev_to_rbd_dev(dev); + return sprintf(buf, "%d\n", rbd_dev->minor); } static ssize_t rbd_client_id_show(struct device *dev, @@ -3591,6 +3599,7 @@ static ssize_t rbd_image_refresh(struct device *dev, static DEVICE_ATTR(size, S_IRUGO, rbd_size_show, NULL); static DEVICE_ATTR(features, S_IRUGO, rbd_features_show, NULL); static DEVICE_ATTR(major, S_IRUGO, rbd_major_show, NULL); +static DEVICE_ATTR(minor, S_IRUGO, rbd_minor_show, NULL); static DEVICE_ATTR(client_id, S_IRUGO, rbd_client_id_show, NULL); static DEVICE_ATTR(pool, S_IRUGO, rbd_pool_show, NULL); static DEVICE_ATTR(pool_id, S_IRUGO, rbd_pool_id_show, NULL); @@ -3604,6 +3613,7 @@ static struct attribute *rbd_attrs[] = { &dev_attr_size.attr, &dev_attr_features.attr, &dev_attr_major.attr, + &dev_attr_minor.attr, &dev_attr_client_id.attr, &dev_attr_pool.attr, &dev_attr_pool_id.attr, @@ -4848,6 +4858,7 @@ static int rbd_dev_device_setup(struct rbd_device *rbd_dev) if (ret < 0) goto err_out_id; rbd_dev->major = ret; + rbd_dev->minor = 0; /* Set up the blkdev mapping. */ |