EXPORT_SYMBOL(blkdev_compat_ptr_ioctl);
#endif
+static bool blkdev_pr_allowed(struct block_device *bdev)
+{
+ /* no sense to make reservations for partitions */
+ if (bdev_is_partition(bdev))
+ return false;
+
+ if (capable(CAP_SYS_ADMIN))
+ return true;
+
+ return false;
+}
+
static int blkdev_pr_register(struct block_device *bdev,
struct pr_registration __user *arg)
{
const struct pr_ops *ops = bdev->bd_disk->fops->pr_ops;
struct pr_registration reg;
- if (!capable(CAP_SYS_ADMIN))
+ if (!blkdev_pr_allowed(bdev))
return -EPERM;
if (!ops || !ops->pr_register)
return -EOPNOTSUPP;
const struct pr_ops *ops = bdev->bd_disk->fops->pr_ops;
struct pr_reservation rsv;
- if (!capable(CAP_SYS_ADMIN))
+ if (!blkdev_pr_allowed(bdev))
return -EPERM;
if (!ops || !ops->pr_reserve)
return -EOPNOTSUPP;
const struct pr_ops *ops = bdev->bd_disk->fops->pr_ops;
struct pr_reservation rsv;
- if (!capable(CAP_SYS_ADMIN))
+ if (!blkdev_pr_allowed(bdev))
return -EPERM;
if (!ops || !ops->pr_release)
return -EOPNOTSUPP;
const struct pr_ops *ops = bdev->bd_disk->fops->pr_ops;
struct pr_preempt p;
- if (!capable(CAP_SYS_ADMIN))
+ if (!blkdev_pr_allowed(bdev))
return -EPERM;
if (!ops || !ops->pr_preempt)
return -EOPNOTSUPP;
const struct pr_ops *ops = bdev->bd_disk->fops->pr_ops;
struct pr_clear c;
- if (!capable(CAP_SYS_ADMIN))
+ if (!blkdev_pr_allowed(bdev))
return -EPERM;
if (!ops || !ops->pr_clear)
return -EOPNOTSUPP;