/*
* hooks: /n/, see "layering violations".
*/
- ret = devcgroup_inode_permission(bdev->bd_inode, perm);
- if (ret != 0) {
- bdput(bdev);
- return ret;
+ if (!for_part) {
+ ret = devcgroup_inode_permission(bdev->bd_inode, perm);
+ if (ret != 0) {
+ bdput(bdev);
+ return ret;
+ }
}
- lock_kernel();
restart:
ret = -ENXIO;
disk = get_gendisk(bdev->bd_dev, &partno);
if (!disk)
- goto out_unlock_kernel;
+ goto out;
mutex_lock_nested(&bdev->bd_mutex, for_part);
if (!bdev->bd_openers) {
if (for_part)
bdev->bd_part_count++;
mutex_unlock(&bdev->bd_mutex);
- unlock_kernel();
return 0;
out_clear:
bdev->bd_contains = NULL;
out_unlock_bdev:
mutex_unlock(&bdev->bd_mutex);
- out_unlock_kernel:
- unlock_kernel();
-
+ out:
if (disk)
module_put(disk->fops->owner);
put_disk(disk);
struct block_device *victim = NULL;
mutex_lock_nested(&bdev->bd_mutex, for_part);
- lock_kernel();
if (for_part)
bdev->bd_part_count--;
victim = bdev->bd_contains;
bdev->bd_contains = NULL;
}
- unlock_kernel();
mutex_unlock(&bdev->bd_mutex);
bdput(bdev);
if (victim)