- if (!inode->i_bdev) {
- /*
- * We take an additional bd_inode->i_count for inode,
- * and it's released in clear_inode() of inode.
- * So, we can access it via ->i_mapping always
- * without igrab().
- */
- atomic_inc(&bdev->bd_inode->i_count);
- inode->i_bdev = bdev;
- inode->i_mapping = bdev->bd_inode->i_mapping;
- list_add(&inode->i_devices, &bdev->bd_inodes);
- }
+ if (inode->i_bdev)
+ __bd_forget(inode);
+ inode->i_bdev = bdev;
+ inode->i_mapping = bdev->bd_inode->i_mapping;
+ list_add(&inode->i_devices, &bdev->bd_inodes);