On Wed, Mar 29, 2017 at 12:56:17PM +0200, Jan Kara wrote: > Similarly to set_bdev_super() NILFS2 just used block device reference to > bdi. Convert it to properly getting bdi reference. The reference will > get automatically dropped on superblock destruction. I really wish we could get rid of this open coding in block based file systems.. Otherwise looks fine: Reviewed-by: Christoph Hellwig <hch@xxxxxx>