On Wed, Jul 1, 2020 at 2:06 AM Christoph Hellwig <hch@xxxxxx> wrote: > > Except for pktdvd, the only places setting congested bits are file > systems that allocate their own backing_dev_info structures. And > pktdvd is a deprecated driver that isn't useful in stack setup > either. So remove the dead congested_fn stacking infrastructure. > > Signed-off-by: Christoph Hellwig <hch@xxxxxx> For md bits: Acked-by: Song Liu <song@xxxxxxxxxx>