[dm-devel] [PATCH 4/4] writeback: remove bdi->congested_fn

[Song Liu]

On Wed, Jul 1, 2020 at 2:06 AM Christoph Hellwig <hch at lst.de> 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 at lst.de>

For md bits:

Acked-by: Song Liu <song at kernel.org>