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References: <20200701090622.3354860-1-hch@lst.de> <20200701090622.3354860-5-hch@lst.de>
In-Reply-To: <20200701090622.3354860-5-hch@lst.de>
From:   Song Liu <song@kernel.org>
Date:   Wed, 1 Jul 2020 22:36:13 -0700
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Subject: Re: [PATCH 4/4] writeback: remove bdi->congested_fn
To:     Christoph Hellwig <hch@lst.de>
Cc:     Jens Axboe <axboe@kernel.dk>, Tejun Heo <tj@kernel.org>,
        dm-devel@redhat.com, cgroups@vger.kernel.org,
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On Wed, Jul 1, 2020 at 2:06 AM Christoph Hellwig <hch@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@lst.de>

For md bits:

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