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From:   Christoph Hellwig <hch@infradead.org>
To:     David Hildenbrand <david@redhat.com>
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On Mon, Jan 23, 2023 at 03:20:41PM +0100, David Hildenbrand wrote:
> > The block bio code then only needs a single bit of state: pinned or not
> > pinned.
> 
> Unfortunately, I'll have to let BIO experts comment on that :) I only know
> the MM side of things here.

It can work for bios.