Re: [PATCH 2/9] block: add a bdev_is_partition helper

[Christoph Hellwig]

On Thu, Sep 03, 2020 at 10:19:34AM +0200, Ulf Hansson wrote:
> On Thu, 3 Sep 2020 at 07:42, Christoph Hellwig <hch@xxxxxx> wrote:
> >
> > Add a littler helper to make the somewhat arcane bd_contains checks a
> > little more obvious.
> >
> > Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> 
> Not sure why we have both "bd_contains" and "bd_partno", nevertheless,
> feel free to add:

Right now both are needed for how blkdev_get/put work.  But I plan to
eventual kill off bd_contains after some major surgery to that code.