[dm-devel] [PATCH 05/10] block: do not reassig ->bi_bdev when partition remapping

[Christoph Hellwig]

On Mon, Jan 25, 2021 at 10:53:36AM -0700, Jens Axboe wrote:
> On Sun, Jan 24, 2021 at 3:05 AM Christoph Hellwig <hch at lst.de> wrote:
> >
> > There is no good reason to reassign ->bi_bdev when remapping the
> > partition-relative block number to the device wide one, as all the
> > information required by the drivers comes from the gendisk anyway.
> >
> > Keeping the original ->bi_bdev alive will allow to greatly simplify
> > the partition-away I/O accounting.
> 
> This one causes boot failures for me on my laptop...

Any output to share?  Details of the config?