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Date:   Mon, 8 Mar 2021 08:49:31 +0100
From:   Christoph Hellwig <hch@infradead.org>
To:     Stefan Haberland <sth@linux.ibm.com>,
        Jan Hoeppner <hoeppner@linux.ibm.com>
Cc:     linux-s390@vger.kernel.org, linux-block@vger.kernel.org
Subject: can we kill the internal blkdev_get in the dasd driver now?
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Hi DASD maintainers,

I've recently changed the life time rules for struct block_device so
that is is a long-living instead of an ephemeral structure, that is the
whole device block_device exists from the time the disk is alloced until
it is feed, and the partitions exist from as soon as they are scanned.

With this the blkdev_get in the DASD driver should not be required, but
there seems to be a lot of magic that accounts of it in the open count.

Any chance one of you maintainers could try to remove it to further
simplify our open and liftetime rules?