From mboxrd@z Thu Jan  1 00:00:00 1970
From: hch@infradead.org (Christoph Hellwig)
Date: Fri, 17 Jul 2015 02:30:07 -0700
Subject: [PATCH] NVMe: Reread partitions on metadata formats
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On Thu, Jul 16, 2015@09:47:15PM -0400, Martin K. Petersen wrote:
> The flags, protection interval, tag size, etc. are per-device
> properties.

In which case we should just add them directly to the gendisk..