nvme: don't blindly overwrite identifiers on disk revalidate

Instead validate that these identifiers do not change, as that is
prohibited by the specification.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Keith Busch <keith.busch@intel.com>
This commit is contained in:
Christoph Hellwig 2017-08-17 14:10:00 +02:00
commit 1d5df6af8c