Mike Snitzer 048e5a07f2 dm cache metadata: do not allow the data block size to change ...

The block size for the dm-cache's data device must remained fixed for
the life of the cache.  Disallow any attempt to change the cache's data
block size.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>
Cc: stable@vger.kernel.org

2014-07-15 14:07:50 -04:00

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