tree c32542716d252176a5e1ea43670d199060df8d16
parent 9aec8629ec829fc9403788cd959e05dd87988bd1
author Mike Snitzer <snitzer@redhat.com> 1405371579 -0400
committer Mike Snitzer <snitzer@redhat.com> 1405447670 -0400

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