tree eefe6fe46fc3d389932bcac4988d9a253649f599
parent 66bb2644cac8b5cc1cc477959aa37dcfe6317a23
author Mike Snitzer <snitzer@redhat.com> 1376664859 -0400
committer Mike Snitzer <snitzer@redhat.com> 1377262933 -0400

dm cache: add data block size limits to code and Documentation

Place upper bound on the cache's data block size (1GB).

Inform users that the data block size can't be any arbitrary number,
i.e. its value must be between 32KB and 1GB.  Also, it should be a
multiple of 32KB.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Acked-by: Joe Thornber <ejt@redhat.com>