tree 398782b2f10edb956678224d7a8dc7ad6cf70e00
parent 4ef513006d309a8579dc56c9cd19b09e2dedf452
author jeremy.zhang <zhangjun_inspur@163.com> 1491477661 +0800
committer jeremy.zhang <zhangjun_inspur@163.com> 1491489492 +0800

Add size assert for creating volume snapshot

When a volume snapshot being created, the snapshot's volume size
will be equal to the origin volume's size.
This patch add this assert.

Change-Id: I28f30d68db251e9acc7a5f3f63b6663f900acbb4