Yuanhong Peng d1d8439f3f Fixes #29654: take reference to RWLayer while committing/exporting ...

Take an extra reference to rwlayer while the container is being
committed or exported to avoid the removal of that layer.

Also add some checks before commit/export.

Signed-off-by: Yuanhong Peng <pengyuanhong@huawei.com>
Upstream-commit: 8c32659979150630a2c4eae4e7da944806c46297
Component: engine

2017-09-22 09:47:42 +08:00

..

engine

Fixes #29654: take reference to RWLayer while committing/exporting

2017-09-22 09:47:42 +08:00