[BugFix: MINI-1875]
[BugFix: MINI-1875]

Fix colo cache disk umount callback

Signed-off-by: Alan Jager <7ba0221af525cfcc7adbf94f7fc6b46fa1dcb7c9@outlook.com>

zstackio/zstack-utility,zstackorg/zstack-utility,zstackio/zstack-utility,zstackorg/zstack-utility,zstackio/zstack-utility,zstackorg/zstack-utility