1, change the owner of page to vnode
2, save the file path in vnode

close: #I4AGBR
Signed-off-by: NLeon Chan <chenwei26@huawei.com>
Change-Id: I04f93e344c7231d1731746456babc419a6139e52
Signed-off-by: NLeon Chan <chenwei26@huawei.com>