From: Baokun Li <libaokun1@xxxxxxxxxx>
Because after an object is dropped, requests for that object are useless,
cancel them to avoid causing other problems.
This prepares for the later addition of cancel_work_sync(). After the
reopen requests is generated, cancel it to avoid cancel_work_sync()
blocking by waiting for daemon to complete the reopen requests.
Signed-off-by: Baokun Li <libaokun1@xxxxxxxxxx>
Acked-by: Jeff Layton <jlayton@xxxxxxxxxx>