
Avoid incorrect status change when deleting the pool. We can check for the conditions prior putting the pool to PENDING_DELETE state, in case delete conditions are met it is safe to change the state to PENDING_DELETE. Also, change create_vip and update_vip operations to respect PENDING_DELETE and avoid race conditions. Change-Id: I9f526901eb85bdb83cf4ff8131460eb592c900f8 Closes-Bug: #1242338