Adding non atomic operations to mempool. pool can be used by single threaded
application without need to lock

Change-Id: I00ee1182c36fe52b7c540a4aee2c282605533aae
Signed-off-by: Eyal Salomon <esalomon@mellanox.com>
Adding new function to call getcpu directly

Change-Id: Ic67a42e3f2e3436bc0b93fa2974db2a0b6995391
Signed-off-by: Eyal Salomon <esalomon@mellanox.com>