Branch next Tag:V6-dev.4 NOTE: This merge includes an ntirpc pullup, make sure to update your submodule. Merge Highlights * Improve session handling including back channels Signed-off-by: Frank S. Filz <ffilzlnx@mindspring.com> Contents: 20fd703bb Frank S. Filz V6-dev.4 c9677878f Dipit Grover nfs41_session: Replace connections array by a linked-list 4ee4a1ed5 Dipit Grover nfs_tcp_dispatch: Register callback to un-reference user-data during xprt destroy db731888d Dipit Grover xprt_handler: Add function to un-reference xprt client-data 2111931d0 Dipit Grover nfs41_session: Add function to destroy the session backchannel for a xprt 355dc6bf7 Dipit Grover nfs41_session: Add function to remove a xprt from the session 4c22e07b5 Dipit Grover svc_xprt: Maintain mapping between nfs41_session and connection 857d81606 Dipit Grover nfs41_session: Update nfs41_Session_Del function to accept session 4e46d8f38 Dipit Grover bind_conn_to_session: Validate check/add connection to session output e7bb9affd Dipit Grover destroy-channel: Expose function that does not lock channel 417dd296b Dipit Grover logging-component: Add new COMPONENT_XPRT and remove unused COMPONENT_RPC 4e644b45f Dipit Grover bind_conn_to_session: Fix backchannel implementation b263e06c0 Dipit Grover gsh_rpc: Add method to display xprt's socket-address 75d60d8aa Dipit Grover libntirpc: Update submodule b853d6d9b Dipit Grover nfs41_session: Store security params for backchannel creation 4d048f9b7 Dipit Grover nfs_client_id: Store state protection mechanism for the client