NFS client bugfixes for Linux 3.5 Fixes include: - Fix a write hang due to an uninitalised variable when !defined(CONFIG_NFS_V4) - Address upcall races in the legacy NFSv4 idmapper - Remove an O_DIRECT refcounting issue - Fix a pNFS refcounting bug when the file layout metadata server is also acting as a data server - Fix a pNFS module loading race.