Pull NFS client bugfixes:
- Stable fix for data corruption when retransmitting O_DIRECT writes
- Stable fix for a deep recursion/stack overflow bug in rpc_release_client
- Stable fix for infinite looping when mounting a NFSv4.x volume
- Fix a typo in the nfs mount option parser
- Allow pNFS layouts to be compiled into the kernel when NFSv4.1 is
* tag 'nfs-for-3.13-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs:
nfs: fix pnfs Kconfig defaults
NFS: correctly report misuse of "migration" mount option.
nfs: don't retry detect_trunking with RPC_AUTH_UNIX more than once
SUNRPC: Avoid deep recursion in rpc_release_client
SUNRPC: Fix a data corruption issue when retransmitting RPC calls