Merge git://git.linux-nfs.org/pub/linux/nfs-2.6

Merge git://git.linux-nfs.org/pub/linux/nfs-2.6

* git://git.linux-nfs.org/pub/linux/nfs-2.6: (74 commits)
  NFS: unmark NFS direct I/O as experimental
  NFS: add comments clarifying the use of nfs_post_op_update()
  NFSv4: rpc_mkpipe creating socket inodes w/out sk buffers
  NFS: Use SEEK_END instead of hardcoded value
  NFSv4: When mounting with a port=0 argument, substitute port=2049
  NFSv4: Poll more aggressively when handling NFS4ERR_DELAY
  NFSv4: Handle the condition NFS4ERR_FILE_OPEN
  NFSv4: Retry lease recovery if it failed during a synchronous operation.
  NFS: Don't invalidate the symlink we just stuffed into the cache
  NFS: Make read() return an ESTALE if the file has been deleted
  NFSv4: It's perfectly legal for clp to be NULL here....
  NFS: nfs_lookup - don't hash dentry when optimising away the lookup
  SUNRPC: Fix Oops in pmap_getport_done
  SUNRPC: Add refcounting to the struct rpc_xprt
  SUNRPC: Clean up soft task error handling
  SUNRPC: Handle ENETUNREACH, EHOSTUNREACH and EHOSTDOWN socket errors
  SUNRPC: rpc_delay() should not clobber the rpc_task->tk_status
  Fix a referral error Oops
  NFS: NFS_ROOT should use the new rpc_create API
  NFS: Fix up compiler warnings on 64-bit platforms in client.c
  ...

Manually resolved conflict in net/sunrpc/xprtsock.c