Merge tag 'nfs-for-3.7-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client updates from Trond Myklebust:
 "Features include:

   - Remove CONFIG_EXPERIMENTAL dependency from NFSv4.1
     Aside from the issues discussed at the LKS, distros are shipping
     NFSv4.1 with all the trimmings.
   - Fix fdatasync()/fsync() for the corner case of a server reboot.
   - NFSv4 OPEN access fix: finally distinguish correctly between
     open-for-read and open-for-execute permissions in all situations.
   - Ensure that the TCP socket is closed when we're in CLOSE_WAIT
   - More idmapper bugfixes
   - Lots of pNFS bugfixes and cleanups to remove unnecessary state and
     make the code easier to read.
   - In cases where a pNFS read or write fails, allow the client to
     resume trying layoutgets after two minutes of read/write-
     through-mds.
   - More net namespace fixes to the NFSv4 callback code.
   - More net namespace fixes to the NFSv3 locking code.
   - More NFSv4 migration preparatory patches.
     Including patches to detect network trunking in both NFSv4 and
     NFSv4.1
   - pNFS block updates to optimise LAYOUTGET calls."

* tag 'nfs-for-3.7-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (113 commits)
  pnfsblock: cleanup nfs4_blkdev_get
  NFS41: send real read size in layoutget
  NFS41: send real write size in layoutget
  NFS: track direct IO left bytes
  NFSv4.1: Cleanup ugliness in pnfs_layoutgets_blocked()
  NFSv4.1: Ensure that the layout sequence id stays 'close' to the current
  NFSv4.1: Deal with seqid wraparound in the pNFS return-on-close code
  NFSv4 set open access operation call flag in nfs4_init_opendata_res
  NFSv4.1: Remove the dependency on CONFIG_EXPERIMENTAL
  NFSv4 reduce attribute requests for open reclaim
  NFSv4: nfs4_open_done first must check that GETATTR decoded a file type
  NFSv4.1: Deal with wraparound when updating the layout "barrier" seqid
  NFSv4.1: Deal with wraparound issues when updating the layout stateid
  NFSv4.1: Always set the layout stateid if this is the first layoutget
  NFSv4.1: Fix another refcount issue in pnfs_find_alloc_layout
  NFSv4: don't put ACCESS in OPEN compound if O_EXCL
  NFSv4: don't check MAY_WRITE access bit in OPEN
  NFS: Set key construction data for the legacy upcall
  NFSv4.1: don't do two EXCHANGE_IDs on mount
  NFS: nfs41_walk_client_list(): re-lock before iterating
  ...

diff --cc Documentation/kernel-parameters.txt
Simple merge

diff --cc fs/nfs/file.c
Simple merge

diff --cc fs/nfs/inode.c
Simple merge

diff --cc fs/nfs/super.c
index d2c7f5db0847656bb0f2a9d109b5ad9fc8af5cbc,b4079bbd30ddaf439df94721d72767e11621f5cd..e831bce497663e809e48bb7cc278f5ad6a74ba7b
--- 1/fs/nfs/super.c
--- 2/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@@ -1535,9 -1547,13 +1547,13 @@@ static int nfs_parse_mount_options(cha
        if (mnt->minorversion && mnt->version != 4)
                goto out_minorversion_mismatch;
  
+       if (mnt->options & NFS_OPTION_MIGRATION &&
+           mnt->version != 4 && mnt->minorversion != 0)
+               goto out_migration_misuse;
+ 
        /*
         * verify that any proto=/mountproto= options match the address
 -       * familiies in the addr=/mountaddr= options.
 +       * families in the addr=/mountaddr= options.
         */
        if (protofamily != AF_UNSPEC &&
            protofamily != mnt->nfs_server.address.ss_family)