Merge tag 'nfs-for-3.5-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

Pull NFS client updates from Trond Myklebust:
 "New features include:
   - Rewrite the O_DIRECT code so that it can share the same coalescing
     and pNFS functionality as the page cache code.
   - Allow the server to provide hints as to when we should use pNFS,
     and when it is more efficient to read and write through the
     metadata server.
   - NFS cache consistency updates:
     * Use the ctime to emulate a change attribute for NFSv2/v3 so that
       all NFS versions can share the same cache management code.
     * New cache management code will only look at the change attribute
       and size attribute when deciding whether or not our cached data
       is still valid or not.
     * Don't request NFSv4 post-op attributes on writes in cases such as
       O_DIRECT, where we don't care about data cache consistency, or
       when we have a write delegation, and know that our cache is still
       consistent.
     * Don't request NFSv4 post-op attributes on operations such as
       COMMIT, where there are no expected metadata updates.
     * Don't request NFSv4 directory post-op attributes in cases where
       the operations themselves already return change attribute
       updates: i.e. operations such as OPEN, CREATE, REMOVE, LINK and
       RENAME.
   - Speed up 'ls' and friends by using READDIR rather than READDIRPLUS
     if we detect no attempts to lookup filenames.
   - Improve the code sharing between NFSv2/v3 and v4 mounts
   - NFSv4.1 state management efficiency improvements
   - More patches in preparation for NFSv4/v4.1 migration functionality."

Fix trivial conflict in fs/nfs/nfs4proc.c that was due to the dcache
qstr name initialization changes (that made the length/hash a 64-bit
union)

* tag 'nfs-for-3.5-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (146 commits)
  NFSv4: Add debugging printks to state manager
  NFSv4: Map NFS4ERR_SHARE_DENIED into an EACCES error instead of EIO
  NFSv4: update_changeattr does not need to set NFS_INO_REVAL_PAGECACHE
  NFSv4.1: nfs4_reset_session should use nfs4_handle_reclaim_lease_error
  NFSv4.1: Handle other occurrences of NFS4ERR_CONN_NOT_BOUND_TO_SESSION
  NFSv4.1: Handle NFS4ERR_CONN_NOT_BOUND_TO_SESSION in the state manager
  NFSv4.1: Handle errors in nfs4_bind_conn_to_session
  NFSv4.1: nfs4_bind_conn_to_session should drain the session
  NFSv4.1: Don't clobber the seqid if exchange_id returns a confirmed clientid
  NFSv4.1: Add DESTROY_CLIENTID
  NFSv4.1: Ensure we use the correct credentials for bind_conn_to_session
  NFSv4.1: Ensure we use the correct credentials for session create/destroy
  NFSv4.1: Move NFSPROC4_CLNT_BIND_CONN_TO_SESSION to the end of the operations
  NFSv4.1: Handle NFS4ERR_SEQ_MISORDERED when confirming the lease
  NFSv4: When purging the lease, we must clear NFS4CLNT_LEASE_CONFIRM
  NFSv4: Clean up the error handling for nfs4_reclaim_lease
  NFSv4.1: Exchange ID must use GFP_NOFS allocation mode
  nfs41: Use BIND_CONN_TO_SESSION for CB_PATH_DOWN*
  nfs4.1: add BIND_CONN_TO_SESSION operation
  NFSv4.1 test the mdsthreshold hint parameters
  ...

diff --cc fs/nfs/dir.c
index eedd24d,d0884c0..0989a20
--- 1/fs/nfs/dir.c
--- 2/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@@ -475,9 -475,35 +475,32 @@@ different
  }
  
  static
+ bool nfs_use_readdirplus(struct inode *dir, struct file *filp)
+ {
+       if (!nfs_server_capable(dir, NFS_CAP_READDIRPLUS))
+               return false;
+       if (test_and_clear_bit(NFS_INO_ADVISE_RDPLUS, &NFS_I(dir)->flags))
+               return true;
+       if (filp->f_pos == 0)
+               return true;
+       return false;
+ }
+ 
+ /*
+  * This function is called by the lookup code to request the use of
+  * readdirplus to accelerate any future lookups in the same
+  * directory.
+  */
+ static
+ void nfs_advise_use_readdirplus(struct inode *dir)
+ {
+       set_bit(NFS_INO_ADVISE_RDPLUS, &NFS_I(dir)->flags);
+ }
+ 
+ static
  void nfs_prime_dcache(struct dentry *parent, struct nfs_entry *entry)
  {
 -      struct qstr filename = {
 -              .len = entry->len,
 -              .name = entry->name,
 -      };
 +      struct qstr filename = QSTR_INIT(entry->name, entry->len);
        struct dentry *dentry;
        struct dentry *alias;
        struct inode *dir = parent->d_inode;

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

diff --cc fs/nfs/nfs3proc.c
Simple merge

diff --cc fs/nfs/nfs4proc.c
index ab985f6,42d9e9c..d48dbef
--- 1/fs/nfs/nfs4proc.c
--- 2/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@@ -2782,8 -2830,8 +2830,7 @@@ static int _nfs4_proc_remove(struct ino
        struct nfs_server *server = NFS_SERVER(dir);
        struct nfs_removeargs args = {
                .fh = NFS_FH(dir),
 -              .name.len = name->len,
 -              .name.name = name->name,
 +              .name = *name,
-               .bitmask = server->attr_bitmask,
        };
        struct nfs_removeres res = {
                .server = server,

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

diff --cc net/sunrpc/clnt.c
Simple merge

diff --cc net/sunrpc/rpc_pipe.c
Simple merge

diff --cc net/sunrpc/xprt.c
Simple merge