linux-toradex.git/include/linux/nfs4.h, branch v2.6.32.31

Merge branch 'for-2.6.32' of git://linux-nfs.org/~bfields/linux

2009-09-22T14:54:33+00:00

* 'for-2.6.32' of git://linux-nfs.org/~bfields/linux: (68 commits)
  nfsd4: nfsv4 clients should cross mountpoints
  nfsd: revise 4.1 status documentation
  sunrpc/cache: avoid variable over-loading in cache_defer_req
  sunrpc/cache: use list_del_init for the list_head entries in cache_deferred_req
  nfsd: return success for non-NFS4 nfs4_state_start
  nfsd41: Refactor create_client()
  nfsd41: modify nfsd4.1 backchannel to use new xprt class
  nfsd41: Backchannel: Implement cb_recall over NFSv4.1
  nfsd41: Backchannel: cb_sequence callback
  nfsd41: Backchannel: Setup sequence information
  nfsd41: Backchannel: Server backchannel RPC wait queue
  nfsd41: Backchannel: Add sequence arguments to callback RPC arguments
  nfsd41: Backchannel: callback infrastructure
  nfsd4: use common rpc_cred for all callbacks
  nfsd4: allow nfs4 state startup to fail
  SUNRPC: Defer the auth_gss upcall when the RPC call is asynchronous
  nfsd4: fix null dereference creating nfsv4 callback client
  nfsd4: fix whitespace in NFSPROC4_CLNT_CB_NULL definition
  nfsd41: sunrpc: add new xprt class for nfsv4.1 backchannel
  sunrpc/cache: simplify cache_fresh_locked and cache_fresh_unlocked.
  ...

NFS: Allow the "nfs" file system type to support NFSv4

2009-09-08T23:50:03+00:00

When mounting an "nfs" type file system, recognize "v4," "vers=4," or
"nfsvers=4" mount options, and convert the file system to "nfs4" under
the covers.

Signed-off-by: Chuck Lever 
[trondmy: fixed up binary mount code so it sets the 'version' field too]
Signed-off-by: Trond Myklebust

nfsd41: gather and report statistics also for v4.1 ops

2009-07-10T22:18:22+00:00

Signed-off-by: Benny Halevy 
Signed-off-by: J. Bruce Fields

nfs41: create_session operation

2009-06-17T19:24:34+00:00

Implement the create_session operation conforming to
http://tools.ietf.org/html/draft-ietf-nfsv4-minorversion1-26

Set the real fore channel max operations to preserve server resources.
Note: If the server returns < NFS4_MAX_OPS, the client will very soon
get an NFS4ERR_TOO_MANY_OPS. A later patch will handle this.

Set the max_rqst_sz and max_resp_sz to PAGE_SIZE - we preallocate the buffers.

Set the back channel max_resp_sz_cached to zero to force the client to
always set csa_cachethis to FALSE because the current implementation
of the back channel DRC only supports caching the CB_SEQUENCE operation.

The client back channel server supports one slot, and desires 2 operations
per compound.

Signed-off-by: Ricardo Labiaga 
Signed-off-by: Andy Adamson
Signed-off-by: Benny Halevy 
[nfs41: remove extraneous rpc_clnt pointer]
Use the struct nfs_client cl_rpcclient.
Signed-off-by: Andy Adamson 
Signed-off-by: Benny Halevy 
[nfs41: nfs4_init_channel_attrs, just use nfs41_create_session_args]
Signed-off-by: Andy Adamson 
Signed-off-by: Benny Halevy 
[nfs41: use rsize and wsize for session channel attributes]
Signed-off-by: Andy Adamson 
Signed-off-by: Benny Halevy 
[nfs41: set channel max operations]
Signed-off-by: Andy Adamson 
Signed-off-by: Benny Halevy 
[nfs41: set back channel attributes]
Signed-off-by: Andy Adamson 
Signed-off-by: Benny Halevy 
[nfs41: obliterate nfs4_adjust_channel_attrs]
Signed-off-by: Andy Adamson 
Signed-off-by: Benny Halevy 
[nfs41: have create_session work on nfs_client]
Signed-off-by: Benny Halevy 
[nfs41: move CONFIG_NFS_V4_1 endif]
Signed-off-by: Andy Adamson 
Signed-off-by: Benny Halevy 
[nfs41: pass *session in seq_args and seq_res]
[moved nfs4_init_slot_table definition here]
Signed-off-by: Benny Halevy 
[nfs41: use kcalloc to allocate slot table]
Signed-off-by: Benny Halevy 
Signed-off-by: Trond Myklebust 
[nfs41: fix Xcode_create_session's xdr Xcoding pointer type]
[nfs41: refactor decoding of channel attributes]
Signed-off-by: Benny Halevy

nfs41: exchange_id operation

2009-06-17T19:23:57+00:00

Implement the exchange_id operation conforming to
http://tools.ietf.org/html/draft-ietf-nfsv4-minorversion1-26

Unlike NFSv4.0, NFSv4.1 requires machine credentials. RPC_AUTH_GSS machine
credentials will be passed into the kernel at mount time to be available for
the exchange_id operation.

RPC_AUTH_UNIX root mounts can use the UNIX root credential. Store the root
credential in the nfs_client struct.

Without a credential, NFSv4.1 state renewal fails.

[nfs41: establish clientid via exchange id only if cred != NULL]
Signed-off-by: Andy Adamson
Signed-off-by: Benny Halevy 
[nfsd41: move nfstime4 from under CONFIG_NFS_V4_1]
Signed-off-by: Andy Adamson 
Signed-off-by: Benny Halevy 
[nfs41: do not wait a lease time in exchange id]
Signed-off-by: Andy Adamson 
Signed-off-by: Benny Halevy 
[nfs41: pass *session in seq_args and seq_res]
Signed-off-by: Benny Halevy 
Signed-off-by: Trond Myklebust 
[nfs41: Ignoring impid in decode_exchange_id is missing a READ_BUF]
Signed-off-by: Benny Halevy 
[nfs41: fix Xcode_exchange_id's xdr Xcoding pointer type]
[nfs41: get rid of unused struct nfs41_exchange_id_res members]
Signed-off-by: Benny Halevy

nfs41: define NFS4_MAX_MINOR_VERSION based on CONFIG_NFS_V4_1

2009-06-17T17:46:14+00:00

If 4.1 isn't supported, NFS4_MAX_MINOR_VERSION will be 0.

Signed-off-by: Mike Sager 
Signed-off-by: Benny Halevy 
Signed-off-by: Trond Myklebust

nfsd41: CREATE_EXCLUSIVE4_1

2009-04-04T00:41:23+00:00

Implement the CREATE_EXCLUSIVE4_1 open mode conforming to
http://tools.ietf.org/html/draft-ietf-nfsv4-minorversion1-26

This mode allows the client to atomically create a file
if it doesn't exist while setting some of its attributes.

It must be implemented if the server supports persistent
reply cache and/or pnfs.

Signed-off-by: Benny Halevy 
Signed-off-by: J. Bruce Fields

nfsd41: SUPPATTR_EXCLCREAT attribute

2009-04-04T00:41:23+00:00

Return bitmask for supported EXCLUSIVE4_1 create attributes.

Signed-off-by: Benny Halevy 
Signed-off-by: J. Bruce Fields

nfs41: common protocol definitions

2009-04-04T00:41:12+00:00

Define all NFSv4.1 common operation and error code constants.

Note that some of the definitions are used by both the nfs41 client
and the server code. This patch is duplicated in the nfs41 and nfsd41
sessions patchset.

Signed-off-by: Andy Adamson
Signed-off-by: Benny Halevy 
[nfs41: add exchange id flags]
Signed-off-by: Mike Sager 
Signed-off-by: Benny Halevy 
[removed server-only hunk changing NFSERR_REPLAY_ME]
Signed-off-by: Benny Halevy 
[nfs41: add SEQ4_XX to nfs41-common-protocol]
Signed-off-by: Andy Adamson 
Signed-off-by: Benny Halevy 
[nfs41: generic error code update]
[nfs41: reverse EXCHGID4_INVAL_FLAG_MASK_{A,R}]
Signed-off-by: Benny Halevy 
Signed-off-by: J. Bruce Fields

nfsd: last_byte_offset

2009-01-07T22:38:31+00:00

refactor the nfs4 server lock code to use last_byte_offset
to compute the last byte covered by the lock.  Check for overflow
so that the last byte is set to NFS4_MAX_UINT64 if offset + len
wraps around.

Also, use NFS4_MAX_UINT64 for ~(u64)0 where appropriate.

Signed-off-by: Benny Halevy 
Signed-off-by: J. Bruce Fields