linux-toradex.git/include/linux/sunrpc/svc.h, branch v2.6.34.4

nfsd: remove unused field rq_reffh

2009-12-15T20:01:46+00:00

This field is never referenced anywhere else.  I don't know what it was
intended for.

Signed-off-by: J. Bruce Fields

Revert "knfsd: avoid overloading the CPU scheduler with enormous load averages"

2009-11-23T17:34:05+00:00

This reverts commit 59a252ff8c0f2fa32c896f69d56ae33e641ce7ad.

This helps in an entirely cached workload but not necessarily in
workloads that require waiting on disk.

Conflicts:

	include/linux/sunrpc/svc.h
	net/sunrpc/svc_xprt.c

Reported-by: Simon Kirby 
Tested-by: Jesper Krogh 
Signed-off-by: J. Bruce Fields

nfsd41: use globals for DRC limits

2009-07-14T21:52:40+00:00

The version 4.1 DRC memory limit and tracking variables are server wide and
session specific. Replace struct svc_serv fields with globals.
Stop using the svc_serv sv_lock.

Add a spinlock to serialize access to the DRC limit management variables which
change on session creation and deletion (usage counter) or (future)
administrative action to adjust the total DRC memory limit.

Signed-off-by: Andy Adamson 
Signed-off-by: Benny Halevy

nfs41: sunrpc: add a struct svc_xprt pointer to struct svc_serv for backchannel use

2009-06-17T21:11:31+00:00

This svc_xprt is passed on to the callback service thread to be later used
to processes incoming svc_rqst's

Signed-off-by: Benny Halevy

nfs41: Backchannel bc_svc_process()

2009-06-17T21:11:29+00:00

Implement the NFSv4.1 backchannel service.  Invokes the common callback
processing logic svc_process_common() to authenticate the call and
dispatch the appropriate NFSv4.1 XDR decoder and operation procedure.
It then invokes bc_send() to send the reply over the same connection.
bc_send() is implemented in a separate patch.

At this time there is no slot validation or reply cache handling.

[nfs41: Preallocate rpc_rqst receive buffer for handling callbacks]
Signed-off-by: Ricardo Labiaga 
Signed-off-by: Benny Halevy 
[Move bc_svc_process() declaration to correct patch]
Signed-off-by: Ricardo Labiaga 
Signed-off-by: Benny Halevy

nfs41: client callback structures

2009-06-17T20:06:13+00:00

Adds new list of rpc_xprt structures, and a readers/writers lock to
protect the list.  The list is used to preallocate resources for
the backchannel during backchannel requests.  Callbacks are not
expected to cause significant latency, so only one callback will
be allowed at this time.

It also adds a pointer to the NFS callback service so that
requests can be directed to it for processing.

New callback members added to svc_serv. The NFSv4.1 callback service will
sleep on the svc_serv->svc_cb_waitq until new callback requests arrive.
The request will be queued in svc_serv->svc_cb_list. This patch adds this
list, the sleep queue and spinlock to svc_serv.

[nfs41: NFSv4.1 callback support]
Signed-off-by: Ricardo Labiaga 
Signed-off-by: Benny Halevy

Merge branch 'for-2.6.30' of git://linux-nfs.org/~bfields/linux

2009-04-06T20:25:56+00:00

* 'for-2.6.30' of git://linux-nfs.org/~bfields/linux: (81 commits)
  nfsd41: define nfsd4_set_statp as noop for !CONFIG_NFSD_V4
  nfsd41: define NFSD_DRC_SIZE_SHIFT in set_max_drc
  nfsd41: Documentation/filesystems/nfs41-server.txt
  nfsd41: CREATE_EXCLUSIVE4_1
  nfsd41: SUPPATTR_EXCLCREAT attribute
  nfsd41: support for 3-word long attribute bitmask
  nfsd: dynamically skip encoded fattr bitmap in _nfsd4_verify
  nfsd41: pass writable attrs mask to nfsd4_decode_fattr
  nfsd41: provide support for minor version 1 at rpc level
  nfsd41: control nfsv4.1 svc via /proc/fs/nfsd/versions
  nfsd41: add OPEN4_SHARE_ACCESS_WANT nfs4_stateid bmap
  nfsd41: access_valid
  nfsd41: clientid handling
  nfsd41: check encode size for sessions maxresponse cached
  nfsd41: stateid handling
  nfsd: pass nfsd4_compound_state* to nfs4_preprocess_{state,seq}id_op
  nfsd41: destroy_session operation
  nfsd41: non-page DRC for solo sequence responses
  nfsd41: Add a create session replay cache
  nfsd41: create_session operation
  ...

nfsd41: hard page limit for DRC

2009-04-04T00:41:17+00:00

Use no more than 1/128th of the number of free pages at nfsd startup for the
v4.1 DRC.

This is an arbitrary default which should probably end up under the control
of an administrator.

Signed-off-by: Andy Adamson 
[moved added fields in struct svc_serv under CONFIG_NFSD_V4_1]
Signed-off-by: Benny Halevy 
[fix set_max_drc calculation of sv_drc_max_pages]
[moved NFSD_DRC_SIZE_SHIFT's declaration up in header file]
Signed-off-by: Benny Halevy 
Signed-off-by: J. Bruce Fields

nfsd: don't use the deferral service, return NFS4ERR_DELAY

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

On an NFSv4.1 server cache miss that causes an upcall, NFS4ERR_DELAY will be
returned. It is up to the NFSv4.1 client to resend only the operations that
have not been processed.

Initialize rq_usedeferral to 1 in svc_process(). It sill be turned off in
nfsd4_proc_compound() only when NFSv4.1 Sessions are used.

Note: this isn't an adequate solution on its own. It's acceptable as a way
to get some minimal 4.1 up and working, but we're going to have to find a
way to avoid returning DELAY in all common cases before 4.1 can really be
considered ready.

Signed-off-by: Andy Adamson 
Signed-off-by: Benny Halevy 
[nfsd41: reverse rq_nodeferral negative logic]
Signed-off-by: Benny Halevy 
[sunrpc: initialize rq_usedeferral]
Signed-off-by: Andy Adamson 
Signed-off-by: Benny Halevy 
Signed-off-by: J. Bruce Fields

SUNRPC: Remove @family argument from svc_create() and svc_create_pooled()

2009-03-28T19:54:48+00:00

Since an RPC service listener's protocol family is specified now via
svc_create_xprt(), it no longer needs to be passed to svc_create() or
svc_create_pooled().  Remove that argument from the synopsis of those
functions, and remove the sv_family field from the svc_serv struct.

Signed-off-by: Chuck Lever 
Signed-off-by: Trond Myklebust