linux-toradex.git/net/sunrpc/sunrpc_syms.c, branch v3.2.2

SUNRPC: remove rpcbind clients destruction on module cleanup

2011-10-25T11:20:50+00:00

Rpcbind clients destruction during SUNRPC module removing is obsolete since now
those clients are destroying during last RPC service shutdown.

Signed-off-by: Stanislav Kinsbursky 
Signed-off-by: Trond Myklebust

sunrpc: Make the ip_map_cache be per-net

2010-09-27T14:16:12+00:00

Everything that is required for that already exists:
* the per-net cache registration with respective proc entries
* the context (struct net) is available in all the users

Signed-off-by: Pavel Emelyanov 
Signed-off-by: J. Bruce Fields

sunrpc: Make the /proc/net/rpc appear in net namespaces

2010-09-27T14:16:12+00:00

Signed-off-by: Pavel Emelyanov 
Signed-off-by: J. Bruce Fields

sunrpc: The per-net skeleton

2010-09-27T14:16:12+00:00

Register empty per-net operations for the sunrpc layer.

Signed-off-by: Pavel Emelyanov 
Signed-off-by: J. Bruce Fields

Merge branch 'for-2.6.36' of git://linux-nfs.org/~bfields/linux

2010-08-07T21:24:41+00:00

* 'for-2.6.36' of git://linux-nfs.org/~bfields/linux: (34 commits)
  nfsd4: fix file open accounting for RDWR opens
  nfsd: don't allow setting maxblksize after svc created
  nfsd: initialize nfsd versions before creating svc
  net: sunrpc: removed duplicated #include
  nfsd41: Fix a crash when a callback is retried
  nfsd: fix startup/shutdown order bug
  nfsd: minor nfsd read api cleanup
  gcc-4.6: nfsd: fix initialized but not read warnings
  nfsd4: share file descriptors between stateid's
  nfsd4: fix openmode checking on IO using lock stateid
  nfsd4: miscellaneous process_open2 cleanup
  nfsd4: don't pretend to support write delegations
  nfsd: bypass readahead cache when have struct file
  nfsd: minor nfsd_svc() cleanup
  nfsd: move more into nfsd_startup()
  nfsd: just keep single lockd reference for nfsd
  nfsd: clean up nfsd_create_serv error handling
  nfsd: fix error handling in __write_ports_addxprt
  nfsd: fix error handling when starting nfsd with rpcbind down
  nfsd4: fix v4 state shutdown error paths
  ...

NFS: Ensure the AUTH_UNIX credcache is allocated dynamically

2010-08-04T12:52:57+00:00

Signed-off-by: Trond Myklebust

sunrpc: make the cache cleaner workqueue deferrable

2010-07-06T16:27:48+00:00

This patch makes the cache_cleaner workqueue deferrable, to prevent
unnecessary system wake-ups, which is very important for embedded
battery-powered devices.

do_cache_clean() is called every 30 seconds at the moment, and often
makes the system wake up from its power-save sleep state. With this
change, when the workqueue uses a deferrable timer, the
do_cache_clean() invocation will be delayed and combined with the
closest "real" wake-up. This improves the power consumption situation.

Note, I tried to create a DECLARE_DELAYED_WORK_DEFERRABLE() helper
macro, similar to DECLARE_DELAYED_WORK(), but failed because of the
way the timer wheel core stores the deferrable flag (it is the
LSBit in the time->base pointer). My attempt to define a static
variable with this bit set ended up with the "initializer element is
not constant" error.

Thus, I have to use run-time initialization, so I created a new
cache_initialize() function which is called once when sunrpc is
being initialized.

Signed-off-by: Artem Bityutskiy 
Signed-off-by: J. Bruce Fields

SUNRPC: Use a cached RPC client and transport for rpcbind upcalls

2009-12-03T20:58:56+00:00

The kernel's rpcbind client creates and deletes an rpc_clnt and its
underlying transport socket for every upcall to the local rpcbind
daemon.

When starting a typical NFS server on IPv4 and IPv6, the NFS service
itself does three upcalls (one per version) times two upcalls (one
per transport) times two upcalls (one per address family), making 12,
plus another one for the initial call to unregister previous NFS
services.  Starting the NLM service adds an additional 13 upcalls,
for similar reasons.

(Currently the NFS service doesn't start IPv6 listeners, but it will
soon enough).

Instead, let's create an rpc_clnt for rpcbind upcalls during the
first local rpcbind query, and cache it.  This saves the overhead of
creating and destroying an rpc_clnt and a socket for every upcall.

The new logic also prevents the kernel from attempting an RPCB_SET or
RPCB_UNSET if it knows from the start that the local portmapper does
not support rpcbind protocol version 4.  This will cut down on the
number of rpcbind upcalls in legacy environments.

Signed-off-by: Chuck Lever

SUNRPC: Ensure that sunrpc gets initialised before nfs, lockd, etc...

2009-08-21T12:17:56+00:00

We can oops if rpc_pipefs isn't properly initialised before we start to set
up objects that depend upon it.

Signed-off-by: Trond Myklebust

sunrpc: Use rcu_barrier() on unload.

2009-06-26T20:51:34+00:00

The sunrpc module uses rcu_call() thus it should use rcu_barrier() on
module unload.

Have not verified that the possibility for new call_rcu() callbacks
has been disabled.  As a hint for checking, the functions calling
call_rcu() (unx_destroy_cred and generic_destroy_cred) are
registered as crdestroy function pointer in struct rpc_credops.

Acked-by: Paul E. McKenney 
Acked-by: Trond Myklebust 
Signed-off-by: Jesper Dangaard Brouer 
Signed-off-by: David S. Miller