linux.git/include/linux/sunrpc, branch v3.14

Merge branch 'for-3.14' of git://linux-nfs.org/~bfields/linux

2014-01-30T18:18:43+00:00

Pull nfsd updates from Bruce Fields:
 - Handle some loose ends from the vfs read delegation support.
   (For example nfsd can stop breaking leases on its own in a
    fewer places where it can now depend on the vfs to.)
 - Make life a little easier for NFSv4-only configurations
   (thanks to Kinglong Mee).
 - Fix some gss-proxy problems (thanks Jeff Layton).
 - miscellaneous bug fixes and cleanup

* 'for-3.14' of git://linux-nfs.org/~bfields/linux: (38 commits)
  nfsd: consider CLAIM_FH when handing out delegation
  nfsd4: fix delegation-unlink/rename race
  nfsd4: delay setting current_fh in open
  nfsd4: minor nfs4_setlease cleanup
  gss_krb5: use lcm from kernel lib
  nfsd4: decrease nfsd4_encode_fattr stack usage
  nfsd: fix encode_entryplus_baggage stack usage
  nfsd4: simplify xdr encoding of nfsv4 names
  nfsd4: encode_rdattr_error cleanup
  nfsd4: nfsd4_encode_fattr cleanup
  minor svcauth_gss.c cleanup
  nfsd4: better VERIFY comment
  nfsd4: break only delegations when appropriate
  NFSD: Fix a memory leak in nfsd4_create_session
  sunrpc: get rid of use_gssp_lock
  sunrpc: fix potential race between setting use_gss_proxy and the upcall rpc_clnt
  sunrpc: don't wait for write before allowing reads from use-gss-proxy file
  nfsd: get rid of unused function definition
  Define op_iattr for nfsd4_open instead using macro
  NFSD: fix compile warning without CONFIG_NFSD_V3
  ...

SUNRPC/NFSD: Support a new option for ignoring the result of svc_register

2014-01-03T23:18:49+00:00

NFSv4 clients can contact port 2049 directly instead of needing the
portmapper.

Therefore a failure to register to the portmapper when starting an
NFSv4-only server isn't really a problem.

But Gareth Williams reports that an attempt to start an NFSv4-only
server without starting portmap fails:

  #rpc.nfsd -N 2 -N 3
  rpc.nfsd: writing fd to kernel failed: errno 111 (Connection refused)
  rpc.nfsd: unable to set any sockets for nfsd

Add a flag to svc_version to tell the rpc layer it can safely ignore an
rpcbind failure in the NFSv4-only case.

Reported-by: Gareth Williams 
Reviewed-by: Chuck Lever 
Signed-off-by: Kinglong Mee 
Signed-off-by: J. Bruce Fields

sunrpc: fix some typos

2013-12-11T01:37:48+00:00

Signed-off-by: Weng Meiling 
Signed-off-by: J. Bruce Fields

sunrpc: replace sunrpc_net->gssd_running flag with a more reliable check

2013-12-06T18:06:31+00:00

Now that we have a more reliable method to tell if gssd is running, we
can replace the sn->gssd_running flag with a function that will query to
see if it's up and running.

There's also no need to attempt an upcall that we know will fail, so
just return -EACCES if gssd isn't running. Finally, fix the warn_gss()
message not to claim that that the upcall timed out since we don't
necesarily perform one now when gssd isn't running, and remove the
extraneous newline from the message.

Signed-off-by: Jeff Layton 
Signed-off-by: Trond Myklebust

sunrpc: create a new dummy pipe for gssd to hold open

2013-12-06T18:06:30+00:00

rpc.gssd will naturally hold open any pipe named */clnt*/gssd that shows
up under rpc_pipefs. That behavior gives us a reliable mechanism to tell
whether it's actually running or not.

Create a new toplevel "gssd" directory in rpc_pipefs when it's mounted.
Under that directory create another directory called "clntXX", and then
within that a pipe called "gssd".

We'll never send an upcall along that pipe, and any downcall written to
it will just return -EINVAL.

Signed-off-by: Jeff Layton 
Signed-off-by: Trond Myklebust

SUNRPC: Add a helper to switch the transport of an rpc_clnt

2013-10-28T19:21:32+00:00

Add an RPC client API to redirect an rpc_clnt's transport from a
source server to a destination server during a migration event.

Signed-off-by: Trond Myklebust 
[ cel: forward ported to 3.12 ]
Signed-off-by: Chuck Lever 
Signed-off-by: Trond Myklebust

SUNRPC: Add RPC task and client level options to disable the resend timeout

2013-10-01T22:22:11+00:00

Signed-off-by: Trond Myklebust

SUNRPC: Clean up - convert xprt_prepare_transmit to return a bool

2013-10-01T22:22:11+00:00

Signed-off-by: Trond Myklebust

Merge branch 'nfsd-next' of git://linux-nfs.org/~bfields/linux

2013-09-11T03:04:59+00:00

Pull nfsd updates from Bruce Fields:
 "This was a very quiet cycle! Just a few bugfixes and some cleanup"

* 'nfsd-next' of git://linux-nfs.org/~bfields/linux:
  rpc: let xdr layer allocate gssproxy receieve pages
  rpc: fix huge kmalloc's in gss-proxy
  rpc: comment on linux_cred encoding, treat all as unsigned
  rpc: clean up decoding of gssproxy linux creds
  svcrpc: remove unused rq_resused
  nfsd4: nfsd4_create_clid_dir prints uninitialized data
  nfsd4: fix leak of inode reference on delegation failure
  Revert "nfsd: nfs4_file_get_access: need to be more careful with O_RDWR"
  sunrpc: prepare NFS for 2038
  nfsd4: fix setlease error return
  nfsd: nfs4_file_get_access: need to be more careful with O_RDWR

Merge tag 'nfs-for-3.12-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs

2013-09-09T16:19:15+00:00

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

- Fix NFSv4 recovery so that it doesn't recover lost locks in cases
such as lease loss due to a network partition, where doing so may
result in data corruption. Add a kernel parameter to control
choice of legacy behaviour or not.
- Performance improvements when 2 processes are writing to the same
file.
- Flush data to disk when an RPCSEC_GSS session timeout is imminent.
- Implement NFSv4.1 SP4_MACH_CRED state protection to prevent other
NFS clients from being able to manipulate our lease and file
locking state.
- Allow sharing of RPCSEC_GSS caches between different rpc clients.
- Fix the broken NFSv4 security auto-negotiation between client and
server.
- Fix rmdir() to wait for outstanding sillyrename unlinks to complete
- Add a tracepoint framework for debugging NFSv4 state recovery
issues.
- Add tracing to the generic NFS layer.
- Add tracing for the SUNRPC socket connection state.
- Clean up the rpc_pipefs mount/umount event management.
- Merge more patches from Chuck in preparation for NFSv4 migration
support"

* tag 'nfs-for-3.12-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (107 commits)
NFSv4: use mach cred for SECINFO_NO_NAME w/ integrity
NFS: nfs_compare_super shouldn't check the auth flavour unless 'sec=' was set
NFSv4: Allow security autonegotiation for submounts
NFSv4: Disallow security negotiation for lookups when 'sec=' is specified
NFSv4: Fix security auto-negotiation
NFS: Clean up nfs_parse_security_flavors()
NFS: Clean up the auth flavour array mess
NFSv4.1 Use MDS auth flavor for data server connection
NFS: Don't check lock owner compatability unless file is locked (part 2)
NFS: Don't check lock owner compatibility in writes unless file is locked
nfs4: Map NFS4ERR_WRONG_CRED to EPERM
nfs4.1: Add SP4_MACH_CRED write and commit support
nfs4.1: Add SP4_MACH_CRED stateid support
nfs4.1: Add SP4_MACH_CRED secinfo support
nfs4.1: Add SP4_MACH_CRED cleanup support
nfs4.1: Add state protection handler
nfs4.1: Minimal SP4_MACH_CRED implementation
SUNRPC: Replace pointer values with task->tk_pid and rpc_clnt->cl_clid
SUNRPC: Add an identifier for struct rpc_clnt
SUNRPC: Ensure rpc_task->tk_pid is available for tracepoints
...