Hi-
Here is the latest pass at client-side support for NFS4.0 migration.
Some 4.1 support is thrown in, but is not tested (no extant 4.1
servers in the wild support migration). Patches are against
2.6.39-rc6.
This series adds support for both NFS4ERR_MOVED and
NFS4ERR_LEASE_MOVED. It can also re-establish a callback channel
with the destination server, post-migration. I've attempted to
address all comments and re-organization requests from pub night.
This series is what I am testing this week. I'm sure there are still
some bugs, but let's get the review process rolling.
---
Chuck Lever (12):
NFS: Implement support for NFS4ERR_LEASE_MOVED
NFS: Add migration recovery callouts in nfs4proc.c
NFS: Remove "const" from "struct nfs_server *" fields
NFS: Add basic migration support to state manager thread
NFS: Add functions to swap transports during migration recovery
NFS: Add an API for cloning an nfs_client
NFS: Add infrastructure for updating callback data
NFS: Introduce nfs4_proc_get_mig_status()
NFS: Introduce NFS_ATTR_FATTR_V4_LOCATIONS
NFS: Save root file handle in nfs_server
NFS: Add a client-side function to display file handles
SUNRPC: Add API to acquire source address
Trond Myklebust (4):
SUNRPC: Add a helper to switch the transport of the rpc_client
SUNRPC: Move clnt->cl_server into struct rpc_xprt
SUNRPC: Use RCU to dereference the rpc_clnt.cl_xprt field
SUNRPC: Allow temporary blocking of an rpc client
fs/nfs/callback.c | 3
fs/nfs/callback_proc.c | 9 -
fs/nfs/client.c | 88 +++++++-
fs/nfs/getroot.c | 5
fs/nfs/inode.c | 45 ++++
fs/nfs/internal.h | 6 +
fs/nfs/nfs4_fs.h | 8 +
fs/nfs/nfs4namespace.c | 202 ++++++++++++++++++
fs/nfs/nfs4proc.c | 218 +++++++++++++++++---
fs/nfs/nfs4state.c | 227 ++++++++++++++++++++-
fs/nfs/nfs4xdr.c | 50 +++--
fs/nfs/super.c | 5
include/linux/nfs_fs.h | 14 +
include/linux/nfs_fs_sb.h | 7 +
include/linux/nfs_xdr.h | 42 ++--
include/linux/sunrpc/clnt.h | 22 ++
include/linux/sunrpc/debug.h | 11 +
include/linux/sunrpc/xprt.h | 2
net/sunrpc/clnt.c | 461 +++++++++++++++++++++++++++++++++++++-----
net/sunrpc/rpc_pipe.c | 5
net/sunrpc/rpcb_clnt.c | 24 +-
net/sunrpc/stats.c | 6 -
net/sunrpc/xprt.c | 14 +
23 files changed, 1320 insertions(+), 154 deletions(-)
--
Chuck Lever
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