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authorChuck Lever <chuck.lever@oracle.com>2013-10-17 14:12:28 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2013-10-28 15:22:29 -0400
commit32e62b7c3ef095eccbb6a8c96fddf05dacc749df (patch)
tree53b2abd3c507a3194fc76dd638e77202bacbb04d /fs/nfs/internal.h
parent40b00b6b17c412ff9ff28631250d32ee29ff0006 (diff)
downloadop-kernel-dev-32e62b7c3ef095eccbb6a8c96fddf05dacc749df.zip
op-kernel-dev-32e62b7c3ef095eccbb6a8c96fddf05dacc749df.tar.gz
NFS: Add nfs4_update_server
New function nfs4_update_server() moves an nfs_server to a different nfs_client. This is done as part of migration recovery. Though it may be appealing to think of them as the same thing, migration recovery is not the same as following a referral. For a referral, the client has not descended into the file system yet: it has no nfs_server, no super block, no inodes or open state. It is enough to simply instantiate the nfs_server and super block, and perform a referral mount. For a migration, however, we have all of those things already, and they have to be moved to a different nfs_client. No local namespace changes are needed here. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/internal.h')
-rw-r--r--fs/nfs/internal.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 38da8c2..e5a6bd1 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -154,6 +154,7 @@ struct nfs_client *nfs_get_client(const struct nfs_client_initdata *,
rpc_authflavor_t);
int nfs_probe_fsinfo(struct nfs_server *server, struct nfs_fh *, struct nfs_fattr *);
void nfs_server_insert_lists(struct nfs_server *);
+void nfs_server_remove_lists(struct nfs_server *);
void nfs_init_timeout_values(struct rpc_timeout *, int, unsigned int, unsigned int);
int nfs_init_server_rpcclient(struct nfs_server *, const struct rpc_timeout *t,
rpc_authflavor_t);
@@ -174,6 +175,8 @@ extern struct nfs_server *nfs4_create_server(
struct nfs_subversion *);
extern struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *,
struct nfs_fh *);
+extern int nfs4_update_server(struct nfs_server *server, const char *hostname,
+ struct sockaddr *sap, size_t salen);
extern void nfs_free_server(struct nfs_server *server);
extern struct nfs_server *nfs_clone_server(struct nfs_server *,
struct nfs_fh *,
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