NFS: Implement support for NFS4ERR_LEASE_MOVED

Trigger lease-moved recovery when a request returns
NFS4ERR_LEASE_MOVED.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 01b90bd..2564e1c 100644 (file)
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -389,6 +389,9 @@ static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struc
                        if (ret < 0)
                                break;
                        goto wait_on_recovery;
+               case -NFS4ERR_LEASE_MOVED:
+                       nfs4_schedule_lease_moved_recovery(clp);
+                       goto wait_on_recovery;
 #if defined(CONFIG_NFS_V4_1)
                case -NFS4ERR_BADSESSION:
                case -NFS4ERR_BADSLOT:
@@ -1578,6 +1581,9 @@ static int nfs4_handle_delegation_recall_error(struct nfs_server *server, struct
                case -NFS4ERR_MOVED:
                        nfs4_schedule_migration_recovery(server);
                        return -EAGAIN;
+               case -NFS4ERR_LEASE_MOVED:
+                       nfs4_schedule_lease_moved_recovery(server->nfs_client);
+                       return -EAGAIN;
                case -NFS4ERR_DELEG_REVOKED:
                case -NFS4ERR_ADMIN_REVOKED:
                case -NFS4ERR_BAD_STATEID:
@@ -4758,6 +4764,9 @@ nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server,
                        if (nfs4_schedule_migration_recovery(server) < 0)
                                goto recovery_failed;
                        goto wait_on_recovery;
+               case -NFS4ERR_LEASE_MOVED:
+                       nfs4_schedule_lease_moved_recovery(clp);
+                       goto wait_on_recovery;
 #if defined(CONFIG_NFS_V4_1)
                case -NFS4ERR_BADSESSION:
                case -NFS4ERR_BADSLOT: