nfs4_wait_clnt_recover
err = nfs4_wait_clnt_recover(server->nfs_client);
nfs4_wait_clnt_recover(clp);
extern int nfs4_wait_clnt_recover(struct nfs_client *clp);
ret = nfs4_wait_clnt_recover(clp);
ret = nfs4_wait_clnt_recover(clp);