1 files changed, 122 insertions, 67 deletions

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 6418cb6c079b..1406858bae6c 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -428,6 +428,22 @@ static int nfs4_delay(long *timeout, bool interruptible)
 	return nfs4_delay_killable(timeout);
 }
 
+static const nfs4_stateid *
+nfs4_recoverable_stateid(const nfs4_stateid *stateid)
+{
+	if (!stateid)
+		return NULL;
+	switch (stateid->type) {
+	case NFS4_OPEN_STATEID_TYPE:
+	case NFS4_LOCK_STATEID_TYPE:
+	case NFS4_DELEGATION_STATEID_TYPE:
+		return stateid;
+	default:
+		break;
+	}
+	return NULL;
+}
+
 /* This is the error handling routine for processes that are allowed
  * to sleep.
  */
@@ -436,7 +452,7 @@ static int nfs4_do_handle_exception(struct nfs_server *server,
 {
 	struct nfs_client *clp = server->nfs_client;
 	struct nfs4_state *state = exception->state;
-	const nfs4_stateid *stateid = exception->stateid;
+	const nfs4_stateid *stateid;
 	struct inode *inode = exception->inode;
 	int ret = errorcode;
 
@@ -444,8 +460,9 @@ static int nfs4_do_handle_exception(struct nfs_server *server,
 	exception->recovering = 0;
 	exception->retry = 0;
 
+	stateid = nfs4_recoverable_stateid(exception->stateid);
 	if (stateid == NULL && state != NULL)
-		stateid = &state->stateid;
+		stateid = nfs4_recoverable_stateid(&state->stateid);
 
 	switch(errorcode) {
 		case 0:
@@ -1165,6 +1182,18 @@ static bool nfs4_clear_cap_atomic_open_v1(struct nfs_server *server,
 	return true;
 }
 
+static fmode_t _nfs4_ctx_to_accessmode(const struct nfs_open_context *ctx)
+{
+	 return ctx->mode & (FMODE_READ|FMODE_WRITE|FMODE_EXEC);
+}
+
+static fmode_t _nfs4_ctx_to_openmode(const struct nfs_open_context *ctx)
+{
+	fmode_t ret = ctx->mode & (FMODE_READ|FMODE_WRITE);
+
+	return (ctx->mode & FMODE_EXEC) ? FMODE_READ | ret : ret;
+}
+
 static u32
 nfs4_map_atomic_open_share(struct nfs_server *server,
 		fmode_t fmode, int openflags)
@@ -1654,6 +1683,14 @@ static void nfs_state_set_open_stateid(struct nfs4_state *state,
 	write_sequnlock(&state->seqlock);
 }
 
+static void nfs_state_clear_open_state_flags(struct nfs4_state *state)
+{
+	clear_bit(NFS_O_RDWR_STATE, &state->flags);
+	clear_bit(NFS_O_WRONLY_STATE, &state->flags);
+	clear_bit(NFS_O_RDONLY_STATE, &state->flags);
+	clear_bit(NFS_OPEN_STATE, &state->flags);
+}
+
 static void nfs_state_set_delegation(struct nfs4_state *state,
 		const nfs4_stateid *deleg_stateid,
 		fmode_t fmode)
@@ -1878,8 +1915,9 @@ _nfs4_opendata_reclaim_to_nfs4_state(struct nfs4_opendata *data)
 	if (data->o_res.delegation_type != 0)
 		nfs4_opendata_check_deleg(data, state);
 update:
-	update_open_stateid(state, &data->o_res.stateid, NULL,
-			    data->o_arg.fmode);
+	if (!update_open_stateid(state, &data->o_res.stateid,
+				NULL, data->o_arg.fmode))
+		return ERR_PTR(-EAGAIN);
 	refcount_inc(&state->count);
 
 	return state;
@@ -1944,8 +1982,11 @@ _nfs4_opendata_to_nfs4_state(struct nfs4_opendata *data)
 
 	if (data->o_res.delegation_type != 0)
 		nfs4_opendata_check_deleg(data, state);
-	update_open_stateid(state, &data->o_res.stateid, NULL,
-			data->o_arg.fmode);
+	if (!update_open_stateid(state, &data->o_res.stateid,
+				NULL, data->o_arg.fmode)) {
+		nfs4_put_open_state(state);
+		state = ERR_PTR(-EAGAIN);
+	}
 out:
 	nfs_release_seqid(data->o_arg.seqid);
 	return state;
@@ -2045,13 +2086,7 @@ static int nfs4_open_recover(struct nfs4_opendata *opendata, struct nfs4_state *
 {
 	int ret;
 
-	/* Don't trigger recovery in nfs_test_and_clear_all_open_stateid */
-	clear_bit(NFS_O_RDWR_STATE, &state->flags);
-	clear_bit(NFS_O_WRONLY_STATE, &state->flags);
-	clear_bit(NFS_O_RDONLY_STATE, &state->flags);
 	/* memory barrier prior to reading state->n_* */
-	clear_bit(NFS_DELEGATED_STATE, &state->flags);
-	clear_bit(NFS_OPEN_STATE, &state->flags);
 	smp_rmb();
 	ret = nfs4_open_recover_helper(opendata, FMODE_READ|FMODE_WRITE);
 	if (ret != 0)
@@ -2127,6 +2162,8 @@ static int nfs4_open_reclaim(struct nfs4_state_owner *sp, struct nfs4_state *sta
 	ctx = nfs4_state_find_open_context(state);
 	if (IS_ERR(ctx))
 		return -EAGAIN;
+	clear_bit(NFS_DELEGATED_STATE, &state->flags);
+	nfs_state_clear_open_state_flags(state);
 	ret = nfs4_do_open_reclaim(ctx, state);
 	put_nfs_open_context(ctx);
 	return ret;
@@ -2142,18 +2179,17 @@ static int nfs4_handle_delegation_recall_error(struct nfs_server *server, struct
 		case -ENOENT:
 		case -EAGAIN:
 		case -ESTALE:
+		case -ETIMEDOUT:
 			break;
 		case -NFS4ERR_BADSESSION:
 		case -NFS4ERR_BADSLOT:
 		case -NFS4ERR_BAD_HIGH_SLOT:
 		case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
 		case -NFS4ERR_DEADSESSION:
-			set_bit(NFS_DELEGATED_STATE, &state->flags);
 			nfs4_schedule_session_recovery(server->nfs_client->cl_session, err);
 			return -EAGAIN;
 		case -NFS4ERR_STALE_CLIENTID:
 		case -NFS4ERR_STALE_STATEID:
-			set_bit(NFS_DELEGATED_STATE, &state->flags);
 			/* Don't recall a delegation if it was lost */
 			nfs4_schedule_lease_recovery(server->nfs_client);
 			return -EAGAIN;
@@ -2174,7 +2210,6 @@ static int nfs4_handle_delegation_recall_error(struct nfs_server *server, struct
 			return -EAGAIN;
 		case -NFS4ERR_DELAY:
 		case -NFS4ERR_GRACE:
-			set_bit(NFS_DELEGATED_STATE, &state->flags);
 			ssleep(1);
 			return -EAGAIN;
 		case -ENOMEM:
@@ -2190,8 +2225,7 @@ static int nfs4_handle_delegation_recall_error(struct nfs_server *server, struct
 }
 
 int nfs4_open_delegation_recall(struct nfs_open_context *ctx,
-		struct nfs4_state *state, const nfs4_stateid *stateid,
-		fmode_t type)
+		struct nfs4_state *state, const nfs4_stateid *stateid)
 {
 	struct nfs_server *server = NFS_SERVER(state->inode);
 	struct nfs4_opendata *opendata;
@@ -2202,20 +2236,23 @@ int nfs4_open_delegation_recall(struct nfs_open_context *ctx,
 	if (IS_ERR(opendata))
 		return PTR_ERR(opendata);
 	nfs4_stateid_copy(&opendata->o_arg.u.delegation, stateid);
-	nfs_state_clear_delegation(state);
-	switch (type & (FMODE_READ|FMODE_WRITE)) {
-	case FMODE_READ|FMODE_WRITE:
-	case FMODE_WRITE:
+	if (!test_bit(NFS_O_RDWR_STATE, &state->flags)) {
 		err = nfs4_open_recover_helper(opendata, FMODE_READ|FMODE_WRITE);
 		if (err)
-			break;
+			goto out;
+	}
+	if (!test_bit(NFS_O_WRONLY_STATE, &state->flags)) {
 		err = nfs4_open_recover_helper(opendata, FMODE_WRITE);
 		if (err)
-			break;
-		/* Fall through */
-	case FMODE_READ:
+			goto out;
+	}
+	if (!test_bit(NFS_O_RDONLY_STATE, &state->flags)) {
 		err = nfs4_open_recover_helper(opendata, FMODE_READ);
+		if (err)
+			goto out;
 	}
+	nfs_state_clear_delegation(state);
+out:
 	nfs4_opendata_put(opendata);
 	return nfs4_handle_delegation_recall_error(server, state, stateid, NULL, err);
 }
@@ -2463,6 +2500,7 @@ static int nfs4_run_open_task(struct nfs4_opendata *data,
 	if (!ctx) {
 		nfs4_init_sequence(&o_arg->seq_args, &o_res->seq_res, 1, 1);
 		data->is_recover = true;
+		task_setup_data.flags |= RPC_TASK_TIMEOUT;
 	} else {
 		nfs4_init_sequence(&o_arg->seq_args, &o_res->seq_res, 1, 0);
 		pnfs_lgopen_prepare(data, ctx);
@@ -2669,6 +2707,7 @@ static int nfs40_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *st
 {
 	/* NFSv4.0 doesn't allow for delegation recovery on open expire */
 	nfs40_clear_delegation_stateid(state);
+	nfs_state_clear_open_state_flags(state);
 	return nfs4_open_expired(sp, state);
 }
 
@@ -2711,13 +2750,13 @@ out_free:
 	return -NFS4ERR_EXPIRED;
 }
 
-static void nfs41_check_delegation_stateid(struct nfs4_state *state)
+static int nfs41_check_delegation_stateid(struct nfs4_state *state)
 {
 	struct nfs_server *server = NFS_SERVER(state->inode);
 	nfs4_stateid stateid;
 	struct nfs_delegation *delegation;
 	const struct cred *cred = NULL;
-	int status;
+	int status, ret = NFS_OK;
 
 	/* Get the delegation credential for use by test/free_stateid */
 	rcu_read_lock();
@@ -2725,20 +2764,15 @@ static void nfs41_check_delegation_stateid(struct nfs4_state *state)
 	if (delegation == NULL) {
 		rcu_read_unlock();
 		nfs_state_clear_delegation(state);
-		return;
+		return NFS_OK;
 	}
 
 	nfs4_stateid_copy(&stateid, &delegation->stateid);
-	if (test_bit(NFS_DELEGATION_REVOKED, &delegation->flags)) {
-		rcu_read_unlock();
-		nfs_state_clear_delegation(state);
-		return;
-	}
 
 	if (!test_and_clear_bit(NFS_DELEGATION_TEST_EXPIRED,
 				&delegation->flags)) {
 		rcu_read_unlock();
-		return;
+		return NFS_OK;
 	}
 
 	if (delegation->cred)
@@ -2748,9 +2782,24 @@ static void nfs41_check_delegation_stateid(struct nfs4_state *state)
 	trace_nfs4_test_delegation_stateid(state, NULL, status);
 	if (status == -NFS4ERR_EXPIRED || status == -NFS4ERR_BAD_STATEID)
 		nfs_finish_clear_delegation_stateid(state, &stateid);
+	else
+		ret = status;
 
-	if (delegation->cred)
-		put_cred(cred);
+	put_cred(cred);
+	return ret;
+}
+
+static void nfs41_delegation_recover_stateid(struct nfs4_state *state)
+{
+	nfs4_stateid tmp;
+
+	if (test_bit(NFS_DELEGATED_STATE, &state->flags) &&
+	    nfs4_copy_delegation_stateid(state->inode, state->state,
+				&tmp, NULL) &&
+	    nfs4_stateid_match_other(&state->stateid, &tmp))
+		nfs_state_set_delegation(state, &tmp, state->state);
+	else
+		nfs_state_clear_delegation(state);
 }
 
 /**
@@ -2820,21 +2869,12 @@ static int nfs41_check_open_stateid(struct nfs4_state *state)
 	const struct cred *cred = state->owner->so_cred;
 	int status;
 
-	if (test_bit(NFS_OPEN_STATE, &state->flags) == 0) {
-		if (test_bit(NFS_DELEGATED_STATE, &state->flags) == 0)  {
-			if (nfs4_have_delegation(state->inode, state->state))
-				return NFS_OK;
-			return -NFS4ERR_OPENMODE;
-		}
+	if (test_bit(NFS_OPEN_STATE, &state->flags) == 0)
 		return -NFS4ERR_BAD_STATEID;
-	}
 	status = nfs41_test_and_free_expired_stateid(server, stateid, cred);
 	trace_nfs4_test_open_stateid(state, NULL, status);
 	if (status == -NFS4ERR_EXPIRED || status == -NFS4ERR_BAD_STATEID) {
-		clear_bit(NFS_O_RDONLY_STATE, &state->flags);
-		clear_bit(NFS_O_WRONLY_STATE, &state->flags);
-		clear_bit(NFS_O_RDWR_STATE, &state->flags);
-		clear_bit(NFS_OPEN_STATE, &state->flags);
+		nfs_state_clear_open_state_flags(state);
 		stateid->type = NFS4_INVALID_STATEID_TYPE;
 		return status;
 	}
@@ -2847,7 +2887,11 @@ static int nfs41_open_expired(struct nfs4_state_owner *sp, struct nfs4_state *st
 {
 	int status;
 
-	nfs41_check_delegation_stateid(state);
+	status = nfs41_check_delegation_stateid(state);
+	if (status != NFS_OK)
+		return status;
+	nfs41_delegation_recover_stateid(state);
+
 	status = nfs41_check_expired_locks(state);
 	if (status != NFS_OK)
 		return status;
@@ -2900,14 +2944,13 @@ static unsigned nfs4_exclusive_attrset(struct nfs4_opendata *opendata,
 }
 
 static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata,
-		fmode_t fmode,
-		int flags,
-		struct nfs_open_context *ctx)
+		int flags, struct nfs_open_context *ctx)
 {
 	struct nfs4_state_owner *sp = opendata->owner;
 	struct nfs_server *server = sp->so_server;
 	struct dentry *dentry;
 	struct nfs4_state *state;
+	fmode_t acc_mode = _nfs4_ctx_to_accessmode(ctx);
 	unsigned int seq;
 	int ret;
 
@@ -2946,7 +2989,8 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata,
 	/* Parse layoutget results before we check for access */
 	pnfs_parse_lgopen(state->inode, opendata->lgp, ctx);
 
-	ret = nfs4_opendata_access(sp->so_cred, opendata, state, fmode, flags);
+	ret = nfs4_opendata_access(sp->so_cred, opendata, state,
+			acc_mode, flags);
 	if (ret != 0)
 		goto out;
 
@@ -2978,7 +3022,7 @@ static int _nfs4_do_open(struct inode *dir,
 	struct dentry *dentry = ctx->dentry;
 	const struct cred *cred = ctx->cred;
 	struct nfs4_threshold **ctx_th = &ctx->mdsthreshold;
-	fmode_t fmode = ctx->mode & (FMODE_READ|FMODE_WRITE|FMODE_EXEC);
+	fmode_t fmode = _nfs4_ctx_to_openmode(ctx);
 	enum open_claim_type4 claim = NFS4_OPEN_CLAIM_NULL;
 	struct iattr *sattr = c->sattr;
 	struct nfs4_label *label = c->label;
@@ -3024,7 +3068,7 @@ static int _nfs4_do_open(struct inode *dir,
 	if (d_really_is_positive(dentry))
 		opendata->state = nfs4_get_open_state(d_inode(dentry), sp);
 
-	status = _nfs4_open_and_get_state(opendata, fmode, flags, ctx);
+	status = _nfs4_open_and_get_state(opendata, flags, ctx);
 	if (status != 0)
 		goto err_free_label;
 	state = ctx->state;
@@ -3172,7 +3216,7 @@ static int _nfs4_do_setattr(struct inode *inode,
 
 	if (nfs4_copy_delegation_stateid(inode, FMODE_WRITE, &arg->stateid, &delegation_cred)) {
 		/* Use that stateid */
-	} else if (ctx != NULL) {
+	} else if (ctx != NULL && ctx->state) {
 		struct nfs_lock_context *l_ctx;
 		if (!nfs4_valid_open_stateid(ctx->state))
 			return -EBADF;
@@ -3594,9 +3638,9 @@ static void nfs4_close_context(struct nfs_open_context *ctx, int is_sync)
 	if (ctx->state == NULL)
 		return;
 	if (is_sync)
-		nfs4_close_sync(ctx->state, ctx->mode);
+		nfs4_close_sync(ctx->state, _nfs4_ctx_to_openmode(ctx));
 	else
-		nfs4_close_state(ctx->state, ctx->mode);
+		nfs4_close_state(ctx->state, _nfs4_ctx_to_openmode(ctx));
 }
 
 #define FATTR4_WORD1_NFS40_MASK (2*FATTR4_WORD1_MOUNTED_ON_FILEID - 1UL)
@@ -5980,7 +6024,7 @@ int nfs4_proc_setclientid(struct nfs_client *clp, u32 program,
 		.rpc_message = &msg,
 		.callback_ops = &nfs4_setclientid_ops,
 		.callback_data = &setclientid,
-		.flags = RPC_TASK_TIMEOUT,
+		.flags = RPC_TASK_TIMEOUT | RPC_TASK_NO_ROUND_ROBIN,
 	};
 	int status;
 
@@ -6046,7 +6090,8 @@ int nfs4_proc_setclientid_confirm(struct nfs_client *clp,
 	dprintk("NFS call  setclientid_confirm auth=%s, (client ID %llx)\n",
 		clp->cl_rpcclient->cl_auth->au_ops->au_name,
 		clp->cl_clientid);
-	status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
+	status = rpc_call_sync(clp->cl_rpcclient, &msg,
+			       RPC_TASK_TIMEOUT | RPC_TASK_NO_ROUND_ROBIN);
 	trace_nfs4_setclientid_confirm(clp, status);
 	dprintk("NFS reply setclientid_confirm: %d\n", status);
 	return status;
@@ -7627,7 +7672,7 @@ static int _nfs4_proc_secinfo(struct inode *dir, const struct qstr *name, struct
 		NFS_SP4_MACH_CRED_SECINFO, &clnt, &msg);
 
 	status = nfs4_call_sync(clnt, NFS_SERVER(dir), &msg, &args.seq_args,
-				&res.seq_res, 0);
+				&res.seq_res, RPC_TASK_NO_ROUND_ROBIN);
 	dprintk("NFS reply  secinfo: %d\n", status);
 
 	put_cred(cred);
@@ -7965,7 +8010,7 @@ nfs4_run_exchange_id(struct nfs_client *clp, const struct cred *cred,
 		.rpc_client = clp->cl_rpcclient,
 		.callback_ops = &nfs4_exchange_id_call_ops,
 		.rpc_message = &msg,
-		.flags = RPC_TASK_TIMEOUT,
+		.flags = RPC_TASK_TIMEOUT | RPC_TASK_NO_ROUND_ROBIN,
 	};
 	struct nfs41_exchange_id_data *calldata;
 	int status;
@@ -8190,7 +8235,8 @@ static int _nfs4_proc_destroy_clientid(struct nfs_client *clp,
 	};
 	int status;
 
-	status = rpc_call_sync(clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
+	status = rpc_call_sync(clp->cl_rpcclient, &msg,
+			       RPC_TASK_TIMEOUT | RPC_TASK_NO_ROUND_ROBIN);
 	trace_nfs4_destroy_clientid(clp, status);
 	if (status)
 		dprintk("NFS: Got error %d from the server %s on "
@@ -8241,6 +8287,8 @@ out:
 	return ret;
 }
 
+#endif /* CONFIG_NFS_V4_1 */
+
 struct nfs4_get_lease_time_data {
 	struct nfs4_get_lease_time_args *args;
 	struct nfs4_get_lease_time_res *res;
@@ -8273,7 +8321,7 @@ static void nfs4_get_lease_time_done(struct rpc_task *task, void *calldata)
 			(struct nfs4_get_lease_time_data *)calldata;
 
 	dprintk("--> %s\n", __func__);
-	if (!nfs41_sequence_done(task, &data->res->lr_seq_res))
+	if (!nfs4_sequence_done(task, &data->res->lr_seq_res))
 		return;
 	switch (task->tk_status) {
 	case -NFS4ERR_DELAY:
@@ -8331,6 +8379,8 @@ int nfs4_proc_get_lease_time(struct nfs_client *clp, struct nfs_fsinfo *fsinfo)
 	return status;
 }
 
+#ifdef CONFIG_NFS_V4_1
+
 /*
  * Initialize the values to be used by the client in CREATE_SESSION
  * If nfs4_init_session set the fore channel request and response sizes,
@@ -8345,6 +8395,7 @@ static void nfs4_init_channel_attrs(struct nfs41_create_session_args *args,
 {
 	unsigned int max_rqst_sz, max_resp_sz;
 	unsigned int max_bc_payload = rpc_max_bc_payload(clnt);
+	unsigned int max_bc_slots = rpc_num_bc_slots(clnt);
 
 	max_rqst_sz = NFS_MAX_FILE_IO_SIZE + nfs41_maxwrite_overhead;
 	max_resp_sz = NFS_MAX_FILE_IO_SIZE + nfs41_maxread_overhead;
@@ -8367,6 +8418,8 @@ static void nfs4_init_channel_attrs(struct nfs41_create_session_args *args,
 	args->bc_attrs.max_resp_sz_cached = 0;
 	args->bc_attrs.max_ops = NFS4_MAX_BACK_CHANNEL_OPS;
 	args->bc_attrs.max_reqs = max_t(unsigned short, max_session_cb_slots, 1);
+	if (args->bc_attrs.max_reqs > max_bc_slots)
+		args->bc_attrs.max_reqs = max_bc_slots;
 
 	dprintk("%s: Back Channel : max_rqst_sz=%u max_resp_sz=%u "
 		"max_resp_sz_cached=%u max_ops=%u max_reqs=%u\n",
@@ -8469,7 +8522,8 @@ static int _nfs4_proc_create_session(struct nfs_client *clp,
 	nfs4_init_channel_attrs(&args, clp->cl_rpcclient);
 	args.flags = (SESSION4_PERSIST | SESSION4_BACK_CHAN);
 
-	status = rpc_call_sync(session->clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
+	status = rpc_call_sync(session->clp->cl_rpcclient, &msg,
+			       RPC_TASK_TIMEOUT | RPC_TASK_NO_ROUND_ROBIN);
 	trace_nfs4_create_session(clp, status);
 
 	switch (status) {
@@ -8545,7 +8599,8 @@ int nfs4_proc_destroy_session(struct nfs4_session *session,
 	if (!test_and_clear_bit(NFS4_SESSION_ESTABLISHED, &session->session_state))
 		return 0;
 
-	status = rpc_call_sync(session->clp->cl_rpcclient, &msg, RPC_TASK_TIMEOUT);
+	status = rpc_call_sync(session->clp->cl_rpcclient, &msg,
+			       RPC_TASK_TIMEOUT | RPC_TASK_NO_ROUND_ROBIN);
 	trace_nfs4_destroy_session(session->clp, status);
 
 	if (status)
@@ -8799,7 +8854,7 @@ static int nfs41_proc_reclaim_complete(struct nfs_client *clp,
 		.rpc_client = clp->cl_rpcclient,
 		.rpc_message = &msg,
 		.callback_ops = &nfs4_reclaim_complete_call_ops,
-		.flags = RPC_TASK_ASYNC,
+		.flags = RPC_TASK_ASYNC | RPC_TASK_NO_ROUND_ROBIN,
 	};
 	int status = -ENOMEM;
 
@@ -9318,7 +9373,7 @@ _nfs41_proc_secinfo_no_name(struct nfs_server *server, struct nfs_fh *fhandle,
 
 	dprintk("--> %s\n", __func__);
 	status = nfs4_call_sync(clnt, server, &msg, &args.seq_args,
-				&res.seq_res, 0);
+				&res.seq_res, RPC_TASK_NO_ROUND_ROBIN);
 	dprintk("<-- %s status=%d\n", __func__, status);
 
 	put_cred(cred);