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Commit cdf47706 authored by Andreas Gruenbacher's avatar Andreas Gruenbacher Committed by Trond Myklebust
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[PATCH] RPC: Return -EPFNOSUPPORT for RPC programs that are unavailable 



 Signed-off-by: default avatarAndreas Gruenbacher <agruen@suse.de>
 Signed-off-by: default avatarOlaf Kirch <okir@suse.de>
 Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent 6a19275a

net/sunrpc/clnt.c

+14 −10
Original line number Diff line number Diff line
@@ -1021,10 +1021,11 @@ call_verify(struct rpc_task *task) 
			case RPC_AUTH_ERROR:

				break;

			case RPC_MISMATCH:

				printk(KERN_WARNING "%s: RPC call version mismatch!\n", __FUNCTION__);

				goto out_eio;

				dprintk("%s: RPC call version mismatch!\n", __FUNCTION__);

				error = -EPROTONOSUPPORT;

				goto out_err;

			default:

				printk(KERN_WARNING "%s: RPC call rejected, unknown error: %x\n", __FUNCTION__, n);

				dprintk("%s: RPC call rejected, unknown error: %x\n", __FUNCTION__, n);

				goto out_eio;

		}

		if (--len < 0)
@@ -1075,23 +1076,26 @@ call_verify(struct rpc_task *task) 
	case RPC_SUCCESS:

		return p;

	case RPC_PROG_UNAVAIL:

		printk(KERN_WARNING "RPC: call_verify: program %u is unsupported by server %s\n",

		dprintk("RPC: call_verify: program %u is unsupported by server %s\n",

				(unsigned int)task->tk_client->cl_prog,

				task->tk_client->cl_server);

		goto out_eio;

		error = -EPFNOSUPPORT;

		goto out_err;

	case RPC_PROG_MISMATCH:

		printk(KERN_WARNING "RPC: call_verify: program %u, version %u unsupported by server %s\n",

		dprintk("RPC: call_verify: program %u, version %u unsupported by server %s\n",

				(unsigned int)task->tk_client->cl_prog,

				(unsigned int)task->tk_client->cl_vers,

				task->tk_client->cl_server);

		goto out_eio;

		error = -EPROTONOSUPPORT;

		goto out_err;

	case RPC_PROC_UNAVAIL:

		printk(KERN_WARNING "RPC: call_verify: proc %p unsupported by program %u, version %u on server %s\n",

		dprintk("RPC: call_verify: proc %p unsupported by program %u, version %u on server %s\n",

				task->tk_msg.rpc_proc,

				task->tk_client->cl_prog,

				task->tk_client->cl_vers,

				task->tk_client->cl_server);

		goto out_eio;

		error = -EOPNOTSUPP;

		goto out_err;

	case RPC_GARBAGE_ARGS:

		dprintk("RPC: %4d %s: server saw garbage\n", task->tk_pid, __FUNCTION__);

		break;			/* retry */
@@ -1104,7 +1108,7 @@ call_verify(struct rpc_task *task) 
	task->tk_client->cl_stats->rpcgarbage++;

	if (task->tk_garb_retry) {

		task->tk_garb_retry--;

		dprintk(KERN_WARNING "RPC %s: retrying %4d\n", __FUNCTION__, task->tk_pid);

		dprintk("RPC %s: retrying %4d\n", __FUNCTION__, task->tk_pid);

		task->tk_action = call_bind;

		return NULL;

	}