SUNRPC: Handle ENETDOWN errors

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

net/sunrpc/clnt.c

@@ -1841,6 +1841,7 @@ call_bind_status(struct rpc_task *task)
 	case -ECONNABORTED:
 	case -ENOTCONN:
 	case -EHOSTDOWN:
+	case -ENETDOWN:
 	case -EHOSTUNREACH:
 	case -ENETUNREACH:
 	case -ENOBUFS:
@@ -1917,6 +1918,7 @@ call_connect_status(struct rpc_task *task)
 		/* fall through */
 	case -ECONNRESET:
 	case -ECONNABORTED:
+	case -ENETDOWN:
 	case -ENETUNREACH:
 	case -EHOSTUNREACH:
 	case -EADDRINUSE:
@@ -2022,6 +2024,7 @@ call_transmit_status(struct rpc_task *task)
 		 */
 	case -ECONNREFUSED:
 	case -EHOSTDOWN:
+	case -ENETDOWN:
 	case -EHOSTUNREACH:
 	case -ENETUNREACH:
 	case -EPERM:
@@ -2071,6 +2074,7 @@ call_bc_transmit(struct rpc_task *task)
 	switch (task->tk_status) {
 	case 0:
 		/* Success */
+	case -ENETDOWN:
 	case -EHOSTDOWN:
 	case -EHOSTUNREACH:
 	case -ENETUNREACH:
@@ -2139,6 +2143,7 @@ call_status(struct rpc_task *task)
 	task->tk_status = 0;
 	switch(status) {
 	case -EHOSTDOWN:
+	case -ENETDOWN:
 	case -EHOSTUNREACH:
 	case -ENETUNREACH:
 	case -EPERM:

net/sunrpc/xprtsock.c

@@ -2439,6 +2439,7 @@ static void xs_tcp_setup_socket(struct work_struct *work)
 		 */
 	case -ECONNREFUSED:
 	case -ECONNRESET:
+	case -ENETDOWN:
 	case -ENETUNREACH:
 	case -EHOSTUNREACH:
 	case -EADDRINUSE: