From: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
3.12-stable review patch. If anyone has any objections, please let me know.
===============
commit 3601c4a91ebbbf1cf69f66a2abeffc6c64a4fe64 upstream.
Currently, an ENOBUFS error will result in a fatal error for the RPC
call. Normally, we will just want to wait and then retry.
Signed-off-by: Trond Myklebust <trond.myklebust@xxxxxxxxxxxxxxx>
Acked-by: NeilBrown <neilb@xxxxxxx>
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
net/sunrpc/clnt.c | 4 ++++
net/sunrpc/xprtsock.c | 5 +++++
2 files changed, 9 insertions(+)
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 285040c71f38..07a1d5ad2513 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1642,6 +1642,7 @@ call_bind_status(struct rpc_task *task)
case -EHOSTDOWN:
case -EHOSTUNREACH:
case -ENETUNREACH:
+ case -ENOBUFS:
case -EPIPE:
dprintk("RPC: %5u remote rpcbind unreachable: %d\n",
task->tk_pid, task->tk_status);
@@ -1707,6 +1708,7 @@ call_connect_status(struct rpc_task *task)
case -ECONNABORTED:
case -ENETUNREACH:
case -EHOSTUNREACH:
+ case -ENOBUFS:
if (RPC_IS_SOFTCONN(task))
break;
/* retry with existing socket, after a delay */
@@ -1810,6 +1812,7 @@ call_transmit_status(struct rpc_task *task)
case -ECONNRESET:
case -ECONNABORTED:
case -ENOTCONN:
+ case -ENOBUFS:
case -EPIPE:
rpc_task_force_reencode(task);
}
@@ -1922,6 +1925,7 @@ call_status(struct rpc_task *task)
case -ECONNRESET:
case -ECONNABORTED:
rpc_force_rebind(clnt);
+ case -ENOBUFS:
rpc_delay(task, 3*HZ);
case -EPIPE:
case -ENOTCONN:
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 1d034825fcc3..8f5c4da51a70 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -588,6 +588,7 @@ static int xs_local_send_request(struct rpc_task *task)
}
switch (status) {
+ case -ENOBUFS:
case -EAGAIN:
status = xs_nospace(task);
break;
@@ -655,6 +656,7 @@ static int xs_udp_send_request(struct rpc_task *task)
dprintk("RPC: sendmsg returned unrecognized error %d\n",
-status);
case -ENETUNREACH:
+ case -ENOBUFS:
case -EPIPE:
case -ECONNREFUSED:
/* When the server has died, an ICMP port unreachable message
@@ -752,6 +754,7 @@ static int xs_tcp_send_request(struct rpc_task *task)
status = -ENOTCONN;
/* Should we call xs_close() here? */
break;
+ case -ENOBUFS:
case -EAGAIN:
status = xs_nospace(task);
break;
@@ -1928,6 +1931,7 @@ static int xs_local_setup_socket(struct sock_xprt *transport)
dprintk("RPC: xprt %p connected to %s\n",
xprt, xprt->address_strings[RPC_DISPLAY_ADDR]);
xprt_set_connected(xprt);
+ case -ENOBUFS:
break;
case -ENOENT:
dprintk("RPC: xprt %p: socket %s does not exist\n",
@@ -2251,6 +2255,7 @@ static void xs_tcp_setup_socket(struct work_struct *work)
case -ECONNREFUSED:
case -ECONNRESET:
case -ENETUNREACH:
+ case -ENOBUFS:
/* retry with existing socket, after a delay */
goto out;
}
--
2.2.2
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