From: Trond Myklebust <trond.myklebust@primarydata.com>
To: linux-nfs@vger.kernel.org
Subject: [PATCH] SUNRPC: Ensure that we handle ENOBUFS errors correctly.
Date: Mon, 30 Jun 2014 16:39:04 -0400 [thread overview]
Message-ID: <1404160744-4840-1-git-send-email-trond.myklebust@primarydata.com> (raw)
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@primarydata.com>
---
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 2e6ab10734f6..575e63f6c13e 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1746,6 +1746,7 @@ 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);
@@ -1812,6 +1813,7 @@ 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 */
@@ -1918,6 +1920,7 @@ call_transmit_status(struct rpc_task *task)
case -ECONNRESET:
case -ECONNABORTED:
case -ENOTCONN:
+ case -ENOBUFS:
case -EPIPE:
rpc_task_force_reencode(task);
}
@@ -2034,6 +2037,7 @@ 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 be8bbd5d65ec..8f8589fedfdd 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -594,6 +594,7 @@ static int xs_local_send_request(struct rpc_task *task)
}
switch (status) {
+ case -ENOBUFS:
case -EAGAIN:
status = xs_nospace(task);
break;
@@ -661,6 +662,7 @@ 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
@@ -758,6 +760,7 @@ 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;
@@ -1946,6 +1949,7 @@ 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",
@@ -2281,6 +2285,7 @@ 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;
}
--
1.9.3
reply other threads:[~2014-06-30 20:39 UTC|newest]
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