Currently, when an RPC connection times out during the connect phase,
the task is retried by placing it back on the pending queue and waiting
again. In some cases, the timeout occurs because TCP is unable to send
the SYN packet. This situation most often arises on bare metal systems
at boot time, when the NFS mount is attempted while the network link
appears to be up but is not yet stable.
This patch addresses the issue by updating call_connect_status to destroy
the transport on ETIMEDOUT error before retrying the connection. This
ensures that subsequent connection attempts use a fresh transport,
reducing the likelihood of repeated failures due to lingering network
issues.
Signed-off-by: Dai Ngo <dai.ngo@xxxxxxxxxx>
---
net/sunrpc/clnt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 21426c3049d3..701b742750c5 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -2215,6 +2215,7 @@ call_connect_status(struct rpc_task *task)
case -EHOSTUNREACH:
case -EPIPE:
case -EPROTO:
+ case -ETIMEDOUT:
xprt_conditional_disconnect(task->tk_rqstp->rq_xprt,
task->tk_rqstp->rq_connect_cookie);
if (RPC_IS_SOFTCONN(task))
@@ -2225,7 +2226,6 @@ call_connect_status(struct rpc_task *task)
case -EADDRINUSE:
case -ENOTCONN:
case -EAGAIN:
- case -ETIMEDOUT:
if (!(task->tk_flags & RPC_TASK_NO_ROUND_ROBIN) &&
(task->tk_flags & RPC_TASK_MOVEABLE) &&
test_bit(XPRT_REMOVE, &xprt->state)) {
--
2.43.5
