SUNRPC: Ensure that call_connect times out correctly

commit 485f2251782f7c44299c491d4676a8a01428d191 upstream.

When the server is unavailable due to a networking error, etc, we want
the RPC client to respect the timeout delays when attempting to reconnect.

Reported-by: Neil Brown <neilb@suse.de>
Fixes: 561ec1603171 (SUNRPC: call_connect_status should recheck bind..)
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 0edada9..5a1b8fa 100644 (file)
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1798,10 +1798,6 @@ call_connect_status(struct rpc_task *task)
        trace_rpc_connect_status(task, status);
        task->tk_status = 0;
        switch (status) {
-               /* if soft mounted, test if we've timed out */
-       case -ETIMEDOUT:
-               task->tk_action = call_timeout;
-               return;
        case -ECONNREFUSED:
        case -ECONNRESET:
        case -ECONNABORTED:
@@ -1812,7 +1808,9 @@ call_connect_status(struct rpc_task *task)
                if (RPC_IS_SOFTCONN(task))
                        break;
        case -EAGAIN:
-               task->tk_action = call_bind;
+               /* Check for timeouts before looping back to call_bind */
+       case -ETIMEDOUT:
+               task->tk_action = call_timeout;
                return;
        case 0:
                clnt->cl_stats->netreconn++;