From: Chuck Lever <cel@netapp.com>
Date: Fri, 7 Oct 2005 03:12:58 +0000 (-0400)
Subject: SUNRPC: Retry rpcbind requests if the server's portmapper isn't up
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=ea635a517e350eb03ab5f01618417f31b82a9a4d;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

SUNRPC: Retry rpcbind requests if the server's portmapper isn't up

 After a server crash/reboot, rebinding should always retry, otherwise
 requests on "hard" mounts will fail when they shouldn't.

 Test plan:
 Run a lock-intensive workload against a server while rebooting the server
 repeatedly.

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---

diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 5a8f01d726e9..a5f7029b1daa 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -759,7 +759,8 @@ call_bind_status(struct rpc_task *task)
 	case -EACCES:
 		dprintk("RPC: %4d remote rpcbind: RPC program/version unavailable\n",
 				task->tk_pid);
-		break;
+		rpc_delay(task, 3*HZ);
+		goto retry_bind;
 	case -ETIMEDOUT:
 		dprintk("RPC: %4d rpcbind request timed out\n",
 				task->tk_pid);