The patch below does not apply to the 4.9-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@xxxxxxxxxxxxxxx>.
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
>From ec6017d9035986a36de064f48a63245930bfad6f Mon Sep 17 00:00:00 2001
From: Olga Kornievskaia <kolga@xxxxxxxxxx>
Date: Wed, 29 May 2019 10:46:00 -0400
Subject: [PATCH] SUNRPC fix regression in umount of a secure mount
If call_status returns ENOTCONN, we need to re-establish the connection
state after. Otherwise the client goes into an infinite loop of call_encode,
call_transmit, call_status (ENOTCONN), call_encode.
Fixes: c8485e4d63 ("SUNRPC: Handle ECONNREFUSED correctly in xprt_transmit()")
Signed-off-by: Olga Kornievskaia <kolga@xxxxxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx # v2.6.29+
Signed-off-by: Anna Schumaker <Anna.Schumaker@xxxxxxxxxx>
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index d6e57da56c94..94a653be8e25 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -2288,13 +2288,13 @@ call_status(struct rpc_task *task)
case -ECONNREFUSED:
case -ECONNRESET:
case -ECONNABORTED:
+ case -ENOTCONN:
rpc_force_rebind(clnt);
/* fall through */
case -EADDRINUSE:
rpc_delay(task, 3*HZ);
/* fall through */
case -EPIPE:
- case -ENOTCONN:
case -EAGAIN:
break;
case -EIO:
