blob: 2aa192c507f1a57e5ccd8fe506da29d1d5dca30f [file] [log] [blame]
From 3175e1dcec40fab1a444c010087f2068b6b04732 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <trond.myklebust@primarydata.com>
Date: Wed, 21 Jan 2015 14:37:44 -0500
Subject: NFSv4.1: Fix an Oops in nfs41_walk_client_list
From: Trond Myklebust <trond.myklebust@primarydata.com>
commit 3175e1dcec40fab1a444c010087f2068b6b04732 upstream.
If we start state recovery on a client that failed to initialise correctly,
then we are very likely to Oops.
Reported-by: "Mkrtchyan, Tigran" <tigran.mkrtchyan@desy.de>
Link: http://lkml.kernel.org/r/130621862.279655.1421851650684.JavaMail.zimbra@desy.de
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
fs/nfs/nfs4client.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -640,7 +640,7 @@ int nfs41_walk_client_list(struct nfs_cl
prev = pos;
status = nfs_wait_client_init_complete(pos);
- if (status == 0) {
+ if (pos->cl_cons_state == NFS_CS_SESSION_INITING) {
nfs4_schedule_lease_recovery(pos);
status = nfs4_wait_clnt_recover(pos);
}