diff options
| author | Trond Myklebust <Trond.Myklebust@netapp.com> | 2012-10-24 08:53:35 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-31 10:09:57 -0700 |
| commit | cb499284d1cf7de50b85fcfb3248bae2db090d14 (patch) | |
| tree | ec4fa78b53de472b63fe88bfe4041840c38e4199 /fs | |
| parent | eeaeb30f888f0872c029b441a69d67f43e712c80 (diff) | |
LOCKD: Clear ln->nsm_clnt only when ln->nsm_users is zero
commit e498daa81295d02f7359af313c2b7f87e1062207 upstream.
The current code is clearing it in all cases _except_ when zero.
Reported-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/lockd/mon.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/fs/lockd/mon.c b/fs/lockd/mon.c index fe695603e39..3d7e09bcc0e 100644 --- a/fs/lockd/mon.c +++ b/fs/lockd/mon.c @@ -124,18 +124,16 @@ out: static void nsm_client_put(struct net *net) { struct lockd_net *ln = net_generic(net, lockd_net_id); - struct rpc_clnt *clnt = ln->nsm_clnt; - int shutdown = 0; + struct rpc_clnt *clnt = NULL; spin_lock(&ln->nsm_clnt_lock); - if (ln->nsm_users) { - if (--ln->nsm_users) - ln->nsm_clnt = NULL; - shutdown = !ln->nsm_users; + ln->nsm_users--; + if (ln->nsm_users == 0) { + clnt = ln->nsm_clnt; + ln->nsm_clnt = NULL; } spin_unlock(&ln->nsm_clnt_lock); - - if (shutdown) + if (clnt != NULL) rpc_shutdown_client(clnt); } |