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ocfs2/cluster: Get rid of arguments to the timeout routines 

We keep seeing bug reports related to NULL pointer derefs in
o2net_set_nn_state(). When I originally wrote up the configurable timeout
patch, I had tried to plan for multiple clusters. This was silly.

The timeout routines all use o2nm_single_cluster so there's no point in
passing an argument at all. This patch removes the arguments and kills those
bugs dead.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>
This commit is contained in:
Jeff Mahoney 2008-03-28 16:44:13 -07:00 committed by Mark Fasheh
parent dda47bce91
commit 409753bf6d
1 changed files with 20 additions and 27 deletions
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47
fs/ocfs2/cluster/tcp.c
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@ -142,23 +142,17 @@ static void o2net_idle_timer(unsigned long data);
static void o2net_sc_postpone_idle(struct o2net_sock_container *sc);
static void o2net_sc_reset_idle_timer(struct o2net_sock_container *sc);
/*
* FIXME: These should use to_o2nm_cluster_from_node(), but we end up
* losing our parent link to the cluster during shutdown. This can be
* solved by adding a pre-removal callback to configfs, or passing
* around the cluster with the node. -jeffm
*/
static inline int o2net_reconnect_delay(struct o2nm_node *node)
static inline int o2net_reconnect_delay(void)
{
return o2nm_single_cluster->cl_reconnect_delay_ms;
}
static inline int o2net_keepalive_delay(struct o2nm_node *node)
static inline int o2net_keepalive_delay(void)
{
return o2nm_single_cluster->cl_keepalive_delay_ms;
}
static inline int o2net_idle_timeout(struct o2nm_node *node)
static inline int o2net_idle_timeout(void)
{
return o2nm_single_cluster->cl_idle_timeout_ms;
}
@ -444,9 +438,9 @@ static void o2net_set_nn_state(struct o2net_node *nn,
/* delay if we're withing a RECONNECT_DELAY of the
* last attempt */
delay = (nn->nn_last_connect_attempt +
msecs_to_jiffies(o2net_reconnect_delay(NULL)))
msecs_to_jiffies(o2net_reconnect_delay()))
- jiffies;
if (delay > msecs_to_jiffies(o2net_reconnect_delay(NULL)))
if (delay > msecs_to_jiffies(o2net_reconnect_delay()))
delay = 0;
mlog(ML_CONN, "queueing conn attempt in %lu jiffies\n", delay);
queue_delayed_work(o2net_wq, &nn->nn_connect_work, delay);
@ -460,7 +454,7 @@ static void o2net_set_nn_state(struct o2net_node *nn,
* the connect_expired work will do anything. The rest will see
* that it's already queued and do nothing.
*/
delay += msecs_to_jiffies(o2net_idle_timeout(NULL));
delay += msecs_to_jiffies(o2net_idle_timeout());
queue_delayed_work(o2net_wq, &nn->nn_connect_expired, delay);
}
@ -1159,23 +1153,23 @@ static int o2net_check_handshake(struct o2net_sock_container *sc)
* but isn't. This can ultimately cause corruption.
*/
if (be32_to_cpu(hand->o2net_idle_timeout_ms) !=
o2net_idle_timeout(sc->sc_node)) {
o2net_idle_timeout()) {
mlog(ML_NOTICE, SC_NODEF_FMT " uses a network idle timeout of "
"%u ms, but we use %u ms locally. disconnecting\n",
SC_NODEF_ARGS(sc),
be32_to_cpu(hand->o2net_idle_timeout_ms),
o2net_idle_timeout(sc->sc_node));
o2net_idle_timeout());
o2net_ensure_shutdown(nn, sc, -ENOTCONN);
return -1;
}
if (be32_to_cpu(hand->o2net_keepalive_delay_ms) !=
o2net_keepalive_delay(sc->sc_node)) {
o2net_keepalive_delay()) {
mlog(ML_NOTICE, SC_NODEF_FMT " uses a keepalive delay of "
"%u ms, but we use %u ms locally. disconnecting\n",
SC_NODEF_ARGS(sc),
be32_to_cpu(hand->o2net_keepalive_delay_ms),
o2net_keepalive_delay(sc->sc_node));
o2net_keepalive_delay());
o2net_ensure_shutdown(nn, sc, -ENOTCONN);
return -1;
}
@ -1353,12 +1347,11 @@ static void o2net_initialize_handshake(void)
{
o2net_hand->o2hb_heartbeat_timeout_ms = cpu_to_be32(
O2HB_MAX_WRITE_TIMEOUT_MS);
o2net_hand->o2net_idle_timeout_ms = cpu_to_be32(
o2net_idle_timeout(NULL));
o2net_hand->o2net_idle_timeout_ms = cpu_to_be32(o2net_idle_timeout());
o2net_hand->o2net_keepalive_delay_ms = cpu_to_be32(
o2net_keepalive_delay(NULL));
o2net_keepalive_delay());
o2net_hand->o2net_reconnect_delay_ms = cpu_to_be32(
o2net_reconnect_delay(NULL));
o2net_reconnect_delay());
}
/* ------------------------------------------------------------ */
@ -1404,8 +1397,8 @@ static void o2net_idle_timer(unsigned long data)
printk(KERN_INFO "o2net: connection to " SC_NODEF_FMT " has been idle for %u.%u "
"seconds, shutting it down.\n", SC_NODEF_ARGS(sc),
o2net_idle_timeout(sc->sc_node) / 1000,
o2net_idle_timeout(sc->sc_node) % 1000);
o2net_idle_timeout() / 1000,
o2net_idle_timeout() % 1000);
mlog(ML_NOTICE, "here are some times that might help debug the "
"situation: (tmr %ld.%ld now %ld.%ld dr %ld.%ld adv "
"%ld.%ld:%ld.%ld func (%08x:%u) %ld.%ld:%ld.%ld)\n",
@ -1433,10 +1426,10 @@ static void o2net_sc_reset_idle_timer(struct o2net_sock_container *sc)
{
o2net_sc_cancel_delayed_work(sc, &sc->sc_keepalive_work);
o2net_sc_queue_delayed_work(sc, &sc->sc_keepalive_work,
msecs_to_jiffies(o2net_keepalive_delay(sc->sc_node)));
msecs_to_jiffies(o2net_keepalive_delay()));
do_gettimeofday(&sc->sc_tv_timer);
mod_timer(&sc->sc_idle_timeout,
jiffies + msecs_to_jiffies(o2net_idle_timeout(sc->sc_node)));
jiffies + msecs_to_jiffies(o2net_idle_timeout()));
}
static void o2net_sc_postpone_idle(struct o2net_sock_container *sc)
@ -1578,8 +1571,8 @@ static void o2net_connect_expired(struct work_struct *work)
mlog(ML_ERROR, "no connection established with node %u after "
"%u.%u seconds, giving up and returning errors.\n",
o2net_num_from_nn(nn),
o2net_idle_timeout(NULL) / 1000,
o2net_idle_timeout(NULL) % 1000);
o2net_idle_timeout() / 1000,
o2net_idle_timeout() % 1000);
o2net_set_nn_state(nn, NULL, 0, -ENOTCONN);
}
@ -1634,7 +1627,7 @@ static void o2net_hb_node_up_cb(struct o2nm_node *node, int node_num,
/* ensure an immediate connect attempt */
nn->nn_last_connect_attempt = jiffies -
(msecs_to_jiffies(o2net_reconnect_delay(node)) + 1);
(msecs_to_jiffies(o2net_reconnect_delay()) + 1);
if (node_num != o2nm_this_node()) {
/* believe it or not, accept and node hearbeating testing