##args); \
} while (0)
-static rwlock_t o2net_handler_lock = RW_LOCK_UNLOCKED;
+static DEFINE_RWLOCK(o2net_handler_lock);
static struct rb_root o2net_handler_tree = RB_ROOT;
static struct o2net_node o2net_nodes[O2NM_MAX_NODES];
[O2NET_ERR_DIED] = -EHOSTDOWN,};
/* can't quite avoid *all* internal declarations :/ */
-static void o2net_sc_connect_completed(void *arg);
-static void o2net_rx_until_empty(void *arg);
-static void o2net_shutdown_sc(void *arg);
+static void o2net_sc_connect_completed(struct work_struct *work);
+static void o2net_rx_until_empty(struct work_struct *work);
+static void o2net_shutdown_sc(struct work_struct *work);
static void o2net_listen_data_ready(struct sock *sk, int bytes);
-static void o2net_sc_send_keep_req(void *arg);
+static void o2net_sc_send_keep_req(struct work_struct *work);
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)
+{
+ return o2nm_single_cluster->cl_reconnect_delay_ms;
+}
+
+static inline int o2net_keepalive_delay(struct o2nm_node *node)
+{
+ return o2nm_single_cluster->cl_keepalive_delay_ms;
+}
+
+static inline int o2net_idle_timeout(struct o2nm_node *node)
+{
+ return o2nm_single_cluster->cl_idle_timeout_ms;
+}
static inline int o2net_sys_err_to_errno(enum o2net_system_error err)
{
{
struct o2net_sock_container *sc = container_of(kref,
struct o2net_sock_container, sc_kref);
+ BUG_ON(timer_pending(&sc->sc_idle_timeout));
+
sclog(sc, "releasing\n");
if (sc->sc_sock) {
o2nm_node_get(node);
sc->sc_node = node;
- INIT_WORK(&sc->sc_connect_work, o2net_sc_connect_completed, sc);
- INIT_WORK(&sc->sc_rx_work, o2net_rx_until_empty, sc);
- INIT_WORK(&sc->sc_shutdown_work, o2net_shutdown_sc, sc);
- INIT_WORK(&sc->sc_keepalive_work, o2net_sc_send_keep_req, sc);
+ INIT_WORK(&sc->sc_connect_work, o2net_sc_connect_completed);
+ INIT_WORK(&sc->sc_rx_work, o2net_rx_until_empty);
+ INIT_WORK(&sc->sc_shutdown_work, o2net_shutdown_sc);
+ INIT_DELAYED_WORK(&sc->sc_keepalive_work, o2net_sc_send_keep_req);
init_timer(&sc->sc_idle_timeout);
sc->sc_idle_timeout.function = o2net_idle_timer;
sc_put(sc);
}
static void o2net_sc_queue_delayed_work(struct o2net_sock_container *sc,
- struct work_struct *work,
+ struct delayed_work *work,
int delay)
{
sc_get(sc);
sc_put(sc);
}
static void o2net_sc_cancel_delayed_work(struct o2net_sock_container *sc,
- struct work_struct *work)
+ struct delayed_work *work)
{
if (cancel_delayed_work(work))
sc_put(sc);
}
if (was_valid && !valid) {
- mlog(ML_NOTICE, "no longer connected to " SC_NODEF_FMT "\n",
- SC_NODEF_ARGS(old_sc));
+ printk(KERN_INFO "o2net: no longer connected to "
+ SC_NODEF_FMT "\n", SC_NODEF_ARGS(old_sc));
o2net_complete_nodes_nsw(nn);
}
* the only way to start connecting again is to down
* heartbeat and bring it back up. */
cancel_delayed_work(&nn->nn_connect_expired);
- mlog(ML_NOTICE, "%s " SC_NODEF_FMT "\n",
- o2nm_this_node() > sc->sc_node->nd_num ?
- "connected to" : "accepted connection from",
- SC_NODEF_ARGS(sc));
+ printk(KERN_INFO "o2net: %s " SC_NODEF_FMT "\n",
+ o2nm_this_node() > sc->sc_node->nd_num ?
+ "connected to" : "accepted connection from",
+ SC_NODEF_ARGS(sc));
}
/* trigger the connecting worker func as long as we're not valid,
/* delay if we're withing a RECONNECT_DELAY of the
* last attempt */
delay = (nn->nn_last_connect_attempt +
- msecs_to_jiffies(O2NET_RECONNECT_DELAY_MS))
+ msecs_to_jiffies(o2net_reconnect_delay(sc->sc_node)))
- jiffies;
- if (delay > msecs_to_jiffies(O2NET_RECONNECT_DELAY_MS))
+ if (delay > msecs_to_jiffies(o2net_reconnect_delay(sc->sc_node)))
delay = 0;
mlog(ML_CONN, "queueing conn attempt in %lu jiffies\n", delay);
queue_delayed_work(o2net_wq, &nn->nn_connect_work, delay);
* ourselves as state_change couldn't get the nn_lock and call set_nn_state
* itself.
*/
-static void o2net_shutdown_sc(void *arg)
+static void o2net_shutdown_sc(struct work_struct *work)
{
- struct o2net_sock_container *sc = arg;
+ struct o2net_sock_container *sc =
+ container_of(work, struct o2net_sock_container,
+ sc_shutdown_work);
struct o2net_node *nn = o2net_nn_from_num(sc->sc_node->nd_num);
sclog(sc, "shutting down\n");
/* set valid and queue the idle timers only if it hasn't been
* shut down already */
if (nn->nn_sc == sc) {
- o2net_sc_postpone_idle(sc);
+ o2net_sc_reset_idle_timer(sc);
o2net_set_nn_state(nn, sc, 1, 0);
}
spin_unlock(&nn->nn_lock);
/* this work func is triggerd by data ready. it reads until it can read no
* more. it interprets 0, eof, as fatal. if data_ready hits while we're doing
* our work the work struct will be marked and we'll be called again. */
-static void o2net_rx_until_empty(void *arg)
+static void o2net_rx_until_empty(struct work_struct *work)
{
- struct o2net_sock_container *sc = arg;
+ struct o2net_sock_container *sc =
+ container_of(work, struct o2net_sock_container, sc_rx_work);
int ret;
do {
/* called when a connect completes and after a sock is accepted. the
* rx path will see the response and mark the sc valid */
-static void o2net_sc_connect_completed(void *arg)
+static void o2net_sc_connect_completed(struct work_struct *work)
{
- struct o2net_sock_container *sc = arg;
+ struct o2net_sock_container *sc =
+ container_of(work, struct o2net_sock_container,
+ sc_connect_work);
mlog(ML_MSG, "sc sending handshake with ver %llu id %llx\n",
(unsigned long long)O2NET_PROTOCOL_VERSION,
}
/* this is called as a work_struct func. */
-static void o2net_sc_send_keep_req(void *arg)
+static void o2net_sc_send_keep_req(struct work_struct *work)
{
- struct o2net_sock_container *sc = arg;
+ struct o2net_sock_container *sc =
+ container_of(work, struct o2net_sock_container,
+ sc_keepalive_work.work);
o2net_sendpage(sc, o2net_keep_req, sizeof(*o2net_keep_req));
sc_put(sc);
do_gettimeofday(&now);
- mlog(ML_NOTICE, "connection to " SC_NODEF_FMT " has been idle for 10 "
- "seconds, shutting it down.\n", SC_NODEF_ARGS(sc));
+ 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);
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",
o2net_sc_queue_work(sc, &sc->sc_shutdown_work);
}
-static void o2net_sc_postpone_idle(struct o2net_sock_container *sc)
+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,
- O2NET_KEEPALIVE_DELAY_SECS * HZ);
+ msecs_to_jiffies(o2net_keepalive_delay(sc->sc_node)));
do_gettimeofday(&sc->sc_tv_timer);
mod_timer(&sc->sc_idle_timeout,
- jiffies + (O2NET_IDLE_TIMEOUT_SECS * HZ));
+ jiffies + msecs_to_jiffies(o2net_idle_timeout(sc->sc_node)));
+}
+
+static void o2net_sc_postpone_idle(struct o2net_sock_container *sc)
+{
+ /* Only push out an existing timer */
+ if (timer_pending(&sc->sc_idle_timeout))
+ o2net_sc_reset_idle_timer(sc);
}
/* this work func is kicked whenever a path sets the nn state which doesn't
* having a connect attempt fail, etc. This centralizes the logic which decides
* if a connect attempt should be made or if we should give up and all future
* transmit attempts should fail */
-static void o2net_start_connect(void *arg)
+static void o2net_start_connect(struct work_struct *work)
{
- struct o2net_node *nn = arg;
+ struct o2net_node *nn =
+ container_of(work, struct o2net_node, nn_connect_work.work);
struct o2net_sock_container *sc = NULL;
struct o2nm_node *node = NULL, *mynode = NULL;
struct socket *sock = NULL;
struct sockaddr_in myaddr = {0, }, remoteaddr = {0, };
- int ret = 0;
+ int ret = 0, stop;
/* if we're greater we initiate tx, otherwise we accept */
if (o2nm_this_node() <= o2net_num_from_nn(nn))
spin_lock(&nn->nn_lock);
/* see if we already have one pending or have given up */
- if (nn->nn_sc || nn->nn_persistent_error)
- arg = NULL;
+ stop = (nn->nn_sc || nn->nn_persistent_error);
spin_unlock(&nn->nn_lock);
- if (arg == NULL) /* *shrug*, needed some indicator */
+ if (stop)
goto out;
nn->nn_last_connect_attempt = jiffies;
return;
}
-static void o2net_connect_expired(void *arg)
+static void o2net_connect_expired(struct work_struct *work)
{
- struct o2net_node *nn = arg;
+ struct o2net_node *nn =
+ container_of(work, struct o2net_node, nn_connect_expired.work);
spin_lock(&nn->nn_lock);
if (!nn->nn_sc_valid) {
+ struct o2nm_node *node = nn->nn_sc->sc_node;
mlog(ML_ERROR, "no connection established with node %u after "
- "%u seconds, giving up and returning errors.\n",
- o2net_num_from_nn(nn), O2NET_IDLE_TIMEOUT_SECS);
+ "%u.%u seconds, giving up and returning errors.\n",
+ o2net_num_from_nn(nn),
+ o2net_idle_timeout(node) / 1000,
+ o2net_idle_timeout(node) % 1000);
o2net_set_nn_state(nn, NULL, 0, -ENOTCONN);
}
spin_unlock(&nn->nn_lock);
}
-static void o2net_still_up(void *arg)
+static void o2net_still_up(struct work_struct *work)
{
- struct o2net_node *nn = arg;
+ struct o2net_node *nn =
+ container_of(work, struct o2net_node, nn_still_up.work);
o2quo_hb_still_up(o2net_num_from_nn(nn));
}
/* ensure an immediate connect attempt */
nn->nn_last_connect_attempt = jiffies -
- (msecs_to_jiffies(O2NET_RECONNECT_DELAY_MS) + 1);
+ (msecs_to_jiffies(o2net_reconnect_delay(node)) + 1);
if (node_num != o2nm_this_node()) {
/* heartbeat doesn't work unless a local node number is
* configured and doing so brings up the o2net_wq, so we can
* use it.. */
queue_delayed_work(o2net_wq, &nn->nn_connect_expired,
- O2NET_IDLE_TIMEOUT_SECS * HZ);
+ msecs_to_jiffies(o2net_idle_timeout(node)));
/* believe it or not, accept and node hearbeating testing
* can succeed for this node before we got here.. so
return ret;
}
-static void o2net_accept_many(void *arg)
+static void o2net_accept_many(struct work_struct *work)
{
- struct socket *sock = arg;
+ struct socket *sock = o2net_listen_sock;
while (o2net_accept_one(sock) == 0)
cond_resched();
}
write_unlock_bh(&sock->sk->sk_callback_lock);
o2net_listen_sock = sock;
- INIT_WORK(&o2net_listen_work, o2net_accept_many, sock);
+ INIT_WORK(&o2net_listen_work, o2net_accept_many);
sock->sk->sk_reuse = 1;
ret = sock->ops->bind(sock, (struct sockaddr *)&sin, sizeof(sin));
struct o2net_node *nn = o2net_nn_from_num(i);
spin_lock_init(&nn->nn_lock);
- INIT_WORK(&nn->nn_connect_work, o2net_start_connect, nn);
- INIT_WORK(&nn->nn_connect_expired, o2net_connect_expired, nn);
- INIT_WORK(&nn->nn_still_up, o2net_still_up, nn);
+ INIT_DELAYED_WORK(&nn->nn_connect_work, o2net_start_connect);
+ INIT_DELAYED_WORK(&nn->nn_connect_expired,
+ o2net_connect_expired);
+ INIT_DELAYED_WORK(&nn->nn_still_up, o2net_still_up);
/* until we see hb from a node we'll return einval */
nn->nn_persistent_error = -ENOTCONN;
init_waitqueue_head(&nn->nn_sc_wq);
git.samba.org / sfrench / cifs-2.6.git / blobdiff