diff options
Diffstat (limited to 'fs/ocfs2/cluster')
| -rw-r--r-- | fs/ocfs2/cluster/heartbeat.c | 21 | ||||
| -rw-r--r-- | fs/ocfs2/cluster/heartbeat.h | 1 | ||||
| -rw-r--r-- | fs/ocfs2/cluster/masklog.c | 6 | ||||
| -rw-r--r-- | fs/ocfs2/cluster/netdebug.c | 78 | ||||
| -rw-r--r-- | fs/ocfs2/cluster/quorum.c | 13 | ||||
| -rw-r--r-- | fs/ocfs2/cluster/tcp.c | 88 | ||||
| -rw-r--r-- | fs/ocfs2/cluster/tcp.h | 1 |
7 files changed, 128 insertions, 80 deletions
diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index 73039295d0d..eb9d48746ab 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/fs/ocfs2/cluster/heartbeat.c @@ -2244,7 +2244,7 @@ ssize_t o2hb_heartbeat_group_mode_store(struct o2hb_heartbeat_group *group, return -EINVAL; for (i = 0; i < O2HB_HEARTBEAT_NUM_MODES; ++i) { - if (strnicmp(page, o2hb_heartbeat_mode_desc[i], len)) + if (strncasecmp(page, o2hb_heartbeat_mode_desc[i], len)) continue; ret = o2hb_global_heartbeat_mode_set(i); @@ -2572,6 +2572,25 @@ int o2hb_check_node_heartbeating(u8 node_num) } EXPORT_SYMBOL_GPL(o2hb_check_node_heartbeating); +int o2hb_check_node_heartbeating_no_sem(u8 node_num) +{ + unsigned long testing_map[BITS_TO_LONGS(O2NM_MAX_NODES)]; + unsigned long flags; + + spin_lock_irqsave(&o2hb_live_lock, flags); + o2hb_fill_node_map_from_callback(testing_map, sizeof(testing_map)); + spin_unlock_irqrestore(&o2hb_live_lock, flags); + if (!test_bit(node_num, testing_map)) { + mlog(ML_HEARTBEAT, + "node (%u) does not have heartbeating enabled.\n", + node_num); + return 0; + } + + return 1; +} +EXPORT_SYMBOL_GPL(o2hb_check_node_heartbeating_no_sem); + int o2hb_check_node_heartbeating_from_callback(u8 node_num) { unsigned long testing_map[BITS_TO_LONGS(O2NM_MAX_NODES)]; diff --git a/fs/ocfs2/cluster/heartbeat.h b/fs/ocfs2/cluster/heartbeat.h index 00ad8e8fea5..3ef5137dc36 100644 --- a/fs/ocfs2/cluster/heartbeat.h +++ b/fs/ocfs2/cluster/heartbeat.h @@ -80,6 +80,7 @@ void o2hb_fill_node_map(unsigned long *map, void o2hb_exit(void); int o2hb_init(void); int o2hb_check_node_heartbeating(u8 node_num); +int o2hb_check_node_heartbeating_no_sem(u8 node_num); int o2hb_check_node_heartbeating_from_callback(u8 node_num); int o2hb_check_local_node_heartbeating(void); void o2hb_stop_all_regions(void); diff --git a/fs/ocfs2/cluster/masklog.c b/fs/ocfs2/cluster/masklog.c index 07ac24fd925..af7598bff1b 100644 --- a/fs/ocfs2/cluster/masklog.c +++ b/fs/ocfs2/cluster/masklog.c @@ -49,13 +49,13 @@ static ssize_t mlog_mask_show(u64 mask, char *buf) static ssize_t mlog_mask_store(u64 mask, const char *buf, size_t count) { - if (!strnicmp(buf, "allow", 5)) { + if (!strncasecmp(buf, "allow", 5)) { __mlog_set_u64(mask, mlog_and_bits); __mlog_clear_u64(mask, mlog_not_bits); - } else if (!strnicmp(buf, "deny", 4)) { + } else if (!strncasecmp(buf, "deny", 4)) { __mlog_set_u64(mask, mlog_not_bits); __mlog_clear_u64(mask, mlog_and_bits); - } else if (!strnicmp(buf, "off", 3)) { + } else if (!strncasecmp(buf, "off", 3)) { __mlog_clear_u64(mask, mlog_not_bits); __mlog_clear_u64(mask, mlog_and_bits); } else diff --git a/fs/ocfs2/cluster/netdebug.c b/fs/ocfs2/cluster/netdebug.c index 73ba81928bc..27d1242c838 100644 --- a/fs/ocfs2/cluster/netdebug.c +++ b/fs/ocfs2/cluster/netdebug.c @@ -185,29 +185,13 @@ static const struct seq_operations nst_seq_ops = { static int nst_fop_open(struct inode *inode, struct file *file) { struct o2net_send_tracking *dummy_nst; - struct seq_file *seq; - int ret; - dummy_nst = kmalloc(sizeof(struct o2net_send_tracking), GFP_KERNEL); - if (dummy_nst == NULL) { - ret = -ENOMEM; - goto out; - } - dummy_nst->st_task = NULL; - - ret = seq_open(file, &nst_seq_ops); - if (ret) - goto out; - - seq = file->private_data; - seq->private = dummy_nst; + dummy_nst = __seq_open_private(file, &nst_seq_ops, sizeof(*dummy_nst)); + if (!dummy_nst) + return -ENOMEM; o2net_debug_add_nst(dummy_nst); - dummy_nst = NULL; - -out: - kfree(dummy_nst); - return ret; + return 0; } static int nst_fop_release(struct inode *inode, struct file *file) @@ -412,33 +396,27 @@ static const struct seq_operations sc_seq_ops = { .show = sc_seq_show, }; -static int sc_common_open(struct file *file, struct o2net_sock_debug *sd) +static int sc_common_open(struct file *file, int ctxt) { + struct o2net_sock_debug *sd; struct o2net_sock_container *dummy_sc; - struct seq_file *seq; - int ret; - dummy_sc = kmalloc(sizeof(struct o2net_sock_container), GFP_KERNEL); - if (dummy_sc == NULL) { - ret = -ENOMEM; - goto out; - } - dummy_sc->sc_page = NULL; + dummy_sc = kzalloc(sizeof(*dummy_sc), GFP_KERNEL); + if (!dummy_sc) + return -ENOMEM; - ret = seq_open(file, &sc_seq_ops); - if (ret) - goto out; + sd = __seq_open_private(file, &sc_seq_ops, sizeof(*sd)); + if (!sd) { + kfree(dummy_sc); + return -ENOMEM; + } - seq = file->private_data; - seq->private = sd; + sd->dbg_ctxt = ctxt; sd->dbg_sock = dummy_sc; - o2net_debug_add_sc(dummy_sc); - dummy_sc = NULL; + o2net_debug_add_sc(dummy_sc); -out: - kfree(dummy_sc); - return ret; + return 0; } static int sc_fop_release(struct inode *inode, struct file *file) @@ -453,16 +431,7 @@ static int sc_fop_release(struct inode *inode, struct file *file) static int stats_fop_open(struct inode *inode, struct file *file) { - struct o2net_sock_debug *sd; - - sd = kmalloc(sizeof(struct o2net_sock_debug), GFP_KERNEL); - if (sd == NULL) - return -ENOMEM; - - sd->dbg_ctxt = SHOW_SOCK_STATS; - sd->dbg_sock = NULL; - - return sc_common_open(file, sd); + return sc_common_open(file, SHOW_SOCK_STATS); } static const struct file_operations stats_seq_fops = { @@ -474,16 +443,7 @@ static const struct file_operations stats_seq_fops = { static int sc_fop_open(struct inode *inode, struct file *file) { - struct o2net_sock_debug *sd; - - sd = kmalloc(sizeof(struct o2net_sock_debug), GFP_KERNEL); - if (sd == NULL) - return -ENOMEM; - - sd->dbg_ctxt = SHOW_SOCK_CONTAINERS; - sd->dbg_sock = NULL; - - return sc_common_open(file, sd); + return sc_common_open(file, SHOW_SOCK_CONTAINERS); } static const struct file_operations sc_seq_fops = { diff --git a/fs/ocfs2/cluster/quorum.c b/fs/ocfs2/cluster/quorum.c index 1ec141e758d..62e8ec619b4 100644 --- a/fs/ocfs2/cluster/quorum.c +++ b/fs/ocfs2/cluster/quorum.c @@ -160,9 +160,18 @@ static void o2quo_make_decision(struct work_struct *work) } out: - spin_unlock(&qs->qs_lock); - if (fence) + if (fence) { + spin_unlock(&qs->qs_lock); o2quo_fence_self(); + } else { + mlog(ML_NOTICE, "not fencing this node, heartbeating: %d, " + "connected: %d, lowest: %d (%sreachable)\n", + qs->qs_heartbeating, qs->qs_connected, lowest_hb, + lowest_reachable ? "" : "un"); + spin_unlock(&qs->qs_lock); + + } + } static void o2quo_set_hold(struct o2quo_state *qs, u8 node) diff --git a/fs/ocfs2/cluster/tcp.c b/fs/ocfs2/cluster/tcp.c index 681691bc233..97de0fbd9f7 100644 --- a/fs/ocfs2/cluster/tcp.c +++ b/fs/ocfs2/cluster/tcp.c @@ -536,7 +536,7 @@ static void o2net_set_nn_state(struct o2net_node *nn, if (nn->nn_persistent_error || nn->nn_sc_valid) wake_up(&nn->nn_sc_wq); - if (!was_err && nn->nn_persistent_error) { + if (was_valid && !was_err && nn->nn_persistent_error) { o2quo_conn_err(o2net_num_from_nn(nn)); queue_delayed_work(o2net_wq, &nn->nn_still_up, msecs_to_jiffies(O2NET_QUORUM_DELAY_MS)); @@ -1480,6 +1480,14 @@ static int o2net_set_nodelay(struct socket *sock) return ret; } +static int o2net_set_usertimeout(struct socket *sock) +{ + int user_timeout = O2NET_TCP_USER_TIMEOUT; + + return kernel_setsockopt(sock, SOL_TCP, TCP_USER_TIMEOUT, + (char *)&user_timeout, sizeof(user_timeout)); +} + static void o2net_initialize_handshake(void) { o2net_hand->o2hb_heartbeat_timeout_ms = cpu_to_be32( @@ -1536,16 +1544,20 @@ static void o2net_idle_timer(unsigned long data) #endif printk(KERN_NOTICE "o2net: Connection to " SC_NODEF_FMT " has been " - "idle for %lu.%lu secs, shutting it down.\n", SC_NODEF_ARGS(sc), - msecs / 1000, msecs % 1000); + "idle for %lu.%lu secs.\n", + SC_NODEF_ARGS(sc), msecs / 1000, msecs % 1000); - /* - * Initialize the nn_timeout so that the next connection attempt - * will continue in o2net_start_connect. + /* idle timerout happen, don't shutdown the connection, but + * make fence decision. Maybe the connection can recover before + * the decision is made. */ atomic_set(&nn->nn_timeout, 1); + o2quo_conn_err(o2net_num_from_nn(nn)); + queue_delayed_work(o2net_wq, &nn->nn_still_up, + msecs_to_jiffies(O2NET_QUORUM_DELAY_MS)); + + o2net_sc_reset_idle_timer(sc); - o2net_sc_queue_work(sc, &sc->sc_shutdown_work); } static void o2net_sc_reset_idle_timer(struct o2net_sock_container *sc) @@ -1560,6 +1572,15 @@ static void o2net_sc_reset_idle_timer(struct o2net_sock_container *sc) static void o2net_sc_postpone_idle(struct o2net_sock_container *sc) { + struct o2net_node *nn = o2net_nn_from_num(sc->sc_node->nd_num); + + /* clear fence decision since the connection recover from timeout*/ + if (atomic_read(&nn->nn_timeout)) { + o2quo_conn_up(o2net_num_from_nn(nn)); + cancel_delayed_work(&nn->nn_still_up); + atomic_set(&nn->nn_timeout, 0); + } + /* Only push out an existing timer */ if (timer_pending(&sc->sc_idle_timeout)) o2net_sc_reset_idle_timer(sc); @@ -1580,7 +1601,15 @@ static void o2net_start_connect(struct work_struct *work) struct sockaddr_in myaddr = {0, }, remoteaddr = {0, }; int ret = 0, stop; unsigned int timeout; + unsigned int noio_flag; + /* + * sock_create allocates the sock with GFP_KERNEL. We must set + * per-process flag PF_MEMALLOC_NOIO so that all allocations done + * by this process are done as if GFP_NOIO was specified. So we + * are not reentering filesystem while doing memory reclaim. + */ + noio_flag = memalloc_noio_save(); /* if we're greater we initiate tx, otherwise we accept */ if (o2nm_this_node() <= o2net_num_from_nn(nn)) goto out; @@ -1650,6 +1679,12 @@ static void o2net_start_connect(struct work_struct *work) goto out; } + ret = o2net_set_usertimeout(sock); + if (ret) { + mlog(ML_ERROR, "set TCP_USER_TIMEOUT failed with %d\n", ret); + goto out; + } + o2net_register_callbacks(sc->sc_sock->sk, sc); spin_lock(&nn->nn_lock); @@ -1683,6 +1718,7 @@ out: if (mynode) o2nm_node_put(mynode); + memalloc_noio_restore(noio_flag); return; } @@ -1694,7 +1730,8 @@ static void o2net_connect_expired(struct work_struct *work) spin_lock(&nn->nn_lock); if (!nn->nn_sc_valid) { printk(KERN_NOTICE "o2net: No connection established with " - "node %u after %u.%u seconds, giving up.\n", + "node %u after %u.%u seconds, check network and" + " cluster configuration.\n", o2net_num_from_nn(nn), o2net_idle_timeout() / 1000, o2net_idle_timeout() % 1000); @@ -1808,6 +1845,15 @@ static int o2net_accept_one(struct socket *sock, int *more) struct o2nm_node *local_node = NULL; struct o2net_sock_container *sc = NULL; struct o2net_node *nn; + unsigned int noio_flag; + + /* + * sock_create_lite allocates the sock with GFP_KERNEL. We must set + * per-process flag PF_MEMALLOC_NOIO so that all allocations done + * by this process are done as if GFP_NOIO was specified. So we + * are not reentering filesystem while doing memory reclaim. + */ + noio_flag = memalloc_noio_save(); BUG_ON(sock == NULL); *more = 0; @@ -1831,6 +1877,12 @@ static int o2net_accept_one(struct socket *sock, int *more) goto out; } + ret = o2net_set_usertimeout(new_sock); + if (ret) { + mlog(ML_ERROR, "set TCP_USER_TIMEOUT failed with %d\n", ret); + goto out; + } + slen = sizeof(sin); ret = new_sock->ops->getname(new_sock, (struct sockaddr *) &sin, &slen, 1); @@ -1918,6 +1970,8 @@ out: o2nm_node_put(local_node); if (sc) sc_put(sc); + + memalloc_noio_restore(noio_flag); return ret; } @@ -2113,17 +2167,13 @@ int o2net_init(void) o2quo_init(); if (o2net_debugfs_init()) - return -ENOMEM; + goto out; o2net_hand = kzalloc(sizeof(struct o2net_handshake), GFP_KERNEL); o2net_keep_req = kzalloc(sizeof(struct o2net_msg), GFP_KERNEL); o2net_keep_resp = kzalloc(sizeof(struct o2net_msg), GFP_KERNEL); - if (!o2net_hand || !o2net_keep_req || !o2net_keep_resp) { - kfree(o2net_hand); - kfree(o2net_keep_req); - kfree(o2net_keep_resp); - return -ENOMEM; - } + if (!o2net_hand || !o2net_keep_req || !o2net_keep_resp) + goto out; o2net_hand->protocol_version = cpu_to_be64(O2NET_PROTOCOL_VERSION); o2net_hand->connector_id = cpu_to_be64(1); @@ -2148,6 +2198,14 @@ int o2net_init(void) } return 0; + +out: + kfree(o2net_hand); + kfree(o2net_keep_req); + kfree(o2net_keep_resp); + + o2quo_exit(); + return -ENOMEM; } void o2net_exit(void) diff --git a/fs/ocfs2/cluster/tcp.h b/fs/ocfs2/cluster/tcp.h index 5bada2a69b5..c571e849fda 100644 --- a/fs/ocfs2/cluster/tcp.h +++ b/fs/ocfs2/cluster/tcp.h @@ -63,6 +63,7 @@ typedef void (o2net_post_msg_handler_func)(int status, void *data, #define O2NET_KEEPALIVE_DELAY_MS_DEFAULT 2000 #define O2NET_IDLE_TIMEOUT_MS_DEFAULT 30000 +#define O2NET_TCP_USER_TIMEOUT 0x7fffffff /* TODO: figure this out.... */ static inline int o2net_link_down(int err, struct socket *sock) |