65 bool conn_all_vols_unconf(struct drbd_connection *connection)  in conn_all_vols_unconf()  argument
72 	idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {  in conn_all_vols_unconf()
105 enum drbd_role conn_highest_role(struct drbd_connection *connection)  in conn_highest_role()  argument
112 	idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {  in conn_highest_role()
121 enum drbd_role conn_highest_peer(struct drbd_connection *connection)  in conn_highest_peer()  argument
128 	idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {  in conn_highest_peer()
137 enum drbd_disk_state conn_highest_disk(struct drbd_connection *connection)  in conn_highest_disk()  argument
144 	idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {  in conn_highest_disk()
153 enum drbd_disk_state conn_lowest_disk(struct drbd_connection *connection)  in conn_lowest_disk()  argument
160 	idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {  in conn_lowest_disk()
169 enum drbd_disk_state conn_highest_pdsk(struct drbd_connection *connection)  in conn_highest_pdsk()  argument
176 	idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {  in conn_highest_pdsk()
185 enum drbd_conns conn_lowest_conn(struct drbd_connection *connection)  in conn_lowest_conn()  argument
192 	idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {  in conn_lowest_conn()
201 static bool no_peer_wf_report_params(struct drbd_connection *connection)  in no_peer_wf_report_params()  argument
208 	idr_for_each_entry(&connection->peer_devices, peer_device, vnr)  in no_peer_wf_report_params()
218 static void wake_up_all_devices(struct drbd_connection *connection)  in wake_up_all_devices()  argument
224 	idr_for_each_entry(&connection->peer_devices, peer_device, vnr)  in wake_up_all_devices()
312 			rv = is_valid_soft_transition(os, ns, first_peer_device(device)->connection);  in _req_st_cond()
358 			rv = is_valid_soft_transition(os, ns, first_peer_device(device)->connection);  in drbd_req_state()
392 		D_ASSERT(device, current != first_peer_device(device)->connection->worker.task);  in drbd_req_state()
525 static void conn_pr_state_change(struct drbd_connection *connection, union drbd_state os, union drb…  in conn_pr_state_change()  argument
539 		drbd_info(connection, "%s\n", pb);  in conn_pr_state_change()
564 	nc = rcu_dereference(first_peer_device(device)->connection->net_conf);  in is_valid_state()
569 			else if (conn_highest_peer(first_peer_device(device)->connection) == R_PRIMARY)  in is_valid_state()
610 		  first_peer_device(device)->connection->agreed_pro_version < 88)  in is_valid_state()
637 …valid_soft_transition(union drbd_state os, union drbd_state ns, struct drbd_connection *connection)  in is_valid_soft_transition()  argument
662 	if (test_bit(STATE_SENT, &connection->flags) &&  in is_valid_soft_transition()
943 	if (first_peer_device(device)->connection->agreed_pro_version < 90)  in set_ov_position()
981 	struct drbd_connection *connection = peer_device ? peer_device->connection : NULL;  in __drbd_set_state()  local
1007 				rv = is_valid_soft_transition(os, ns, connection);  in __drbd_set_state()
1009 			rv = is_valid_soft_transition(os, ns, connection);  in __drbd_set_state()
1026 		conn_pr_state_change(connection, os, ns,  in __drbd_set_state()
1053 		start_new_tl_epoch(connection);  in __drbd_set_state()
1060 	    no_peer_wf_report_params(connection)) {  in __drbd_set_state()
1061 		clear_bit(STATE_SENT, &connection->flags);  in __drbd_set_state()
1062 		wake_up_all_devices(connection);  in __drbd_set_state()
1067 	wake_up(&connection->ping_wait);  in __drbd_set_state()
1155 		drbd_thread_stop_nowait(&connection->receiver);  in __drbd_set_state()
1159 		drbd_thread_stop_nowait(&connection->receiver);  in __drbd_set_state()
1164 		drbd_thread_restart_nowait(&connection->receiver);  in __drbd_set_state()
1169 		connection->connect_cnt++;  in __drbd_set_state()
1187 		drbd_queue_work(&connection->sender_work,  in __drbd_set_state()
1234 	D_ASSERT(device, current == first_peer_device(device)->connection->worker.task);  in drbd_bitmap_io_from_worker()
1260 	struct drbd_connection *connection = peer_device ? peer_device->connection : NULL;  in after_state_ch()  local
1288 		if (os.conn < C_CONNECTED && conn_lowest_conn(connection) >= C_CONNECTED)  in after_state_ch()
1292 		    conn_lowest_disk(connection) > D_NEGOTIATING)  in after_state_ch()
1296 			_tl_restart(connection, what);  in after_state_ch()
1297 			_conn_request_state(connection,  in after_state_ch()
1307 		if (resource->susp_fen && conn_lowest_conn(connection) >= C_CONNECTED) {  in after_state_ch()
1313 			idr_for_each_entry(&connection->peer_devices, peer_device, vnr)  in after_state_ch()
1316 			_tl_restart(connection, RESEND);  in after_state_ch()
1317 			_conn_request_state(connection,  in after_state_ch()
1331 	    connection->agreed_pro_version >= 96 && get_ldev(device)) {  in after_state_ch()
1574 	struct drbd_connection *connection;  member
1581 	struct drbd_connection *connection = acscw->connection;  in w_after_conn_state_ch()  local
1591 		drbd_thread_start(&connection->receiver);  in w_after_conn_state_ch()
1596 		mutex_lock(&connection->resource->conf_update);  in w_after_conn_state_ch()
1597 		old_conf = connection->net_conf;  in w_after_conn_state_ch()
1598 		connection->my_addr_len = 0;  in w_after_conn_state_ch()
1599 		connection->peer_addr_len = 0;  in w_after_conn_state_ch()
1600 		RCU_INIT_POINTER(connection->net_conf, NULL);  in w_after_conn_state_ch()
1601 		conn_free_crypto(connection);  in w_after_conn_state_ch()
1602 		mutex_unlock(&connection->resource->conf_update);  in w_after_conn_state_ch()
1612 			idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {  in w_after_conn_state_ch()
1620 			spin_lock_irq(&connection->resource->req_lock);  in w_after_conn_state_ch()
1621 			_tl_restart(connection, CONNECTION_LOST_WHILE_PENDING);  in w_after_conn_state_ch()
1622 			_conn_request_state(connection,  in w_after_conn_state_ch()
1626 			spin_unlock_irq(&connection->resource->req_lock);  in w_after_conn_state_ch()
1629 	kref_put(&connection->kref, drbd_destroy_connection);  in w_after_conn_state_ch()
1631 	conn_md_sync(connection);  in w_after_conn_state_ch()
1636 static void conn_old_common_state(struct drbd_connection *connection, union drbd_state *pcs, enum c…  in conn_old_common_state()  argument
1644 		  .conn = connection->cstate,  in conn_old_common_state()
1650 	idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {  in conn_old_common_state()
1683 conn_is_valid_transition(struct drbd_connection *connection, union drbd_state mask, union drbd_stat…  in conn_is_valid_transition()  argument
1692 	idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {  in conn_is_valid_transition()
1709 					rv = is_valid_soft_transition(os, ns, connection);  in conn_is_valid_transition()
1711 				rv = is_valid_soft_transition(os, ns, connection);  in conn_is_valid_transition()
1726 conn_set_state(struct drbd_connection *connection, union drbd_state mask, union drbd_state val,  in conn_set_state()  argument
1745 		if (connection->cstate != C_WF_REPORT_PARAMS && val.conn == C_WF_REPORT_PARAMS)  in conn_set_state()
1746 			connection->last_reconnect_jif = jiffies;  in conn_set_state()
1748 		connection->cstate = val.conn;  in conn_set_state()
1752 	idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {  in conn_set_state()
1791 	ns_min.susp = ns_max.susp = connection->resource->susp;  in conn_set_state()
1792 	ns_min.susp_nod = ns_max.susp_nod = connection->resource->susp_nod;  in conn_set_state()
1793 	ns_min.susp_fen = ns_max.susp_fen = connection->resource->susp_fen;  in conn_set_state()
1800 _conn_rq_cond(struct drbd_connection *connection, union drbd_state mask, union drbd_state val)  in _conn_rq_cond()  argument
1804 	if (test_and_clear_bit(CONN_WD_ST_CHG_OKAY, &connection->flags))  in _conn_rq_cond()
1807 	if (test_and_clear_bit(CONN_WD_ST_CHG_FAIL, &connection->flags))  in _conn_rq_cond()
1810 	err = conn_is_valid_transition(connection, mask, val, 0);  in _conn_rq_cond()
1811 	if (err == SS_SUCCESS && connection->cstate == C_WF_REPORT_PARAMS)  in _conn_rq_cond()
1818 _conn_request_state(struct drbd_connection *connection, union drbd_state mask, union drbd_state val,  in _conn_request_state()  argument
1823 	enum drbd_conns oc = connection->cstate;  in _conn_request_state()
1833 	rv = conn_is_valid_transition(connection, mask, val, flags);  in _conn_request_state()
1843 		spin_unlock_irq(&connection->resource->req_lock);  in _conn_request_state()
1844 		mutex_lock(&connection->cstate_mutex);  in _conn_request_state()
1847 		set_bit(CONN_WD_ST_CHG_REQ, &connection->flags);  in _conn_request_state()
1848 		if (conn_send_state_req(connection, mask, val)) {  in _conn_request_state()
1850 			clear_bit(CONN_WD_ST_CHG_REQ, &connection->flags);  in _conn_request_state()
1857 			set_bit(DISCONNECT_SENT, &connection->flags);  in _conn_request_state()
1862 		spin_lock_irq(&connection->resource->req_lock);  in _conn_request_state()
1863 		wait_event_lock_irq(connection->ping_wait,  in _conn_request_state()
1864 				(rv = _conn_rq_cond(connection, mask, val)),  in _conn_request_state()
1865 				connection->resource->req_lock);  in _conn_request_state()
1866 		clear_bit(CONN_WD_ST_CHG_REQ, &connection->flags);  in _conn_request_state()
1871 	conn_old_common_state(connection, &os, &flags);  in _conn_request_state()
1873 	conn_set_state(connection, mask, val, &ns_min, &ns_max, flags);  in _conn_request_state()
1874 	conn_pr_state_change(connection, os, ns_max, flags);  in _conn_request_state()
1883 		kref_get(&connection->kref);  in _conn_request_state()
1884 		acscw->connection = connection;  in _conn_request_state()
1885 		drbd_queue_work(&connection->sender_work, &acscw->w);  in _conn_request_state()
1887 		drbd_err(connection, "Could not kmalloc an acscw\n");  in _conn_request_state()
1894 		spin_unlock_irq(&connection->resource->req_lock);  in _conn_request_state()
1896 		mutex_unlock(&connection->cstate_mutex);  in _conn_request_state()
1897 		spin_lock_irq(&connection->resource->req_lock);  in _conn_request_state()
1900 		drbd_err(connection, "State change failed: %s\n", drbd_set_st_err_str(rv));  in _conn_request_state()
1901 		drbd_err(connection, " mask = 0x%x val = 0x%x\n", mask.i, val.i);  in _conn_request_state()
1902 		drbd_err(connection, " old_conn:%s wanted_conn:%s\n", drbd_conn_str(oc), drbd_conn_str(val.conn));  in _conn_request_state()
1908 conn_request_state(struct drbd_connection *connection, union drbd_state mask, union drbd_state val,  in conn_request_state()  argument
1913 	spin_lock_irq(&connection->resource->req_lock);  in conn_request_state()
1914 	rv = _conn_request_state(connection, mask, val, flags);  in conn_request_state()
1915 	spin_unlock_irq(&connection->resource->req_lock);  in conn_request_state()