161  * @connection:	DRBD connection.
167  * termination of the connection.
169 void tl_release(struct drbd_connection *connection, unsigned int barrier_nr,  in tl_release()  argument
177 	spin_lock_irq(&connection->resource->req_lock);  in tl_release()
181 	list_for_each_entry(r, &connection->transfer_log, tl_requests) {  in tl_release()
206 		drbd_err(connection, "BAD! BarrierAck #%u received, but no epoch in tl!?\n",  in tl_release()
211 		drbd_err(connection, "BAD! BarrierAck #%u received, expected #%u!\n",  in tl_release()
217 		drbd_err(connection, "BAD! BarrierAck #%u received with n_writes=%u, expected n_writes=%u!\n",  in tl_release()
226 	list_for_each_entry(req, &connection->transfer_log, tl_requests)  in tl_release()
231 	req = list_prepare_entry(tmp, &connection->transfer_log, tl_requests);  in tl_release()
232 	list_for_each_entry_safe_from(req, r, &connection->transfer_log, tl_requests) {  in tl_release()
236 		peer_device = conn_peer_device(connection, req->device->vnr);  in tl_release()
239 	spin_unlock_irq(&connection->resource->req_lock);  in tl_release()
244 	spin_unlock_irq(&connection->resource->req_lock);  in tl_release()
245 	conn_request_state(connection, NS(conn, C_PROTOCOL_ERROR), CS_HARD);  in tl_release()
251  * @connection:	DRBD connection to operate on.
258 void _tl_restart(struct drbd_connection *connection, enum drbd_req_event what)  in _tl_restart()  argument
263 	list_for_each_entry_safe(req, r, &connection->transfer_log, tl_requests) {  in _tl_restart()
264 		peer_device = conn_peer_device(connection, req->device->vnr);  in _tl_restart()
269 void tl_restart(struct drbd_connection *connection, enum drbd_req_event what)  in tl_restart()  argument
271 	spin_lock_irq(&connection->resource->req_lock);  in tl_restart()
272 	_tl_restart(connection, what);  in tl_restart()
273 	spin_unlock_irq(&connection->resource->req_lock);  in tl_restart()
278  * @connection:	DRBD connection.
280  * This is called after the connection to the peer was lost. The storage covered
284 void tl_clear(struct drbd_connection *connection)  in tl_clear()  argument
286 	tl_restart(connection, CONNECTION_LOST_WHILE_PENDING);  in tl_clear()
295 	struct drbd_connection *connection = first_peer_device(device)->connection;  in tl_abort_disk_io()  local
298 	spin_lock_irq(&connection->resource->req_lock);  in tl_abort_disk_io()
299 	list_for_each_entry_safe(req, r, &connection->transfer_log, tl_requests) {  in tl_abort_disk_io()
306 	spin_unlock_irq(&connection->resource->req_lock);  in tl_abort_disk_io()
354 	if (thi->connection)  in drbd_thread_setup()
355 		kref_put(&thi->connection->kref, drbd_destroy_connection);  in drbd_thread_setup()
369 	thi->connection = NULL;  in drbd_thread_init()
396 		if (thi->connection)  in drbd_thread_start()
397 			kref_get(&thi->connection->kref);  in drbd_thread_start()
411 			if (thi->connection)  in drbd_thread_start()
412 				kref_put(&thi->connection->kref, drbd_destroy_connection);  in drbd_thread_start()
474 int conn_lowest_minor(struct drbd_connection *connection)  in conn_lowest_minor()  argument
480 	peer_device = idr_get_next(&connection->peer_devices, &vnr);  in conn_lowest_minor()
554 unsigned int drbd_header_size(struct drbd_connection *connection)  in drbd_header_size()  argument
556 	if (connection->agreed_pro_version >= 100) {  in drbd_header_size()
594 static unsigned int prepare_header(struct drbd_connection *connection, int vnr,  in prepare_header()  argument
597 	if (connection->agreed_pro_version >= 100)  in prepare_header()
599 	else if (connection->agreed_pro_version >= 95 &&  in prepare_header()
606 static void *__conn_prepare_command(struct drbd_connection *connection,  in __conn_prepare_command()  argument
611 	return sock->sbuf + drbd_header_size(connection);  in __conn_prepare_command()
614 void *conn_prepare_command(struct drbd_connection *connection, struct drbd_socket *sock)  in conn_prepare_command()  argument
619 	p = __conn_prepare_command(connection, sock);  in conn_prepare_command()
628 	return conn_prepare_command(peer_device->connection, sock);  in drbd_prepare_command()
631 static int __send_command(struct drbd_connection *connection, int vnr,  in __send_command()  argument
648 	header_size += prepare_header(connection, vnr, sock->sbuf, cmd,  in __send_command()
650 	err = drbd_send_all(connection, sock->socket, sock->sbuf, header_size,  in __send_command()
653 		err = drbd_send_all(connection, sock->socket, data, size, 0);  in __send_command()
662 static int __conn_send_command(struct drbd_connection *connection, struct drbd_socket *sock,  in __conn_send_command()  argument
666 	return __send_command(connection, 0, sock, cmd, header_size, data, size);  in __conn_send_command()
669 int conn_send_command(struct drbd_connection *connection, struct drbd_socket *sock,  in conn_send_command()  argument
675 	err = __conn_send_command(connection, sock, cmd, header_size, data, size);  in conn_send_command()
686 	err = __send_command(peer_device->connection, peer_device->device->vnr,  in drbd_send_command()
692 int drbd_send_ping(struct drbd_connection *connection)  in drbd_send_ping()  argument
696 	sock = &connection->meta;  in drbd_send_ping()
697 	if (!conn_prepare_command(connection, sock))  in drbd_send_ping()
699 	return conn_send_command(connection, sock, P_PING, 0, NULL, 0);  in drbd_send_ping()
702 int drbd_send_ping_ack(struct drbd_connection *connection)  in drbd_send_ping_ack()  argument
706 	sock = &connection->meta;  in drbd_send_ping_ack()
707 	if (!conn_prepare_command(connection, sock))  in drbd_send_ping_ack()
709 	return conn_send_command(connection, sock, P_PING_ACK, 0, NULL, 0);  in drbd_send_ping_ack()
717 	const int apv = peer_device->connection->agreed_pro_version;  in drbd_send_sync_param()
722 	sock = &peer_device->connection->data;  in drbd_send_sync_param()
728 	nc = rcu_dereference(peer_device->connection->net_conf);  in drbd_send_sync_param()
767 int __drbd_send_protocol(struct drbd_connection *connection, enum drbd_packet cmd)  in __drbd_send_protocol()  argument
774 	sock = &connection->data;  in __drbd_send_protocol()
775 	p = __conn_prepare_command(connection, sock);  in __drbd_send_protocol()
780 	nc = rcu_dereference(connection->net_conf);  in __drbd_send_protocol()
782 	if (nc->tentative && connection->agreed_pro_version < 92) {  in __drbd_send_protocol()
784 		drbd_err(connection, "--dry-run is not supported by peer");  in __drbd_send_protocol()
789 	if (connection->agreed_pro_version >= 87)  in __drbd_send_protocol()
804 	if (connection->agreed_pro_version >= 87)  in __drbd_send_protocol()
808 	return __conn_send_command(connection, sock, cmd, size, NULL, 0);  in __drbd_send_protocol()
811 int drbd_send_protocol(struct drbd_connection *connection)  in drbd_send_protocol()  argument
815 	mutex_lock(&connection->data.mutex);  in drbd_send_protocol()
816 	err = __drbd_send_protocol(connection, P_PROTOCOL);  in drbd_send_protocol()
817 	mutex_unlock(&connection->data.mutex);  in drbd_send_protocol()
832 	sock = &peer_device->connection->data;  in _drbd_send_uuids()
846 	uuid_flags |= rcu_dereference(peer_device->connection->net_conf)->discard_my_data ? 1 : 0;  in _drbd_send_uuids()
902 	sock = &peer_device->connection->data;  in drbd_gen_and_send_sync_uuid()
920 	sock = &peer_device->connection->data;  in drbd_send_sizes()
926 	if (peer_device->connection->agreed_features & DRBD_FF_WSAME)  in drbd_send_sizes()
969 	if (peer_device->connection->agreed_pro_version <= 94)  in drbd_send_sizes()
971 	else if (peer_device->connection->agreed_pro_version < 100)  in drbd_send_sizes()
996 	sock = &peer_device->connection->data;  in drbd_send_current_state()
1019 	sock = &peer_device->connection->data;  in drbd_send_state()
1032 	sock = &peer_device->connection->data;  in drbd_send_state_req()
1041 int conn_send_state_req(struct drbd_connection *connection, union drbd_state mask, union drbd_state…  in conn_send_state_req()  argument
1047 	cmd = connection->agreed_pro_version < 100 ? P_STATE_CHG_REQ : P_CONN_ST_CHG_REQ;  in conn_send_state_req()
1048 	sock = &connection->data;  in conn_send_state_req()
1049 	p = conn_prepare_command(connection, sock);  in conn_send_state_req()
1054 	return conn_send_command(connection, sock, cmd, sizeof(*p), NULL, 0);  in conn_send_state_req()
1062 	sock = &peer_device->connection->meta;  in drbd_send_sr_reply()
1070 void conn_send_sr_reply(struct drbd_connection *connection, enum drbd_state_rv retcode)  in conn_send_sr_reply()  argument
1074 …enum drbd_packet cmd = connection->agreed_pro_version < 100 ? P_STATE_CHG_REPLY : P_CONN_ST_CHG_RE…  in conn_send_sr_reply()
1076 	sock = &connection->meta;  in conn_send_sr_reply()
1077 	p = conn_prepare_command(connection, sock);  in conn_send_sr_reply()
1080 		conn_send_command(connection, sock, cmd, sizeof(*p), NULL, 0);  in conn_send_sr_reply()
1116 	use_rle = rcu_dereference(first_peer_device(device)->connection->net_conf)->use_rle;  in fill_bitmap_rle_bits()
1118 	if (!use_rle || first_peer_device(device)->connection->agreed_pro_version < 90)  in fill_bitmap_rle_bits()
1208 	struct drbd_socket *sock = &peer_device->connection->data;  in send_bitmap_rle_or_plain()
1209 	unsigned int header_size = drbd_header_size(peer_device->connection);  in send_bitmap_rle_or_plain()
1220 		err = __send_command(peer_device->connection, device->vnr, sock,  in send_bitmap_rle_or_plain()
1241 		err = __send_command(peer_device->connection, device->vnr, sock, P_BITMAP,  in send_bitmap_rle_or_plain()
1303 	struct drbd_socket *sock = &peer_device->connection->data;  in drbd_send_bitmap()
1313 void drbd_send_b_ack(struct drbd_connection *connection, u32 barrier_nr, u32 set_size)  in drbd_send_b_ack()  argument
1318 	if (connection->cstate < C_WF_REPORT_PARAMS)  in drbd_send_b_ack()
1321 	sock = &connection->meta;  in drbd_send_b_ack()
1322 	p = conn_prepare_command(connection, sock);  in drbd_send_b_ack()
1327 	conn_send_command(connection, sock, P_BARRIER_ACK, sizeof(*p), NULL, 0);  in drbd_send_b_ack()
1347 	sock = &peer_device->connection->meta;  in _drbd_send_ack()
1364 	if (peer_device->connection->peer_integrity_tfm)  in drbd_send_ack_dp()
1365 		data_size -= crypto_shash_digestsize(peer_device->connection->peer_integrity_tfm);  in drbd_send_ack_dp()
1408 	sock = &peer_device->connection->data;  in drbd_send_rs_deallocated()
1424 	sock = &peer_device->connection->data;  in drbd_send_drequest()
1442 	sock = &peer_device->connection->data;  in drbd_send_drequest_csum()
1457 	sock = &peer_device->connection->data;  in drbd_send_ov_request()
1469  * true if we think connection is dead
1471 static int we_should_drop_the_connection(struct drbd_connection *connection, struct socket *sock)  in we_should_drop_the_connection()  argument
1476 	drop_it =   connection->meta.socket == sock  in we_should_drop_the_connection()
1477 		|| !connection->ack_receiver.task  in we_should_drop_the_connection()
1478 		|| get_t_state(&connection->ack_receiver) != RUNNING  in we_should_drop_the_connection()
1479 		|| connection->cstate < C_WF_REPORT_PARAMS;  in we_should_drop_the_connection()
1484 	drop_it = !--connection->ko_count;  in we_should_drop_the_connection()
1486 		drbd_err(connection, "[%s/%d] sock_sendmsg time expired, ko = %u\n",  in we_should_drop_the_connection()
1487 			 current->comm, current->pid, connection->ko_count);  in we_should_drop_the_connection()
1488 		request_ping(connection);  in we_should_drop_the_connection()
1494 static void drbd_update_congested(struct drbd_connection *connection)  in drbd_update_congested()  argument
1496 	struct sock *sk = connection->data.socket->sk;  in drbd_update_congested()
1498 		set_bit(NET_CONGESTED, &connection->flags);  in drbd_update_congested()
1529 	socket = peer_device->connection->data.socket;  in _drbd_no_send_page()
1531 	err = drbd_send_all(peer_device->connection, socket, addr, size, msg_flags);  in _drbd_no_send_page()
1541 	struct socket *socket = peer_device->connection->data.socket;  in _drbd_send_page()
1556 	drbd_update_congested(peer_device->connection);  in _drbd_send_page()
1566 				if (we_should_drop_the_connection(peer_device->connection, socket))  in _drbd_send_page()
1579 	clear_bit(NET_CONGESTED, &peer_device->connection->flags);  in _drbd_send_page()
1645 static u32 bio_flags_to_wire(struct drbd_connection *connection,  in bio_flags_to_wire()  argument
1648 	if (connection->agreed_pro_version >= 95)  in bio_flags_to_wire()
1654 			  ((connection->agreed_features & DRBD_FF_WZEROES) ?  in bio_flags_to_wire()
1675 	sock = &peer_device->connection->data;  in drbd_send_dblock()
1677 	digest_size = peer_device->connection->integrity_tfm ?  in drbd_send_dblock()
1678 		      crypto_shash_digestsize(peer_device->connection->integrity_tfm) : 0;  in drbd_send_dblock()
1685 	dp_flags = bio_flags_to_wire(peer_device->connection, req->master_bio);  in drbd_send_dblock()
1689 	if (peer_device->connection->agreed_pro_version >= 100) {  in drbd_send_dblock()
1704 		err = __send_command(peer_device->connection, device->vnr, sock, cmd, sizeof(*t), NULL, 0);  in drbd_send_dblock()
1712 		drbd_csum_bio(peer_device->connection->integrity_tfm, req->master_bio, digest_out);  in drbd_send_dblock()
1713 	err = __send_command(peer_device->connection, device->vnr, sock, P_DATA,  in drbd_send_dblock()
1737 			drbd_csum_bio(peer_device->connection->integrity_tfm, req->master_bio, digest);  in drbd_send_dblock()
1766 	sock = &peer_device->connection->data;  in drbd_send_block()
1769 	digest_size = peer_device->connection->integrity_tfm ?  in drbd_send_block()
1770 		      crypto_shash_digestsize(peer_device->connection->integrity_tfm) : 0;  in drbd_send_block()
1779 		drbd_csum_ee(peer_device->connection->integrity_tfm, peer_req, p + 1);  in drbd_send_block()
1780 …err = __send_command(peer_device->connection, device->vnr, sock, cmd, sizeof(*p) + digest_size, NU…  in drbd_send_block()
1793 	sock = &peer_device->connection->data;  in drbd_send_out_of_sync()
1818 int drbd_send(struct drbd_connection *connection, struct socket *sock,  in drbd_send()  argument
1832 	if (sock == connection->data.socket) {  in drbd_send()
1834 		connection->ko_count = rcu_dereference(connection->net_conf)->ko_count;  in drbd_send()
1836 		drbd_update_congested(connection);  in drbd_send()
1841 			if (we_should_drop_the_connection(connection, sock))  in drbd_send()
1855 	if (sock == connection->data.socket)  in drbd_send()
1856 		clear_bit(NET_CONGESTED, &connection->flags);  in drbd_send()
1860 			drbd_err(connection, "%s_sendmsg returned %d\n",  in drbd_send()
1861 				 sock == connection->meta.socket ? "msock" : "sock",  in drbd_send()
1863 			conn_request_state(connection, NS(conn, C_BROKEN_PIPE), CS_HARD);  in drbd_send()
1865 			conn_request_state(connection, NS(conn, C_TIMEOUT), CS_HARD);  in drbd_send()
1876 int drbd_send_all(struct drbd_connection *connection, struct socket *sock, void *buffer,  in drbd_send_all()  argument
1881 	err = drbd_send(connection, sock, buffer, size, msg_flags);  in drbd_send_all()
1931 				&first_peer_device(device)->connection->sender_work,  in drbd_queue_unplug()
2022 	if (first_peer_device(device)->connection->receiver.t_state != NONE)  in drbd_device_cleanup()
2024 				first_peer_device(device)->connection->receiver.t_state);  in drbd_device_cleanup()
2042 	D_ASSERT(device, first_peer_device(device)->connection->net_conf == NULL);  in drbd_device_cleanup()
2062 	D_ASSERT(device, list_empty(&first_peer_device(device)->connection->sender_work.q));  in drbd_device_cleanup()
2225 	/* not for_each_connection(connection, resource):  in drbd_destroy_device()
2229 		kref_put(&peer_device->connection->kref, drbd_destroy_connection);  in drbd_destroy_device()
2330 	struct drbd_connection *connection, *tmp;  in drbd_free_resource()  local
2332 	for_each_connection_safe(connection, tmp, resource) {  in drbd_free_resource()
2333 		list_del(&connection->connections);  in drbd_free_resource()
2334 		drbd_debugfs_connection_cleanup(connection);  in drbd_free_resource()
2335 		kref_put(&connection->kref, drbd_destroy_connection);  in drbd_free_resource()
2437 	struct drbd_connection *connection;  in conn_get_by_addrs()  local
2441 		for_each_connection_rcu(connection, resource) {  in conn_get_by_addrs()
2442 			if (connection->my_addr_len == my_addr_len &&  in conn_get_by_addrs()
2443 			    connection->peer_addr_len == peer_addr_len &&  in conn_get_by_addrs()
2444 			    !memcmp(&connection->my_addr, my_addr, my_addr_len) &&  in conn_get_by_addrs()
2445 			    !memcmp(&connection->peer_addr, peer_addr, peer_addr_len)) {  in conn_get_by_addrs()
2446 				kref_get(&connection->kref);  in conn_get_by_addrs()
2451 	connection = NULL;  in conn_get_by_addrs()
2454 	return connection;  in conn_get_by_addrs()
2474 void conn_free_crypto(struct drbd_connection *connection)  in conn_free_crypto()  argument
2476 	drbd_free_sock(connection);  in conn_free_crypto()
2478 	crypto_free_shash(connection->csums_tfm);  in conn_free_crypto()
2479 	crypto_free_shash(connection->verify_tfm);  in conn_free_crypto()
2480 	crypto_free_shash(connection->cram_hmac_tfm);  in conn_free_crypto()
2481 	crypto_free_shash(connection->integrity_tfm);  in conn_free_crypto()
2482 	crypto_free_shash(connection->peer_integrity_tfm);  in conn_free_crypto()
2483 	kfree(connection->int_dig_in);  in conn_free_crypto()
2484 	kfree(connection->int_dig_vv);  in conn_free_crypto()
2486 	connection->csums_tfm = NULL;  in conn_free_crypto()
2487 	connection->verify_tfm = NULL;  in conn_free_crypto()
2488 	connection->cram_hmac_tfm = NULL;  in conn_free_crypto()
2489 	connection->integrity_tfm = NULL;  in conn_free_crypto()
2490 	connection->peer_integrity_tfm = NULL;  in conn_free_crypto()
2491 	connection->int_dig_in = NULL;  in conn_free_crypto()
2492 	connection->int_dig_vv = NULL;  in conn_free_crypto()
2497 	struct drbd_connection *connection;  in set_resource_options()  local
2533 		for_each_connection_rcu(connection, resource) {  in set_resource_options()
2534 			connection->receiver.reset_cpu_mask = 1;  in set_resource_options()
2535 			connection->ack_receiver.reset_cpu_mask = 1;  in set_resource_options()
2536 			connection->worker.reset_cpu_mask = 1;  in set_resource_options()
2582 	struct drbd_connection *connection;  in conn_create()  local
2584 	connection = kzalloc(sizeof(struct drbd_connection), GFP_KERNEL);  in conn_create()
2585 	if (!connection)  in conn_create()
2588 	if (drbd_alloc_socket(&connection->data))  in conn_create()
2590 	if (drbd_alloc_socket(&connection->meta))  in conn_create()
2593 	connection->current_epoch = kzalloc(sizeof(struct drbd_epoch), GFP_KERNEL);  in conn_create()
2594 	if (!connection->current_epoch)  in conn_create()
2597 	INIT_LIST_HEAD(&connection->transfer_log);  in conn_create()
2599 	INIT_LIST_HEAD(&connection->current_epoch->list);  in conn_create()
2600 	connection->epochs = 1;  in conn_create()
2601 	spin_lock_init(&connection->epoch_lock);  in conn_create()
2603 	connection->send.seen_any_write_yet = false;  in conn_create()
2604 	connection->send.current_epoch_nr = 0;  in conn_create()
2605 	connection->send.current_epoch_writes = 0;  in conn_create()
2611 	connection->cstate = C_STANDALONE;  in conn_create()
2612 	mutex_init(&connection->cstate_mutex);  in conn_create()
2613 	init_waitqueue_head(&connection->ping_wait);  in conn_create()
2614 	idr_init(&connection->peer_devices);  in conn_create()
2616 	drbd_init_workqueue(&connection->sender_work);  in conn_create()
2617 	mutex_init(&connection->data.mutex);  in conn_create()
2618 	mutex_init(&connection->meta.mutex);  in conn_create()
2620 	drbd_thread_init(resource, &connection->receiver, drbd_receiver, "receiver");  in conn_create()
2621 	connection->receiver.connection = connection;  in conn_create()
2622 	drbd_thread_init(resource, &connection->worker, drbd_worker, "worker");  in conn_create()
2623 	connection->worker.connection = connection;  in conn_create()
2624 	drbd_thread_init(resource, &connection->ack_receiver, drbd_ack_receiver, "ack_recv");  in conn_create()
2625 	connection->ack_receiver.connection = connection;  in conn_create()
2627 	kref_init(&connection->kref);  in conn_create()
2629 	connection->resource = resource;  in conn_create()
2635 	list_add_tail_rcu(&connection->connections, &resource->connections);  in conn_create()
2636 	drbd_debugfs_connection_add(connection);  in conn_create()
2637 	return connection;  in conn_create()
2643 	kfree(connection->current_epoch);  in conn_create()
2644 	drbd_free_socket(&connection->meta);  in conn_create()
2645 	drbd_free_socket(&connection->data);  in conn_create()
2646 	kfree(connection);  in conn_create()
2652 	struct drbd_connection *connection = container_of(kref, struct drbd_connection, kref);  in drbd_destroy_connection()  local
2653 	struct drbd_resource *resource = connection->resource;  in drbd_destroy_connection()
2655 	if (atomic_read(&connection->current_epoch->epoch_size) !=  0)  in drbd_destroy_connection()
2656 		drbd_err(connection, "epoch_size:%d\n", atomic_read(&connection->current_epoch->epoch_size));  in drbd_destroy_connection()
2657 	kfree(connection->current_epoch);  in drbd_destroy_connection()
2659 	idr_destroy(&connection->peer_devices);  in drbd_destroy_connection()
2661 	drbd_free_socket(&connection->meta);  in drbd_destroy_connection()
2662 	drbd_free_socket(&connection->data);  in drbd_destroy_connection()
2663 	kfree(connection->int_dig_in);  in drbd_destroy_connection()
2664 	kfree(connection->int_dig_vv);  in drbd_destroy_connection()
2665 	kfree(connection);  in drbd_destroy_connection()
2686 	struct drbd_connection *connection, *n;  in drbd_create_device()  local
2761 	for_each_connection(connection, resource) {  in drbd_create_device()
2765 		peer_device->connection = connection;  in drbd_create_device()
2771 		id = idr_alloc(&connection->peer_devices, peer_device, vnr, vnr + 1, GFP_KERNEL);  in drbd_create_device()
2777 		kref_get(&connection->kref);  in drbd_create_device()
2790 	/* inherit the connection state */  in drbd_create_device()
2805 	for_each_connection_safe(connection, n, resource) {  in drbd_create_device()
2806 		peer_device = idr_remove(&connection->peer_devices, vnr);  in drbd_create_device()
2808 			kref_put(&connection->kref, drbd_destroy_connection);  in drbd_create_device()
2833 	struct drbd_connection *connection;  in drbd_delete_device()  local
2840 	for_each_connection(connection, resource) {  in drbd_delete_device()
2841 		idr_remove(&connection->peer_devices, device->vnr);  in drbd_delete_device()
2943 void drbd_free_sock(struct drbd_connection *connection)  in drbd_free_sock()  argument
2945 	if (connection->data.socket)  in drbd_free_sock()
2946 		drbd_free_one_sock(&connection->data);  in drbd_free_sock()
2947 	if (connection->meta.socket)  in drbd_free_sock()
2948 		drbd_free_one_sock(&connection->meta);  in drbd_free_sock()
2953 void conn_md_sync(struct drbd_connection *connection)  in conn_md_sync()  argument
2959 	idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {  in conn_md_sync()
3512 	D_ASSERT(device, current == peer_device->connection->worker.task);  in drbd_queue_bitmap_io()
3533 			drbd_queue_work(&peer_device->connection->sender_work,  in drbd_queue_bitmap_io()
3558 	D_ASSERT(device, current != first_peer_device(device)->connection->worker.task);  in drbd_bitmap_io()
3686 	nc = rcu_dereference(first_peer_device(device)->connection->net_conf);  in drbd_wait_misc()