112 	drbd_queue_work(&peer_device->connection->sender_work, &peer_req->w);  in drbd_endio_read_sec_final()
166 	wake_asender(peer_device->connection);  in drbd_endio_write_sec_final()
335 	digest_size = crypto_hash_digestsize(peer_device->connection->csums_tfm);  in w_e_send_csum()
340 		drbd_csum_ee(peer_device->connection->csums_tfm, peer_req, digest);  in w_e_send_csum()
429 		&first_peer_device(device)->connection->sender_work,  in resync_timer_fn()
567 	struct drbd_connection *const connection = peer_device ? peer_device->connection : NULL;  in make_resync_request()  local
602 		mutex_lock(&connection->data.mutex);  in make_resync_request()
603 		if (connection->data.socket) {  in make_resync_request()
604 			struct sock *sk = connection->data.socket->sk;  in make_resync_request()
614 		mutex_unlock(&connection->data.mutex);  in make_resync_request()
811 	struct drbd_connection *connection = first_peer_device(device)->connection;  in ping_peer()  local
813 	clear_bit(GOT_PING_ACK, &connection->flags);  in ping_peer()
814 	request_ping(connection);  in ping_peer()
815 	wait_event(connection->ping_wait,  in ping_peer()
816 		   test_bit(GOT_PING_ACK, &connection->flags) || device->state.conn < C_CONNECTED);  in ping_peer()
842 			drbd_queue_work(&first_peer_device(device)->connection->sender_work,  in drbd_resync_finished()
1110 		if (peer_device->connection->csums_tfm) {  in w_e_end_csum_rs_req()
1111 			digest_size = crypto_hash_digestsize(peer_device->connection->csums_tfm);  in w_e_end_csum_rs_req()
1116 			drbd_csum_ee(peer_device->connection->csums_tfm, peer_req, digest);  in w_e_end_csum_rs_req()
1161 	digest_size = crypto_hash_digestsize(peer_device->connection->verify_tfm);  in w_e_end_ov_req()
1169 		drbd_csum_ee(peer_device->connection->verify_tfm, peer_req, digest);  in w_e_end_ov_req()
1233 		digest_size = crypto_hash_digestsize(peer_device->connection->verify_tfm);  in w_e_end_ov_reply()
1236 			drbd_csum_ee(peer_device->connection->verify_tfm, peer_req, digest);  in w_e_end_ov_reply()
1282 static int drbd_send_barrier(struct drbd_connection *connection)  in drbd_send_barrier()  argument
1287 	sock = &connection->data;  in drbd_send_barrier()
1288 	p = conn_prepare_command(connection, sock);  in drbd_send_barrier()
1291 	p->barrier = connection->send.current_epoch_nr;  in drbd_send_barrier()
1293 	connection->send.current_epoch_writes = 0;  in drbd_send_barrier()
1295 	return conn_send_command(connection, sock, P_BARRIER, sizeof(*p), NULL, 0);  in drbd_send_barrier()
1306 	sock = &first_peer_device(device)->connection->data;  in w_send_write_hint()
1312 static void re_init_if_first_write(struct drbd_connection *connection, unsigned int epoch)  in re_init_if_first_write()  argument
1314 	if (!connection->send.seen_any_write_yet) {  in re_init_if_first_write()
1315 		connection->send.seen_any_write_yet = true;  in re_init_if_first_write()
1316 		connection->send.current_epoch_nr = epoch;  in re_init_if_first_write()
1317 		connection->send.current_epoch_writes = 0;  in re_init_if_first_write()
1321 static void maybe_send_barrier(struct drbd_connection *connection, unsigned int epoch)  in maybe_send_barrier()  argument
1324 	if (!connection->send.seen_any_write_yet)  in maybe_send_barrier()
1326 	if (connection->send.current_epoch_nr != epoch) {  in maybe_send_barrier()
1327 		if (connection->send.current_epoch_writes)  in maybe_send_barrier()
1328 			drbd_send_barrier(connection);  in maybe_send_barrier()
1329 		connection->send.current_epoch_nr = epoch;  in maybe_send_barrier()
1338 	struct drbd_connection *const connection = peer_device->connection;  in w_send_out_of_sync()  local
1351 	maybe_send_barrier(connection, req->epoch);  in w_send_out_of_sync()
1369 	struct drbd_connection *connection = peer_device->connection;  in w_send_dblock()  local
1378 	re_init_if_first_write(connection, req->epoch);  in w_send_dblock()
1379 	maybe_send_barrier(connection, req->epoch);  in w_send_dblock()
1380 	connection->send.current_epoch_writes++;  in w_send_dblock()
1398 	struct drbd_connection *connection = peer_device->connection;  in w_send_read_req()  local
1409 	maybe_send_barrier(connection, req->epoch);  in w_send_read_req()
1613 static bool use_checksum_based_resync(struct drbd_connection *connection, struct drbd_device *devic…  in use_checksum_based_resync()  argument
1617 	csums_after_crash_only = rcu_dereference(connection->net_conf)->csums_after_crash_only;  in use_checksum_based_resync()
1619 	return connection->agreed_pro_version >= 89 &&		/* supported? */  in use_checksum_based_resync()
1620 		connection->csums_tfm &&			/* configured? */  in use_checksum_based_resync()
1636 	struct drbd_connection *connection = peer_device ? peer_device->connection : NULL;  in drbd_start_resync()  local
1655 				conn_request_state(connection, NS(conn, C_DISCONNECTING), CS_HARD);  in drbd_start_resync()
1668 					conn_request_state(connection,  in drbd_start_resync()
1676 	if (current == connection->worker.task) {  in drbd_start_resync()
1760 			device->use_csums = use_checksum_based_resync(connection, device);  in drbd_start_resync()
1772 		if (side == C_SYNC_SOURCE && connection->agreed_pro_version < 96)  in drbd_start_resync()
1775 		if (connection->agreed_pro_version < 95 && device->rs_total == 0) {  in drbd_start_resync()
1791 				nc = rcu_dereference(connection->net_conf);  in drbd_start_resync()
1949 static void do_unqueued_work(struct drbd_connection *connection)  in do_unqueued_work()  argument
1955 	idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {  in do_unqueued_work()
1978 static void wait_for_work(struct drbd_connection *connection, struct list_head *work_list)  in wait_for_work()  argument
1984 	dequeue_work_batch(&connection->sender_work, work_list);  in wait_for_work()
1995 	nc = rcu_dereference(connection->net_conf);  in wait_for_work()
1999 		mutex_lock(&connection->data.mutex);  in wait_for_work()
2000 		if (connection->data.socket)  in wait_for_work()
2001 			drbd_tcp_uncork(connection->data.socket);  in wait_for_work()
2002 		mutex_unlock(&connection->data.mutex);  in wait_for_work()
2007 		prepare_to_wait(&connection->sender_work.q_wait, &wait, TASK_INTERRUPTIBLE);  in wait_for_work()
2008 		spin_lock_irq(&connection->resource->req_lock);  in wait_for_work()
2009 		spin_lock(&connection->sender_work.q_lock);	/* FIXME get rid of this one? */  in wait_for_work()
2010 		if (!list_empty(&connection->sender_work.q))  in wait_for_work()
2011 			list_splice_tail_init(&connection->sender_work.q, work_list);  in wait_for_work()
2012 		spin_unlock(&connection->sender_work.q_lock);	/* FIXME get rid of this one? */  in wait_for_work()
2014 			spin_unlock_irq(&connection->resource->req_lock);  in wait_for_work()
2026 			atomic_read(&connection->current_tle_nr) !=  in wait_for_work()
2027 			connection->send.current_epoch_nr;  in wait_for_work()
2028 		spin_unlock_irq(&connection->resource->req_lock);  in wait_for_work()
2031 			maybe_send_barrier(connection,  in wait_for_work()
2032 					connection->send.current_epoch_nr + 1);  in wait_for_work()
2034 		if (test_bit(DEVICE_WORK_PENDING, &connection->flags))  in wait_for_work()
2038 		if (get_t_state(&connection->worker) != RUNNING)  in wait_for_work()
2046 	finish_wait(&connection->sender_work.q_wait, &wait);  in wait_for_work()
2050 	nc = rcu_dereference(connection->net_conf);  in wait_for_work()
2053 	mutex_lock(&connection->data.mutex);  in wait_for_work()
2054 	if (connection->data.socket) {  in wait_for_work()
2056 			drbd_tcp_cork(connection->data.socket);  in wait_for_work()
2058 			drbd_tcp_uncork(connection->data.socket);  in wait_for_work()
2060 	mutex_unlock(&connection->data.mutex);  in wait_for_work()
2065 	struct drbd_connection *connection = thi->connection;  in drbd_worker()  local
2075 			update_worker_timing_details(connection, wait_for_work);  in drbd_worker()
2076 			wait_for_work(connection, &work_list);  in drbd_worker()
2079 		if (test_and_clear_bit(DEVICE_WORK_PENDING, &connection->flags)) {  in drbd_worker()
2080 			update_worker_timing_details(connection, do_unqueued_work);  in drbd_worker()
2081 			do_unqueued_work(connection);  in drbd_worker()
2087 				drbd_warn(connection, "Worker got an unexpected signal\n");  in drbd_worker()
2099 			update_worker_timing_details(connection, w->cb);  in drbd_worker()
2100 			if (w->cb(w, connection->cstate < C_WF_REPORT_PARAMS) == 0)  in drbd_worker()
2102 			if (connection->cstate >= C_WF_REPORT_PARAMS)  in drbd_worker()
2103 				conn_request_state(connection, NS(conn, C_NETWORK_FAILURE), CS_HARD);  in drbd_worker()
2108 		if (test_and_clear_bit(DEVICE_WORK_PENDING, &connection->flags)) {  in drbd_worker()
2109 			update_worker_timing_details(connection, do_unqueued_work);  in drbd_worker()
2110 			do_unqueued_work(connection);  in drbd_worker()
2115 			update_worker_timing_details(connection, w->cb);  in drbd_worker()
2118 			dequeue_work_batch(&connection->sender_work, &work_list);  in drbd_worker()
2119 	} while (!list_empty(&work_list) || test_bit(DEVICE_WORK_PENDING, &connection->flags));  in drbd_worker()
2122 	idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {  in drbd_worker()