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()
357 	digest_size = crypto_hash_digestsize(peer_device->connection->csums_tfm);  in w_e_send_csum()
362 		drbd_csum_ee(peer_device->connection->csums_tfm, peer_req, digest);  in w_e_send_csum()
451 		&first_peer_device(device)->connection->sender_work,  in resync_timer_fn()
589 	struct drbd_connection *const connection = peer_device ? peer_device->connection : NULL;  in make_resync_request()  local
624 		mutex_lock(&connection->data.mutex);  in make_resync_request()
625 		if (connection->data.socket) {  in make_resync_request()
626 			struct sock *sk = connection->data.socket->sk;  in make_resync_request()
636 		mutex_unlock(&connection->data.mutex);  in make_resync_request()
833 	struct drbd_connection *connection = first_peer_device(device)->connection;  in ping_peer()  local
835 	clear_bit(GOT_PING_ACK, &connection->flags);  in ping_peer()
836 	request_ping(connection);  in ping_peer()
837 	wait_event(connection->ping_wait,  in ping_peer()
838 		   test_bit(GOT_PING_ACK, &connection->flags) || device->state.conn < C_CONNECTED);  in ping_peer()
864 			drbd_queue_work(&first_peer_device(device)->connection->sender_work,  in drbd_resync_finished()
1132 		if (peer_device->connection->csums_tfm) {  in w_e_end_csum_rs_req()
1133 			digest_size = crypto_hash_digestsize(peer_device->connection->csums_tfm);  in w_e_end_csum_rs_req()
1138 			drbd_csum_ee(peer_device->connection->csums_tfm, peer_req, digest);  in w_e_end_csum_rs_req()
1183 	digest_size = crypto_hash_digestsize(peer_device->connection->verify_tfm);  in w_e_end_ov_req()
1191 		drbd_csum_ee(peer_device->connection->verify_tfm, peer_req, digest);  in w_e_end_ov_req()
1255 		digest_size = crypto_hash_digestsize(peer_device->connection->verify_tfm);  in w_e_end_ov_reply()
1258 			drbd_csum_ee(peer_device->connection->verify_tfm, peer_req, digest);  in w_e_end_ov_reply()
1304 static int drbd_send_barrier(struct drbd_connection *connection)  in drbd_send_barrier()  argument
1309 	sock = &connection->data;  in drbd_send_barrier()
1310 	p = conn_prepare_command(connection, sock);  in drbd_send_barrier()
1313 	p->barrier = connection->send.current_epoch_nr;  in drbd_send_barrier()
1315 	connection->send.current_epoch_writes = 0;  in drbd_send_barrier()
1317 	return conn_send_command(connection, sock, P_BARRIER, sizeof(*p), NULL, 0);  in drbd_send_barrier()
1328 	sock = &first_peer_device(device)->connection->data;  in w_send_write_hint()
1334 static void re_init_if_first_write(struct drbd_connection *connection, unsigned int epoch)  in re_init_if_first_write()  argument
1336 	if (!connection->send.seen_any_write_yet) {  in re_init_if_first_write()
1337 		connection->send.seen_any_write_yet = true;  in re_init_if_first_write()
1338 		connection->send.current_epoch_nr = epoch;  in re_init_if_first_write()
1339 		connection->send.current_epoch_writes = 0;  in re_init_if_first_write()
1343 static void maybe_send_barrier(struct drbd_connection *connection, unsigned int epoch)  in maybe_send_barrier()  argument
1346 	if (!connection->send.seen_any_write_yet)  in maybe_send_barrier()
1348 	if (connection->send.current_epoch_nr != epoch) {  in maybe_send_barrier()
1349 		if (connection->send.current_epoch_writes)  in maybe_send_barrier()
1350 			drbd_send_barrier(connection);  in maybe_send_barrier()
1351 		connection->send.current_epoch_nr = epoch;  in maybe_send_barrier()
1360 	struct drbd_connection *const connection = peer_device->connection;  in w_send_out_of_sync()  local
1373 	maybe_send_barrier(connection, req->epoch);  in w_send_out_of_sync()
1391 	struct drbd_connection *connection = peer_device->connection;  in w_send_dblock()  local
1400 	re_init_if_first_write(connection, req->epoch);  in w_send_dblock()
1401 	maybe_send_barrier(connection, req->epoch);  in w_send_dblock()
1402 	connection->send.current_epoch_writes++;  in w_send_dblock()
1420 	struct drbd_connection *connection = peer_device->connection;  in w_send_read_req()  local
1431 	maybe_send_barrier(connection, req->epoch);  in w_send_read_req()
1635 static bool use_checksum_based_resync(struct drbd_connection *connection, struct drbd_device *devic…  in use_checksum_based_resync()  argument
1639 	csums_after_crash_only = rcu_dereference(connection->net_conf)->csums_after_crash_only;  in use_checksum_based_resync()
1641 	return connection->agreed_pro_version >= 89 &&		/* supported? */  in use_checksum_based_resync()
1642 		connection->csums_tfm &&			/* configured? */  in use_checksum_based_resync()
1658 	struct drbd_connection *connection = peer_device ? peer_device->connection : NULL;  in drbd_start_resync()  local
1677 				conn_request_state(connection, NS(conn, C_DISCONNECTING), CS_HARD);  in drbd_start_resync()
1690 					conn_request_state(connection,  in drbd_start_resync()
1698 	if (current == connection->worker.task) {  in drbd_start_resync()
1782 			device->use_csums = use_checksum_based_resync(connection, device);  in drbd_start_resync()
1794 		if (side == C_SYNC_SOURCE && connection->agreed_pro_version < 96)  in drbd_start_resync()
1797 		if (connection->agreed_pro_version < 95 && device->rs_total == 0) {  in drbd_start_resync()
1813 				nc = rcu_dereference(connection->net_conf);  in drbd_start_resync()
1971 static void do_unqueued_work(struct drbd_connection *connection)  in do_unqueued_work()  argument
1977 	idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {  in do_unqueued_work()
2000 static void wait_for_work(struct drbd_connection *connection, struct list_head *work_list)  in wait_for_work()  argument
2006 	dequeue_work_batch(&connection->sender_work, work_list);  in wait_for_work()
2017 	nc = rcu_dereference(connection->net_conf);  in wait_for_work()
2021 		mutex_lock(&connection->data.mutex);  in wait_for_work()
2022 		if (connection->data.socket)  in wait_for_work()
2023 			drbd_tcp_uncork(connection->data.socket);  in wait_for_work()
2024 		mutex_unlock(&connection->data.mutex);  in wait_for_work()
2029 		prepare_to_wait(&connection->sender_work.q_wait, &wait, TASK_INTERRUPTIBLE);  in wait_for_work()
2030 		spin_lock_irq(&connection->resource->req_lock);  in wait_for_work()
2031 		spin_lock(&connection->sender_work.q_lock);	/* FIXME get rid of this one? */  in wait_for_work()
2032 		if (!list_empty(&connection->sender_work.q))  in wait_for_work()
2033 			list_splice_tail_init(&connection->sender_work.q, work_list);  in wait_for_work()
2034 		spin_unlock(&connection->sender_work.q_lock);	/* FIXME get rid of this one? */  in wait_for_work()
2036 			spin_unlock_irq(&connection->resource->req_lock);  in wait_for_work()
2048 			atomic_read(&connection->current_tle_nr) !=  in wait_for_work()
2049 			connection->send.current_epoch_nr;  in wait_for_work()
2050 		spin_unlock_irq(&connection->resource->req_lock);  in wait_for_work()
2053 			maybe_send_barrier(connection,  in wait_for_work()
2054 					connection->send.current_epoch_nr + 1);  in wait_for_work()
2056 		if (test_bit(DEVICE_WORK_PENDING, &connection->flags))  in wait_for_work()
2060 		if (get_t_state(&connection->worker) != RUNNING)  in wait_for_work()
2068 	finish_wait(&connection->sender_work.q_wait, &wait);  in wait_for_work()
2072 	nc = rcu_dereference(connection->net_conf);  in wait_for_work()
2075 	mutex_lock(&connection->data.mutex);  in wait_for_work()
2076 	if (connection->data.socket) {  in wait_for_work()
2078 			drbd_tcp_cork(connection->data.socket);  in wait_for_work()
2080 			drbd_tcp_uncork(connection->data.socket);  in wait_for_work()
2082 	mutex_unlock(&connection->data.mutex);  in wait_for_work()
2087 	struct drbd_connection *connection = thi->connection;  in drbd_worker()  local
2097 			update_worker_timing_details(connection, wait_for_work);  in drbd_worker()
2098 			wait_for_work(connection, &work_list);  in drbd_worker()
2101 		if (test_and_clear_bit(DEVICE_WORK_PENDING, &connection->flags)) {  in drbd_worker()
2102 			update_worker_timing_details(connection, do_unqueued_work);  in drbd_worker()
2103 			do_unqueued_work(connection);  in drbd_worker()
2109 				drbd_warn(connection, "Worker got an unexpected signal\n");  in drbd_worker()
2121 			update_worker_timing_details(connection, w->cb);  in drbd_worker()
2122 			if (w->cb(w, connection->cstate < C_WF_REPORT_PARAMS) == 0)  in drbd_worker()
2124 			if (connection->cstate >= C_WF_REPORT_PARAMS)  in drbd_worker()
2125 				conn_request_state(connection, NS(conn, C_NETWORK_FAILURE), CS_HARD);  in drbd_worker()
2130 		if (test_and_clear_bit(DEVICE_WORK_PENDING, &connection->flags)) {  in drbd_worker()
2131 			update_worker_timing_details(connection, do_unqueued_work);  in drbd_worker()
2132 			do_unqueued_work(connection);  in drbd_worker()
2137 			update_worker_timing_details(connection, w->cb);  in drbd_worker()
2140 			dequeue_work_batch(&connection->sender_work, &work_list);  in drbd_worker()
2141 	} while (!list_empty(&work_list) || test_bit(DEVICE_WORK_PENDING, &connection->flags));  in drbd_worker()
2144 	idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {  in drbd_worker()