107 	drbd_queue_work(&peer_device->connection->sender_work, &peer_req->w);  in drbd_endio_read_sec_final()
118 	struct drbd_connection *connection = peer_device->connection;  in drbd_endio_write_sec_final()  local
160 	if (connection->cstate >= C_WF_REPORT_PARAMS) {  in drbd_endio_write_sec_final()
162 		if (!queue_work(connection->ack_sender, &peer_device->send_acks_work))  in drbd_endio_write_sec_final()
370 	digest_size = crypto_ahash_digestsize(peer_device->connection->csums_tfm);  in w_e_send_csum()
375 		drbd_csum_ee(peer_device->connection->csums_tfm, peer_req, digest);  in w_e_send_csum()
465 		&first_peer_device(device)->connection->sender_work,  in resync_timer_fn()
603 	struct drbd_connection *const connection = peer_device ? peer_device->connection : NULL;  in make_resync_request()  local
631 	if (connection->agreed_features & DRBD_FF_THIN_RESYNC) {  in make_resync_request()
645 		mutex_lock(&connection->data.mutex);  in make_resync_request()
646 		if (connection->data.socket) {  in make_resync_request()
647 			struct sock *sk = connection->data.socket->sk;  in make_resync_request()
657 		mutex_unlock(&connection->data.mutex);  in make_resync_request()
858 	struct drbd_connection *connection = first_peer_device(device)->connection;  in ping_peer()  local
860 	clear_bit(GOT_PING_ACK, &connection->flags);  in ping_peer()
861 	request_ping(connection);  in ping_peer()
862 	wait_event(connection->ping_wait,  in ping_peer()
863 		   test_bit(GOT_PING_ACK, &connection->flags) || device->state.conn < C_CONNECTED);  in ping_peer()
868 	struct drbd_connection *connection = first_peer_device(device)->connection;  in drbd_resync_finished()  local
890 			drbd_queue_work(&connection->sender_work, &dw->w);  in drbd_resync_finished()
1016 			idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {  in drbd_resync_finished()
1024 			conn_khelper(connection, "unfence-peer");  in drbd_resync_finished()
1207 		if (peer_device->connection->csums_tfm) {  in w_e_end_csum_rs_req()
1208 			digest_size = crypto_ahash_digestsize(peer_device->connection->csums_tfm);  in w_e_end_csum_rs_req()
1213 			drbd_csum_ee(peer_device->connection->csums_tfm, peer_req, digest);  in w_e_end_csum_rs_req()
1258 	digest_size = crypto_ahash_digestsize(peer_device->connection->verify_tfm);  in w_e_end_ov_req()
1266 		drbd_csum_ee(peer_device->connection->verify_tfm, peer_req, digest);  in w_e_end_ov_req()
1330 		digest_size = crypto_ahash_digestsize(peer_device->connection->verify_tfm);  in w_e_end_ov_reply()
1333 			drbd_csum_ee(peer_device->connection->verify_tfm, peer_req, digest);  in w_e_end_ov_reply()
1379 static int drbd_send_barrier(struct drbd_connection *connection)  in drbd_send_barrier()  argument
1384 	sock = &connection->data;  in drbd_send_barrier()
1385 	p = conn_prepare_command(connection, sock);  in drbd_send_barrier()
1388 	p->barrier = connection->send.current_epoch_nr;  in drbd_send_barrier()
1390 	connection->send.current_epoch_writes = 0;  in drbd_send_barrier()
1391 	connection->send.last_sent_barrier_jif = jiffies;  in drbd_send_barrier()
1393 	return conn_send_command(connection, sock, P_BARRIER, sizeof(*p), NULL, 0);  in drbd_send_barrier()
1398 	struct drbd_socket *sock = &pd->connection->data;  in pd_send_unplug_remote()
1414 static void re_init_if_first_write(struct drbd_connection *connection, unsigned int epoch)  in re_init_if_first_write()  argument
1416 	if (!connection->send.seen_any_write_yet) {  in re_init_if_first_write()
1417 		connection->send.seen_any_write_yet = true;  in re_init_if_first_write()
1418 		connection->send.current_epoch_nr = epoch;  in re_init_if_first_write()
1419 		connection->send.current_epoch_writes = 0;  in re_init_if_first_write()
1420 		connection->send.last_sent_barrier_jif = jiffies;  in re_init_if_first_write()
1424 static void maybe_send_barrier(struct drbd_connection *connection, unsigned int epoch)  in maybe_send_barrier()  argument
1427 	if (!connection->send.seen_any_write_yet)  in maybe_send_barrier()
1429 	if (connection->send.current_epoch_nr != epoch) {  in maybe_send_barrier()
1430 		if (connection->send.current_epoch_writes)  in maybe_send_barrier()
1431 			drbd_send_barrier(connection);  in maybe_send_barrier()
1432 		connection->send.current_epoch_nr = epoch;  in maybe_send_barrier()
1441 	struct drbd_connection *const connection = peer_device->connection;  in w_send_out_of_sync()  local
1454 	maybe_send_barrier(connection, req->epoch);  in w_send_out_of_sync()
1472 	struct drbd_connection *connection = peer_device->connection;  in w_send_dblock()  local
1482 	re_init_if_first_write(connection, req->epoch);  in w_send_dblock()
1483 	maybe_send_barrier(connection, req->epoch);  in w_send_dblock()
1484 	connection->send.current_epoch_writes++;  in w_send_dblock()
1505 	struct drbd_connection *connection = peer_device->connection;  in w_send_read_req()  local
1517 	maybe_send_barrier(connection, req->epoch);  in w_send_read_req()
1725 static bool use_checksum_based_resync(struct drbd_connection *connection, struct drbd_device *devic…  in use_checksum_based_resync()  argument
1729 	csums_after_crash_only = rcu_dereference(connection->net_conf)->csums_after_crash_only;  in use_checksum_based_resync()
1731 	return connection->agreed_pro_version >= 89 &&		/* supported? */  in use_checksum_based_resync()
1732 		connection->csums_tfm &&			/* configured? */  in use_checksum_based_resync()
1748 	struct drbd_connection *connection = peer_device ? peer_device->connection : NULL;  in drbd_start_resync()  local
1757 	if (!connection) {  in drbd_start_resync()
1772 				conn_request_state(connection, NS(conn, C_DISCONNECTING), CS_HARD);  in drbd_start_resync()
1785 					conn_request_state(connection,  in drbd_start_resync()
1793 	if (current == connection->worker.task) {  in drbd_start_resync()
1871 			device->use_csums = use_checksum_based_resync(connection, device);  in drbd_start_resync()
1883 		if (side == C_SYNC_SOURCE && connection->agreed_pro_version < 96)  in drbd_start_resync()
1886 		if (connection->agreed_pro_version < 95 && device->rs_total == 0) {  in drbd_start_resync()
1902 				nc = rcu_dereference(connection->net_conf);  in drbd_start_resync()
2061 static void do_unqueued_work(struct drbd_connection *connection)  in do_unqueued_work()  argument
2067 	idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {  in do_unqueued_work()
2090 static void wait_for_work(struct drbd_connection *connection, struct list_head *work_list)  in wait_for_work()  argument
2096 	dequeue_work_batch(&connection->sender_work, work_list);  in wait_for_work()
2107 	nc = rcu_dereference(connection->net_conf);  in wait_for_work()
2111 		mutex_lock(&connection->data.mutex);  in wait_for_work()
2112 		if (connection->data.socket)  in wait_for_work()
2113 			drbd_tcp_uncork(connection->data.socket);  in wait_for_work()
2114 		mutex_unlock(&connection->data.mutex);  in wait_for_work()
2119 		prepare_to_wait(&connection->sender_work.q_wait, &wait, TASK_INTERRUPTIBLE);  in wait_for_work()
2120 		spin_lock_irq(&connection->resource->req_lock);  in wait_for_work()
2121 		spin_lock(&connection->sender_work.q_lock);	/* FIXME get rid of this one? */  in wait_for_work()
2122 		if (!list_empty(&connection->sender_work.q))  in wait_for_work()
2123 			list_splice_tail_init(&connection->sender_work.q, work_list);  in wait_for_work()
2124 		spin_unlock(&connection->sender_work.q_lock);	/* FIXME get rid of this one? */  in wait_for_work()
2126 			spin_unlock_irq(&connection->resource->req_lock);  in wait_for_work()
2138 			atomic_read(&connection->current_tle_nr) !=  in wait_for_work()
2139 			connection->send.current_epoch_nr;  in wait_for_work()
2140 		spin_unlock_irq(&connection->resource->req_lock);  in wait_for_work()
2143 			maybe_send_barrier(connection,  in wait_for_work()
2144 					connection->send.current_epoch_nr + 1);  in wait_for_work()
2146 		if (test_bit(DEVICE_WORK_PENDING, &connection->flags))  in wait_for_work()
2150 		if (get_t_state(&connection->worker) != RUNNING)  in wait_for_work()
2158 	finish_wait(&connection->sender_work.q_wait, &wait);  in wait_for_work()
2162 	nc = rcu_dereference(connection->net_conf);  in wait_for_work()
2165 	mutex_lock(&connection->data.mutex);  in wait_for_work()
2166 	if (connection->data.socket) {  in wait_for_work()
2168 			drbd_tcp_cork(connection->data.socket);  in wait_for_work()
2170 			drbd_tcp_uncork(connection->data.socket);  in wait_for_work()
2172 	mutex_unlock(&connection->data.mutex);  in wait_for_work()
2177 	struct drbd_connection *connection = thi->connection;  in drbd_worker()  local
2187 			update_worker_timing_details(connection, wait_for_work);  in drbd_worker()
2188 			wait_for_work(connection, &work_list);  in drbd_worker()
2191 		if (test_and_clear_bit(DEVICE_WORK_PENDING, &connection->flags)) {  in drbd_worker()
2192 			update_worker_timing_details(connection, do_unqueued_work);  in drbd_worker()
2193 			do_unqueued_work(connection);  in drbd_worker()
2199 				drbd_warn(connection, "Worker got an unexpected signal\n");  in drbd_worker()
2211 			update_worker_timing_details(connection, w->cb);  in drbd_worker()
2212 			if (w->cb(w, connection->cstate < C_WF_REPORT_PARAMS) == 0)  in drbd_worker()
2214 			if (connection->cstate >= C_WF_REPORT_PARAMS)  in drbd_worker()
2215 				conn_request_state(connection, NS(conn, C_NETWORK_FAILURE), CS_HARD);  in drbd_worker()
2220 		if (test_and_clear_bit(DEVICE_WORK_PENDING, &connection->flags)) {  in drbd_worker()
2221 			update_worker_timing_details(connection, do_unqueued_work);  in drbd_worker()
2222 			do_unqueued_work(connection);  in drbd_worker()
2227 			update_worker_timing_details(connection, w->cb);  in drbd_worker()
2230 			dequeue_work_batch(&connection->sender_work, &work_list);  in drbd_worker()
2231 	} while (!list_empty(&work_list) || test_bit(DEVICE_WORK_PENDING, &connection->flags));  in drbd_worker()
2234 	idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {  in drbd_worker()