96 	drbd_queue_work(&peer_device->connection->sender_work, &peer_req->w);  in drbd_endio_read_sec_final()
107 	struct drbd_connection *connection = peer_device->connection;  in drbd_endio_write_sec_final()  local
149 	if (connection->cstate >= C_WF_REPORT_PARAMS) {  in drbd_endio_write_sec_final()
151 		if (!queue_work(connection->ack_sender, &peer_device->send_acks_work))  in drbd_endio_write_sec_final()
353 	digest_size = crypto_shash_digestsize(peer_device->connection->csums_tfm);  in w_e_send_csum()
358 		drbd_csum_ee(peer_device->connection->csums_tfm, peer_req, digest);  in w_e_send_csum()
449 		&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
617 	if (connection->agreed_features & DRBD_FF_THIN_RESYNC) {  in make_resync_request()
631 		mutex_lock(&connection->data.mutex);  in make_resync_request()
632 		if (connection->data.socket) {  in make_resync_request()
633 			struct sock *sk = connection->data.socket->sk;  in make_resync_request()
643 		mutex_unlock(&connection->data.mutex);  in make_resync_request()
845 	struct drbd_connection *connection = first_peer_device(device)->connection;  in ping_peer()  local
847 	clear_bit(GOT_PING_ACK, &connection->flags);  in ping_peer()
848 	request_ping(connection);  in ping_peer()
849 	wait_event(connection->ping_wait,  in ping_peer()
850 		   test_bit(GOT_PING_ACK, &connection->flags) || device->state.conn < C_CONNECTED);  in ping_peer()
856 	struct drbd_connection *connection = peer_device->connection;  in drbd_resync_finished()  local
878 			drbd_queue_work(&connection->sender_work, &dw->w);  in drbd_resync_finished()
1004 			idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {  in drbd_resync_finished()
1012 			conn_khelper(connection, "unfence-peer");  in drbd_resync_finished()
1052  * @cancel:	The connection will be closed anyways
1113  * @cancel:	The connection will be closed anyways
1195 		if (peer_device->connection->csums_tfm) {  in w_e_end_csum_rs_req()
1196 			digest_size = crypto_shash_digestsize(peer_device->connection->csums_tfm);  in w_e_end_csum_rs_req()
1201 			drbd_csum_ee(peer_device->connection->csums_tfm, peer_req, digest);  in w_e_end_csum_rs_req()
1246 	digest_size = crypto_shash_digestsize(peer_device->connection->verify_tfm);  in w_e_end_ov_req()
1249 		err = 1;	/* terminate the connection in case the allocation failed */  in w_e_end_ov_req()
1254 		drbd_csum_ee(peer_device->connection->verify_tfm, peer_req, digest);  in w_e_end_ov_req()
1319 		digest_size = crypto_shash_digestsize(peer_device->connection->verify_tfm);  in w_e_end_ov_reply()
1322 			drbd_csum_ee(peer_device->connection->verify_tfm, peer_req, digest);  in w_e_end_ov_reply()
1368 static int drbd_send_barrier(struct drbd_connection *connection)  in drbd_send_barrier()  argument
1373 	sock = &connection->data;  in drbd_send_barrier()
1374 	p = conn_prepare_command(connection, sock);  in drbd_send_barrier()
1377 	p->barrier = connection->send.current_epoch_nr;  in drbd_send_barrier()
1379 	connection->send.current_epoch_writes = 0;  in drbd_send_barrier()
1380 	connection->send.last_sent_barrier_jif = jiffies;  in drbd_send_barrier()
1382 	return conn_send_command(connection, sock, P_BARRIER, sizeof(*p), NULL, 0);  in drbd_send_barrier()
1387 	struct drbd_socket *sock = &pd->connection->data;  in pd_send_unplug_remote()
1403 static void re_init_if_first_write(struct drbd_connection *connection, unsigned int epoch)  in re_init_if_first_write()  argument
1405 	if (!connection->send.seen_any_write_yet) {  in re_init_if_first_write()
1406 		connection->send.seen_any_write_yet = true;  in re_init_if_first_write()
1407 		connection->send.current_epoch_nr = epoch;  in re_init_if_first_write()
1408 		connection->send.current_epoch_writes = 0;  in re_init_if_first_write()
1409 		connection->send.last_sent_barrier_jif = jiffies;  in re_init_if_first_write()
1413 static void maybe_send_barrier(struct drbd_connection *connection, unsigned int epoch)  in maybe_send_barrier()  argument
1415 	/* re-init if first write on this connection */  in maybe_send_barrier()
1416 	if (!connection->send.seen_any_write_yet)  in maybe_send_barrier()
1418 	if (connection->send.current_epoch_nr != epoch) {  in maybe_send_barrier()
1419 		if (connection->send.current_epoch_writes)  in maybe_send_barrier()
1420 			drbd_send_barrier(connection);  in maybe_send_barrier()
1421 		connection->send.current_epoch_nr = epoch;  in maybe_send_barrier()
1430 	struct drbd_connection *const connection = peer_device->connection;  in w_send_out_of_sync()  local
1439 	/* this time, no connection->send.current_epoch_writes++;  in w_send_out_of_sync()
1443 	maybe_send_barrier(connection, req->epoch);  in w_send_out_of_sync()
1454  * @cancel:	The connection will be closed anyways
1461 	struct drbd_connection *connection = peer_device->connection;  in w_send_dblock()  local
1471 	re_init_if_first_write(connection, req->epoch);  in w_send_dblock()
1472 	maybe_send_barrier(connection, req->epoch);  in w_send_dblock()
1473 	connection->send.current_epoch_writes++;  in w_send_dblock()
1487  * @cancel:	The connection will be closed anyways
1494 	struct drbd_connection *connection = peer_device->connection;  in w_send_read_req()  local
1506 	maybe_send_barrier(connection, req->epoch);  in w_send_read_req()
1720 static bool use_checksum_based_resync(struct drbd_connection *connection, struct drbd_device *devic…  in use_checksum_based_resync()  argument
1724 	csums_after_crash_only = rcu_dereference(connection->net_conf)->csums_after_crash_only;  in use_checksum_based_resync()
1726 	return connection->agreed_pro_version >= 89 &&		/* supported? */  in use_checksum_based_resync()
1727 		connection->csums_tfm &&			/* configured? */  in use_checksum_based_resync()
1743 	struct drbd_connection *connection = peer_device ? peer_device->connection : NULL;  in drbd_start_resync()  local
1752 	if (!connection) {  in drbd_start_resync()
1753 		drbd_err(device, "No connection to peer, aborting!\n");  in drbd_start_resync()
1766 					 "dropping connection.\n", r);  in drbd_start_resync()
1767 				conn_request_state(connection, NS(conn, C_DISCONNECTING), CS_HARD);  in drbd_start_resync()
1779 						 "dropping connection.\n", r);  in drbd_start_resync()
1780 					conn_request_state(connection,  in drbd_start_resync()
1788 	if (current == connection->worker.task) {  in drbd_start_resync()
1803 	/* Did some connection breakage or IO error race with us? */  in drbd_start_resync()
1866 			device->use_csums = use_checksum_based_resync(connection, device);  in drbd_start_resync()
1878 		if (side == C_SYNC_SOURCE && connection->agreed_pro_version < 96)  in drbd_start_resync()
1881 		if (connection->agreed_pro_version < 95 && device->rs_total == 0) {  in drbd_start_resync()
1883 			 * detect connection loss) that can lead to a full sync  in drbd_start_resync()
1889 			 * detect connection loss, then waiting for a ping  in drbd_start_resync()
1897 				nc = rcu_dereference(connection->net_conf);  in drbd_start_resync()
2058 static void do_unqueued_work(struct drbd_connection *connection)  in do_unqueued_work()  argument
2064 	idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {  in do_unqueued_work()
2087 static void wait_for_work(struct drbd_connection *connection, struct list_head *work_list)  in wait_for_work()  argument
2093 	dequeue_work_batch(&connection->sender_work, work_list);  in wait_for_work()
2104 	nc = rcu_dereference(connection->net_conf);  in wait_for_work()
2108 		mutex_lock(&connection->data.mutex);  in wait_for_work()
2109 		if (connection->data.socket)  in wait_for_work()
2110 			tcp_sock_set_cork(connection->data.socket->sk, false);  in wait_for_work()
2111 		mutex_unlock(&connection->data.mutex);  in wait_for_work()
2116 		prepare_to_wait(&connection->sender_work.q_wait, &wait, TASK_INTERRUPTIBLE);  in wait_for_work()
2117 		spin_lock_irq(&connection->resource->req_lock);  in wait_for_work()
2118 		spin_lock(&connection->sender_work.q_lock);	/* FIXME get rid of this one? */  in wait_for_work()
2119 		if (!list_empty(&connection->sender_work.q))  in wait_for_work()
2120 			list_splice_tail_init(&connection->sender_work.q, work_list);  in wait_for_work()
2121 		spin_unlock(&connection->sender_work.q_lock);	/* FIXME get rid of this one? */  in wait_for_work()
2123 			spin_unlock_irq(&connection->resource->req_lock);  in wait_for_work()
2129 		 * epoch.  Next incoming request epoch will be connection ->  in wait_for_work()
2135 			atomic_read(&connection->current_tle_nr) !=  in wait_for_work()
2136 			connection->send.current_epoch_nr;  in wait_for_work()
2137 		spin_unlock_irq(&connection->resource->req_lock);  in wait_for_work()
2140 			maybe_send_barrier(connection,  in wait_for_work()
2141 					connection->send.current_epoch_nr + 1);  in wait_for_work()
2143 		if (test_bit(DEVICE_WORK_PENDING, &connection->flags))  in wait_for_work()
2147 		if (get_t_state(&connection->worker) != RUNNING)  in wait_for_work()
2155 	finish_wait(&connection->sender_work.q_wait, &wait);  in wait_for_work()
2159 	nc = rcu_dereference(connection->net_conf);  in wait_for_work()
2162 	mutex_lock(&connection->data.mutex);  in wait_for_work()
2163 	if (connection->data.socket) {  in wait_for_work()
2165 			tcp_sock_set_cork(connection->data.socket->sk, true);  in wait_for_work()
2167 			tcp_sock_set_cork(connection->data.socket->sk, false);  in wait_for_work()
2169 	mutex_unlock(&connection->data.mutex);  in wait_for_work()
2174 	struct drbd_connection *connection = thi->connection;  in drbd_worker()  local
2184 			update_worker_timing_details(connection, wait_for_work);  in drbd_worker()
2185 			wait_for_work(connection, &work_list);  in drbd_worker()
2188 		if (test_and_clear_bit(DEVICE_WORK_PENDING, &connection->flags)) {  in drbd_worker()
2189 			update_worker_timing_details(connection, do_unqueued_work);  in drbd_worker()
2190 			do_unqueued_work(connection);  in drbd_worker()
2196 				drbd_warn(connection, "Worker got an unexpected signal\n");  in drbd_worker()
2208 			update_worker_timing_details(connection, w->cb);  in drbd_worker()
2209 			if (w->cb(w, connection->cstate < C_WF_REPORT_PARAMS) == 0)  in drbd_worker()
2211 			if (connection->cstate >= C_WF_REPORT_PARAMS)  in drbd_worker()
2212 				conn_request_state(connection, NS(conn, C_NETWORK_FAILURE), CS_HARD);  in drbd_worker()
2217 		if (test_and_clear_bit(DEVICE_WORK_PENDING, &connection->flags)) {  in drbd_worker()
2218 			update_worker_timing_details(connection, do_unqueued_work);  in drbd_worker()
2219 			do_unqueued_work(connection);  in drbd_worker()
2224 			update_worker_timing_details(connection, w->cb);  in drbd_worker()
2227 			dequeue_work_batch(&connection->sender_work, &work_list);  in drbd_worker()
2228 	} while (!list_empty(&work_list) || test_bit(DEVICE_WORK_PENDING, &connection->flags));  in drbd_worker()
2231 	idr_for_each_entry(&connection->peer_devices, peer_device, vnr) {  in drbd_worker()