Lines Matching full:task
73 static void xprt_request_init(struct rpc_task *task);
229 * @task: task that is requesting access to the transport
236 int xprt_reserve_xprt(struct rpc_xprt *xprt, struct rpc_task *task) in xprt_reserve_xprt() argument
238 struct rpc_rqst *req = task->tk_rqstp; in xprt_reserve_xprt()
241 if (task == xprt->snd_task) in xprt_reserve_xprt()
247 xprt->snd_task = task; in xprt_reserve_xprt()
250 trace_xprt_reserve_xprt(xprt, task); in xprt_reserve_xprt()
256 task->tk_status = -EAGAIN; in xprt_reserve_xprt()
257 if (RPC_IS_SOFT(task)) in xprt_reserve_xprt()
258 rpc_sleep_on_timeout(&xprt->sending, task, NULL, in xprt_reserve_xprt()
261 rpc_sleep_on(&xprt->sending, task, NULL); in xprt_reserve_xprt()
293 * @task: task that is requesting access to the transport
300 int xprt_reserve_xprt_cong(struct rpc_xprt *xprt, struct rpc_task *task) in xprt_reserve_xprt_cong() argument
302 struct rpc_rqst *req = task->tk_rqstp; in xprt_reserve_xprt_cong()
305 if (task == xprt->snd_task) in xprt_reserve_xprt_cong()
310 xprt->snd_task = task; in xprt_reserve_xprt_cong()
316 xprt->snd_task = task; in xprt_reserve_xprt_cong()
322 task->tk_status = -EAGAIN; in xprt_reserve_xprt_cong()
323 if (RPC_IS_SOFT(task)) in xprt_reserve_xprt_cong()
324 rpc_sleep_on_timeout(&xprt->sending, task, NULL, in xprt_reserve_xprt_cong()
327 rpc_sleep_on(&xprt->sending, task, NULL); in xprt_reserve_xprt_cong()
330 trace_xprt_reserve_cong(xprt, task); in xprt_reserve_xprt_cong()
335 static inline int xprt_lock_write(struct rpc_xprt *xprt, struct rpc_task *task) in xprt_lock_write() argument
339 if (test_bit(XPRT_LOCKED, &xprt->state) && xprt->snd_task == task) in xprt_lock_write()
342 retval = xprt->ops->reserve_xprt(xprt, task); in xprt_lock_write()
347 static bool __xprt_lock_write_func(struct rpc_task *task, void *data) in __xprt_lock_write_func() argument
351 xprt->snd_task = task; in __xprt_lock_write_func()
386 * @task: task that is releasing access to the transport
388 * Note that "task" can be NULL. No congestion control is provided.
390 void xprt_release_xprt(struct rpc_xprt *xprt, struct rpc_task *task) in xprt_release_xprt() argument
392 if (xprt->snd_task == task) { in xprt_release_xprt()
396 trace_xprt_release_xprt(xprt, task); in xprt_release_xprt()
403 * @task: task that is releasing access to the transport
405 * Note that "task" can be NULL. Another task is awoken to use the
408 void xprt_release_xprt_cong(struct rpc_xprt *xprt, struct rpc_task *task) in xprt_release_xprt_cong() argument
410 if (xprt->snd_task == task) { in xprt_release_xprt_cong()
414 trace_xprt_release_cong(xprt, task); in xprt_release_xprt_cong()
418 static inline void xprt_release_write(struct rpc_xprt *xprt, struct rpc_task *task) in xprt_release_write() argument
420 if (xprt->snd_task != task) in xprt_release_write()
423 xprt->ops->release_xprt(xprt, task); in xprt_release_write()
429 * overflowed. Put the task to sleep if this is the case.
447 * Adjust the congestion window, and wake up the next task
485 * @task: RPC request that recently completed
489 void xprt_release_rqst_cong(struct rpc_task *task) in xprt_release_rqst_cong() argument
491 struct rpc_rqst *req = task->tk_rqstp; in xprt_release_rqst_cong()
520 * @task: recently completed RPC request used to adjust window
533 void xprt_adjust_cwnd(struct rpc_xprt *xprt, struct rpc_task *task, int result) in xprt_adjust_cwnd() argument
535 struct rpc_rqst *req = task->tk_rqstp; in xprt_adjust_cwnd()
560 * @status: result code to plant in each task before waking it
591 dprintk("RPC: write space: waking waiting task on " in xprt_clear_write_space_locked()
599 * xprt_write_space - wake the task waiting for transport output buffer space
649 static void xprt_init_majortimeo(struct rpc_task *task, struct rpc_rqst *req) in xprt_init_majortimeo() argument
657 time_init = xprt_abs_ktime_to_jiffies(task->tk_start); in xprt_init_majortimeo()
658 req->rq_timeout = task->tk_client->cl_timeout->to_initval; in xprt_init_majortimeo()
772 xprt_request_retransmit_after_disconnect(struct rpc_task *task) in xprt_request_retransmit_after_disconnect() argument
774 struct rpc_rqst *req = task->tk_rqstp; in xprt_request_retransmit_after_disconnect()
835 struct rpc_task *task, in xprt_lock_connect() argument
843 if (xprt->snd_task != task) in xprt_lock_connect()
873 * @task: RPC task that is requesting the connect
876 void xprt_connect(struct rpc_task *task) in xprt_connect() argument
878 struct rpc_xprt *xprt = task->tk_rqstp->rq_xprt; in xprt_connect()
883 task->tk_status = -EAGAIN; in xprt_connect()
886 if (!xprt_lock_write(xprt, task)) in xprt_connect()
890 task->tk_rqstp->rq_connect_cookie = xprt->connect_cookie; in xprt_connect()
891 rpc_sleep_on_timeout(&xprt->pending, task, NULL, in xprt_connect()
892 xprt_request_timeout(task->tk_rqstp)); in xprt_connect()
901 xprt->ops->connect(xprt, task); in xprt_connect()
904 task->tk_status = 0; in xprt_connect()
905 rpc_wake_up_queued_task(&xprt->pending, task); in xprt_connect()
908 xprt_release_write(xprt, task); in xprt_connect()
1080 xprt_request_data_received(struct rpc_task *task) in xprt_request_data_received() argument
1082 return !test_bit(RPC_TASK_NEED_RECV, &task->tk_runstate) && in xprt_request_data_received()
1083 READ_ONCE(task->tk_rqstp->rq_reply_bytes_recvd) != 0; in xprt_request_data_received()
1087 xprt_request_need_enqueue_receive(struct rpc_task *task, struct rpc_rqst *req) in xprt_request_need_enqueue_receive() argument
1089 return !test_bit(RPC_TASK_NEED_RECV, &task->tk_runstate) && in xprt_request_need_enqueue_receive()
1090 READ_ONCE(task->tk_rqstp->rq_reply_bytes_recvd) == 0; in xprt_request_need_enqueue_receive()
1095 * @task: RPC task
1099 xprt_request_enqueue_receive(struct rpc_task *task) in xprt_request_enqueue_receive() argument
1101 struct rpc_rqst *req = task->tk_rqstp; in xprt_request_enqueue_receive()
1104 if (!xprt_request_need_enqueue_receive(task, req)) in xprt_request_enqueue_receive()
1107 xprt_request_prepare(task->tk_rqstp); in xprt_request_enqueue_receive()
1116 set_bit(RPC_TASK_NEED_RECV, &task->tk_runstate); in xprt_request_enqueue_receive()
1125 * @task: RPC task
1130 xprt_request_dequeue_receive_locked(struct rpc_task *task) in xprt_request_dequeue_receive_locked() argument
1132 struct rpc_rqst *req = task->tk_rqstp; in xprt_request_dequeue_receive_locked()
1134 if (test_and_clear_bit(RPC_TASK_NEED_RECV, &task->tk_runstate)) in xprt_request_dequeue_receive_locked()
1140 * @task: RPC request that recently completed
1144 void xprt_update_rtt(struct rpc_task *task) in xprt_update_rtt() argument
1146 struct rpc_rqst *req = task->tk_rqstp; in xprt_update_rtt()
1147 struct rpc_rtt *rtt = task->tk_client->cl_rtt; in xprt_update_rtt()
1148 unsigned int timer = task->tk_msg.rpc_proc->p_timer; in xprt_update_rtt()
1161 * @task: RPC request that recently completed
1166 void xprt_complete_rqst(struct rpc_task *task, int copied) in xprt_complete_rqst() argument
1168 struct rpc_rqst *req = task->tk_rqstp; in xprt_complete_rqst()
1178 xprt_request_dequeue_receive_locked(task); in xprt_complete_rqst()
1179 rpc_wake_up_queued_task(&xprt->pending, task); in xprt_complete_rqst()
1183 static void xprt_timer(struct rpc_task *task) in xprt_timer() argument
1185 struct rpc_rqst *req = task->tk_rqstp; in xprt_timer()
1188 if (task->tk_status != -ETIMEDOUT) in xprt_timer()
1191 trace_xprt_timer(xprt, req->rq_xid, task->tk_status); in xprt_timer()
1194 xprt->ops->timer(xprt, task); in xprt_timer()
1196 task->tk_status = 0; in xprt_timer()
1201 * @task: pointer to rpc_task
1206 * and put the task to sleep on the pending queue.
1208 void xprt_wait_for_reply_request_def(struct rpc_task *task) in xprt_wait_for_reply_request_def() argument
1210 struct rpc_rqst *req = task->tk_rqstp; in xprt_wait_for_reply_request_def()
1212 rpc_sleep_on_timeout(&req->rq_xprt->pending, task, xprt_timer, in xprt_wait_for_reply_request_def()
1219 * @task: pointer to rpc_task
1222 * and put the task to sleep on the pending queue.
1224 void xprt_wait_for_reply_request_rtt(struct rpc_task *task) in xprt_wait_for_reply_request_rtt() argument
1226 int timer = task->tk_msg.rpc_proc->p_timer; in xprt_wait_for_reply_request_rtt()
1227 struct rpc_clnt *clnt = task->tk_client; in xprt_wait_for_reply_request_rtt()
1229 struct rpc_rqst *req = task->tk_rqstp; in xprt_wait_for_reply_request_rtt()
1237 rpc_sleep_on_timeout(&req->rq_xprt->pending, task, xprt_timer, in xprt_wait_for_reply_request_rtt()
1244 * @task: RPC task about to send a request
1247 void xprt_request_wait_receive(struct rpc_task *task) in xprt_request_wait_receive() argument
1249 struct rpc_rqst *req = task->tk_rqstp; in xprt_request_wait_receive()
1252 if (!test_bit(RPC_TASK_NEED_RECV, &task->tk_runstate)) in xprt_request_wait_receive()
1260 if (test_bit(RPC_TASK_NEED_RECV, &task->tk_runstate)) { in xprt_request_wait_receive()
1261 xprt->ops->wait_for_reply_request(task); in xprt_request_wait_receive()
1267 if (xprt_request_retransmit_after_disconnect(task)) in xprt_request_wait_receive()
1269 task, -ENOTCONN); in xprt_request_wait_receive()
1275 xprt_request_need_enqueue_transmit(struct rpc_task *task, struct rpc_rqst *req) in xprt_request_need_enqueue_transmit() argument
1277 return !test_bit(RPC_TASK_NEED_XMIT, &task->tk_runstate); in xprt_request_need_enqueue_transmit()
1281 * xprt_request_enqueue_transmit - queue a task for transmission
1282 * @task: pointer to rpc_task
1284 * Add a task to the transmission queue.
1287 xprt_request_enqueue_transmit(struct rpc_task *task) in xprt_request_enqueue_transmit() argument
1289 struct rpc_rqst *pos, *req = task->tk_rqstp; in xprt_request_enqueue_transmit()
1292 if (xprt_request_need_enqueue_transmit(task, req)) { in xprt_request_enqueue_transmit()
1311 if (pos->rq_task->tk_owner != task->tk_owner) in xprt_request_enqueue_transmit()
1321 set_bit(RPC_TASK_NEED_XMIT, &task->tk_runstate); in xprt_request_enqueue_transmit()
1327 * xprt_request_dequeue_transmit_locked - remove a task from the transmission queue
1328 * @task: pointer to rpc_task
1330 * Remove a task from the transmission queue
1334 xprt_request_dequeue_transmit_locked(struct rpc_task *task) in xprt_request_dequeue_transmit_locked() argument
1336 struct rpc_rqst *req = task->tk_rqstp; in xprt_request_dequeue_transmit_locked()
1338 if (!test_and_clear_bit(RPC_TASK_NEED_XMIT, &task->tk_runstate)) in xprt_request_dequeue_transmit_locked()
1353 * xprt_request_dequeue_transmit - remove a task from the transmission queue
1354 * @task: pointer to rpc_task
1356 * Remove a task from the transmission queue
1359 xprt_request_dequeue_transmit(struct rpc_task *task) in xprt_request_dequeue_transmit() argument
1361 struct rpc_rqst *req = task->tk_rqstp; in xprt_request_dequeue_transmit()
1365 xprt_request_dequeue_transmit_locked(task); in xprt_request_dequeue_transmit()
1370 * xprt_request_dequeue_xprt - remove a task from the transmit+receive queue
1371 * @task: pointer to rpc_task
1373 * Remove a task from the transmit and receive queues, and ensure that
1377 xprt_request_dequeue_xprt(struct rpc_task *task) in xprt_request_dequeue_xprt() argument
1379 struct rpc_rqst *req = task->tk_rqstp; in xprt_request_dequeue_xprt()
1382 if (test_bit(RPC_TASK_NEED_XMIT, &task->tk_runstate) || in xprt_request_dequeue_xprt()
1383 test_bit(RPC_TASK_NEED_RECV, &task->tk_runstate) || in xprt_request_dequeue_xprt()
1386 xprt_request_dequeue_transmit_locked(task); in xprt_request_dequeue_xprt()
1387 xprt_request_dequeue_receive_locked(task); in xprt_request_dequeue_xprt()
1389 set_bit(RPC_TASK_MSG_PIN_WAIT, &task->tk_runstate); in xprt_request_dequeue_xprt()
1393 clear_bit(RPC_TASK_MSG_PIN_WAIT, &task->tk_runstate); in xprt_request_dequeue_xprt()
1416 * xprt_request_need_retransmit - Test if a task needs retransmission
1417 * @task: pointer to rpc_task
1419 * Test for whether a connection breakage requires the task to retransmit
1422 xprt_request_need_retransmit(struct rpc_task *task) in xprt_request_need_retransmit() argument
1424 return xprt_request_retransmit_after_disconnect(task); in xprt_request_need_retransmit()
1429 * @task: RPC task about to send a request
1432 bool xprt_prepare_transmit(struct rpc_task *task) in xprt_prepare_transmit() argument
1434 struct rpc_rqst *req = task->tk_rqstp; in xprt_prepare_transmit()
1437 if (!xprt_lock_write(xprt, task)) { in xprt_prepare_transmit()
1439 if (!test_bit(RPC_TASK_NEED_XMIT, &task->tk_runstate)) in xprt_prepare_transmit()
1441 task, 0); in xprt_prepare_transmit()
1448 void xprt_end_transmit(struct rpc_task *task) in xprt_end_transmit() argument
1450 struct rpc_xprt *xprt = task->tk_rqstp->rq_xprt; in xprt_end_transmit()
1453 xprt_release_write(xprt, task); in xprt_end_transmit()
1459 * @snd_task: RPC task that owns the transport lock
1470 struct rpc_task *task = req->rq_task; in xprt_request_transmit() local
1472 int is_retrans = RPC_WAS_SENT(task); in xprt_request_transmit()
1476 if (xprt_request_data_received(task)) { in xprt_request_transmit()
1481 if (rpcauth_xmit_need_reencode(task)) { in xprt_request_transmit()
1485 if (RPC_SIGNALLED(task)) { in xprt_request_transmit()
1498 trace_rpc_xdr_sendto(task, &req->rq_snd_buf); in xprt_request_transmit()
1508 task->tk_client->cl_stats->rpcretrans++; in xprt_request_transmit()
1512 task->tk_flags |= RPC_TASK_SENT; in xprt_request_transmit()
1525 xprt_request_dequeue_transmit(task); in xprt_request_transmit()
1526 rpc_wake_up_queued_task_set_status(&xprt->sending, task, status); in xprt_request_transmit()
1532 * @task: controlling RPC task
1536 * resume, or @task finished transmitting, and detected that it already
1540 xprt_transmit(struct rpc_task *task) in xprt_transmit() argument
1542 struct rpc_rqst *next, *req = task->tk_rqstp; in xprt_transmit()
1554 status = xprt_request_transmit(next, task); in xprt_transmit()
1560 if (test_bit(RPC_TASK_NEED_XMIT, &task->tk_runstate)) in xprt_transmit()
1561 task->tk_status = status; in xprt_transmit()
1564 /* Was @task transmitted, and has it received a reply? */ in xprt_transmit()
1565 if (xprt_request_data_received(task) && in xprt_transmit()
1566 !test_bit(RPC_TASK_NEED_XMIT, &task->tk_runstate)) in xprt_transmit()
1573 static void xprt_complete_request_init(struct rpc_task *task) in xprt_complete_request_init() argument
1575 if (task->tk_rqstp) in xprt_complete_request_init()
1576 xprt_request_init(task); in xprt_complete_request_init()
1579 void xprt_add_backlog(struct rpc_xprt *xprt, struct rpc_task *task) in xprt_add_backlog() argument
1582 rpc_sleep_on(&xprt->backlog, task, xprt_complete_request_init); in xprt_add_backlog()
1586 static bool __xprt_set_rq(struct rpc_task *task, void *data) in __xprt_set_rq() argument
1590 if (task->tk_rqstp == NULL) { in __xprt_set_rq()
1592 task->tk_rqstp = req; in __xprt_set_rq()
1608 static bool xprt_throttle_congested(struct rpc_xprt *xprt, struct rpc_task *task) in xprt_throttle_congested() argument
1616 xprt_add_backlog(xprt, task); in xprt_throttle_congested()
1655 void xprt_alloc_slot(struct rpc_xprt *xprt, struct rpc_task *task) in xprt_alloc_slot() argument
1672 task->tk_status = -ENOMEM; in xprt_alloc_slot()
1675 xprt_add_backlog(xprt, task); in xprt_alloc_slot()
1679 task->tk_status = -EAGAIN; in xprt_alloc_slot()
1688 task->tk_status = 0; in xprt_alloc_slot()
1689 task->tk_rqstp = req; in xprt_alloc_slot()
1783 xprt_request_init(struct rpc_task *task) in xprt_request_init() argument
1785 struct rpc_xprt *xprt = task->tk_xprt; in xprt_request_init()
1786 struct rpc_rqst *req = task->tk_rqstp; in xprt_request_init()
1788 req->rq_task = task; in xprt_request_init()
1800 xprt_init_majortimeo(task, req); in xprt_request_init()
1806 xprt_do_reserve(struct rpc_xprt *xprt, struct rpc_task *task) in xprt_do_reserve() argument
1808 xprt->ops->alloc_slot(xprt, task); in xprt_do_reserve()
1809 if (task->tk_rqstp != NULL) in xprt_do_reserve()
1810 xprt_request_init(task); in xprt_do_reserve()
1815 * @task: RPC task requesting a slot allocation
1818 * slots are available, place the task on the transport's
1821 void xprt_reserve(struct rpc_task *task) in xprt_reserve() argument
1823 struct rpc_xprt *xprt = task->tk_xprt; in xprt_reserve()
1825 task->tk_status = 0; in xprt_reserve()
1826 if (task->tk_rqstp != NULL) in xprt_reserve()
1829 task->tk_status = -EAGAIN; in xprt_reserve()
1830 if (!xprt_throttle_congested(xprt, task)) in xprt_reserve()
1831 xprt_do_reserve(xprt, task); in xprt_reserve()
1836 * @task: RPC task requesting a slot allocation
1838 * If no more slots are available, place the task on the transport's
1843 void xprt_retry_reserve(struct rpc_task *task) in xprt_retry_reserve() argument
1845 struct rpc_xprt *xprt = task->tk_xprt; in xprt_retry_reserve()
1847 task->tk_status = 0; in xprt_retry_reserve()
1848 if (task->tk_rqstp != NULL) in xprt_retry_reserve()
1851 task->tk_status = -EAGAIN; in xprt_retry_reserve()
1852 xprt_do_reserve(xprt, task); in xprt_retry_reserve()
1857 * @task: task which is finished with the slot
1860 void xprt_release(struct rpc_task *task) in xprt_release() argument
1863 struct rpc_rqst *req = task->tk_rqstp; in xprt_release()
1866 if (task->tk_client) { in xprt_release()
1867 xprt = task->tk_xprt; in xprt_release()
1868 xprt_release_write(xprt, task); in xprt_release()
1874 xprt_request_dequeue_xprt(task); in xprt_release()
1876 xprt->ops->release_xprt(xprt, task); in xprt_release()
1878 xprt->ops->release_request(task); in xprt_release()
1882 xprt->ops->buf_free(task); in xprt_release()
1890 task->tk_rqstp = NULL; in xprt_release()
1899 xprt_init_bc_request(struct rpc_rqst *req, struct rpc_task *task) in xprt_init_bc_request() argument
1903 task->tk_rqstp = req; in xprt_init_bc_request()
1904 req->rq_task = task; in xprt_init_bc_request()