Lines Matching full:task
75 static void xprt_request_init(struct rpc_task *task);
259 * @task: task that is requesting access to the transport
266 int xprt_reserve_xprt(struct rpc_xprt *xprt, struct rpc_task *task) in xprt_reserve_xprt() argument
268 struct rpc_rqst *req = task->tk_rqstp; in xprt_reserve_xprt()
271 if (task == xprt->snd_task) in xprt_reserve_xprt()
277 xprt->snd_task = task; in xprt_reserve_xprt()
280 trace_xprt_reserve_xprt(xprt, task); in xprt_reserve_xprt()
286 task->tk_status = -EAGAIN; in xprt_reserve_xprt()
287 if (RPC_IS_SOFT(task)) in xprt_reserve_xprt()
288 rpc_sleep_on_timeout(&xprt->sending, task, NULL, in xprt_reserve_xprt()
291 rpc_sleep_on(&xprt->sending, task, NULL); in xprt_reserve_xprt()
323 * @task: task that is requesting access to the transport
330 int xprt_reserve_xprt_cong(struct rpc_xprt *xprt, struct rpc_task *task) in xprt_reserve_xprt_cong() argument
332 struct rpc_rqst *req = task->tk_rqstp; in xprt_reserve_xprt_cong()
335 if (task == xprt->snd_task) in xprt_reserve_xprt_cong()
340 xprt->snd_task = task; in xprt_reserve_xprt_cong()
346 xprt->snd_task = task; in xprt_reserve_xprt_cong()
352 task->tk_status = -EAGAIN; in xprt_reserve_xprt_cong()
353 if (RPC_IS_SOFT(task)) in xprt_reserve_xprt_cong()
354 rpc_sleep_on_timeout(&xprt->sending, task, NULL, in xprt_reserve_xprt_cong()
357 rpc_sleep_on(&xprt->sending, task, NULL); in xprt_reserve_xprt_cong()
360 trace_xprt_reserve_cong(xprt, task); in xprt_reserve_xprt_cong()
365 static inline int xprt_lock_write(struct rpc_xprt *xprt, struct rpc_task *task) in xprt_lock_write() argument
369 if (test_bit(XPRT_LOCKED, &xprt->state) && xprt->snd_task == task) in xprt_lock_write()
372 retval = xprt->ops->reserve_xprt(xprt, task); in xprt_lock_write()
377 static bool __xprt_lock_write_func(struct rpc_task *task, void *data) in __xprt_lock_write_func() argument
381 xprt->snd_task = task; in __xprt_lock_write_func()
416 * @task: task that is releasing access to the transport
418 * Note that "task" can be NULL. No congestion control is provided.
420 void xprt_release_xprt(struct rpc_xprt *xprt, struct rpc_task *task) in xprt_release_xprt() argument
422 if (xprt->snd_task == task) { in xprt_release_xprt()
426 trace_xprt_release_xprt(xprt, task); in xprt_release_xprt()
433 * @task: task that is releasing access to the transport
435 * Note that "task" can be NULL. Another task is awoken to use the
438 void xprt_release_xprt_cong(struct rpc_xprt *xprt, struct rpc_task *task) in xprt_release_xprt_cong() argument
440 if (xprt->snd_task == task) { in xprt_release_xprt_cong()
444 trace_xprt_release_cong(xprt, task); in xprt_release_xprt_cong()
448 void xprt_release_write(struct rpc_xprt *xprt, struct rpc_task *task) in xprt_release_write() argument
450 if (xprt->snd_task != task) in xprt_release_write()
453 xprt->ops->release_xprt(xprt, task); in xprt_release_write()
459 * overflowed. Put the task to sleep if this is the case.
477 * Adjust the congestion window, and wake up the next task
515 * @task: RPC request that recently completed
519 void xprt_release_rqst_cong(struct rpc_task *task) in xprt_release_rqst_cong() argument
521 struct rpc_rqst *req = task->tk_rqstp; in xprt_release_rqst_cong()
550 * @task: recently completed RPC request used to adjust window
563 void xprt_adjust_cwnd(struct rpc_xprt *xprt, struct rpc_task *task, int result) in xprt_adjust_cwnd() argument
565 struct rpc_rqst *req = task->tk_rqstp; in xprt_adjust_cwnd()
590 * @status: result code to plant in each task before waking it
621 dprintk("RPC: write space: waking waiting task on " in xprt_clear_write_space_locked()
629 * xprt_write_space - wake the task waiting for transport output buffer space
679 static void xprt_init_majortimeo(struct rpc_task *task, struct rpc_rqst *req) in xprt_init_majortimeo() argument
687 time_init = xprt_abs_ktime_to_jiffies(task->tk_start); in xprt_init_majortimeo()
688 req->rq_timeout = task->tk_client->cl_timeout->to_initval; in xprt_init_majortimeo()
801 xprt_request_retransmit_after_disconnect(struct rpc_task *task) in xprt_request_retransmit_after_disconnect() argument
803 struct rpc_rqst *req = task->tk_rqstp; in xprt_request_retransmit_after_disconnect()
877 struct rpc_task *task, in xprt_lock_connect() argument
885 if (xprt->snd_task != task) in xprt_lock_connect()
915 * @task: RPC task that is requesting the connect
918 void xprt_connect(struct rpc_task *task) in xprt_connect() argument
920 struct rpc_xprt *xprt = task->tk_rqstp->rq_xprt; in xprt_connect()
925 task->tk_status = -EAGAIN; in xprt_connect()
928 if (!xprt_lock_write(xprt, task)) in xprt_connect()
937 task->tk_rqstp->rq_connect_cookie = xprt->connect_cookie; in xprt_connect()
938 rpc_sleep_on_timeout(&xprt->pending, task, NULL, in xprt_connect()
939 xprt_request_timeout(task->tk_rqstp)); in xprt_connect()
948 xprt->ops->connect(xprt, task); in xprt_connect()
951 task->tk_status = 0; in xprt_connect()
952 rpc_wake_up_queued_task(&xprt->pending, task); in xprt_connect()
955 xprt_release_write(xprt, task); in xprt_connect()
1127 xprt_request_data_received(struct rpc_task *task) in xprt_request_data_received() argument
1129 return !test_bit(RPC_TASK_NEED_RECV, &task->tk_runstate) && in xprt_request_data_received()
1130 READ_ONCE(task->tk_rqstp->rq_reply_bytes_recvd) != 0; in xprt_request_data_received()
1134 xprt_request_need_enqueue_receive(struct rpc_task *task, struct rpc_rqst *req) in xprt_request_need_enqueue_receive() argument
1136 return !test_bit(RPC_TASK_NEED_RECV, &task->tk_runstate) && in xprt_request_need_enqueue_receive()
1137 READ_ONCE(task->tk_rqstp->rq_reply_bytes_recvd) == 0; in xprt_request_need_enqueue_receive()
1142 * @task: RPC task
1146 xprt_request_enqueue_receive(struct rpc_task *task) in xprt_request_enqueue_receive() argument
1148 struct rpc_rqst *req = task->tk_rqstp; in xprt_request_enqueue_receive()
1151 if (!xprt_request_need_enqueue_receive(task, req)) in xprt_request_enqueue_receive()
1154 xprt_request_prepare(task->tk_rqstp); in xprt_request_enqueue_receive()
1163 set_bit(RPC_TASK_NEED_RECV, &task->tk_runstate); in xprt_request_enqueue_receive()
1172 * @task: RPC task
1177 xprt_request_dequeue_receive_locked(struct rpc_task *task) in xprt_request_dequeue_receive_locked() argument
1179 struct rpc_rqst *req = task->tk_rqstp; in xprt_request_dequeue_receive_locked()
1181 if (test_and_clear_bit(RPC_TASK_NEED_RECV, &task->tk_runstate)) in xprt_request_dequeue_receive_locked()
1187 * @task: RPC request that recently completed
1191 void xprt_update_rtt(struct rpc_task *task) in xprt_update_rtt() argument
1193 struct rpc_rqst *req = task->tk_rqstp; in xprt_update_rtt()
1194 struct rpc_rtt *rtt = task->tk_client->cl_rtt; in xprt_update_rtt()
1195 unsigned int timer = task->tk_msg.rpc_proc->p_timer; in xprt_update_rtt()
1208 * @task: RPC request that recently completed
1213 void xprt_complete_rqst(struct rpc_task *task, int copied) in xprt_complete_rqst() argument
1215 struct rpc_rqst *req = task->tk_rqstp; in xprt_complete_rqst()
1225 xprt_request_dequeue_receive_locked(task); in xprt_complete_rqst()
1226 rpc_wake_up_queued_task(&xprt->pending, task); in xprt_complete_rqst()
1230 static void xprt_timer(struct rpc_task *task) in xprt_timer() argument
1232 struct rpc_rqst *req = task->tk_rqstp; in xprt_timer()
1235 if (task->tk_status != -ETIMEDOUT) in xprt_timer()
1238 trace_xprt_timer(xprt, req->rq_xid, task->tk_status); in xprt_timer()
1241 xprt->ops->timer(xprt, task); in xprt_timer()
1243 task->tk_status = 0; in xprt_timer()
1248 * @task: pointer to rpc_task
1253 * and put the task to sleep on the pending queue.
1255 void xprt_wait_for_reply_request_def(struct rpc_task *task) in xprt_wait_for_reply_request_def() argument
1257 struct rpc_rqst *req = task->tk_rqstp; in xprt_wait_for_reply_request_def()
1259 rpc_sleep_on_timeout(&req->rq_xprt->pending, task, xprt_timer, in xprt_wait_for_reply_request_def()
1266 * @task: pointer to rpc_task
1269 * and put the task to sleep on the pending queue.
1271 void xprt_wait_for_reply_request_rtt(struct rpc_task *task) in xprt_wait_for_reply_request_rtt() argument
1273 int timer = task->tk_msg.rpc_proc->p_timer; in xprt_wait_for_reply_request_rtt()
1274 struct rpc_clnt *clnt = task->tk_client; in xprt_wait_for_reply_request_rtt()
1276 struct rpc_rqst *req = task->tk_rqstp; in xprt_wait_for_reply_request_rtt()
1284 rpc_sleep_on_timeout(&req->rq_xprt->pending, task, xprt_timer, in xprt_wait_for_reply_request_rtt()
1291 * @task: RPC task about to send a request
1294 void xprt_request_wait_receive(struct rpc_task *task) in xprt_request_wait_receive() argument
1296 struct rpc_rqst *req = task->tk_rqstp; in xprt_request_wait_receive()
1299 if (!test_bit(RPC_TASK_NEED_RECV, &task->tk_runstate)) in xprt_request_wait_receive()
1307 if (test_bit(RPC_TASK_NEED_RECV, &task->tk_runstate)) { in xprt_request_wait_receive()
1308 xprt->ops->wait_for_reply_request(task); in xprt_request_wait_receive()
1314 if (xprt_request_retransmit_after_disconnect(task)) in xprt_request_wait_receive()
1316 task, -ENOTCONN); in xprt_request_wait_receive()
1322 xprt_request_need_enqueue_transmit(struct rpc_task *task, struct rpc_rqst *req) in xprt_request_need_enqueue_transmit() argument
1324 return !test_bit(RPC_TASK_NEED_XMIT, &task->tk_runstate); in xprt_request_need_enqueue_transmit()
1328 * xprt_request_enqueue_transmit - queue a task for transmission
1329 * @task: pointer to rpc_task
1331 * Add a task to the transmission queue.
1334 xprt_request_enqueue_transmit(struct rpc_task *task) in xprt_request_enqueue_transmit() argument
1336 struct rpc_rqst *pos, *req = task->tk_rqstp; in xprt_request_enqueue_transmit()
1339 if (xprt_request_need_enqueue_transmit(task, req)) { in xprt_request_enqueue_transmit()
1356 } else if (RPC_IS_SWAPPER(task)) { in xprt_request_enqueue_transmit()
1369 if (pos->rq_task->tk_owner != task->tk_owner) in xprt_request_enqueue_transmit()
1380 set_bit(RPC_TASK_NEED_XMIT, &task->tk_runstate); in xprt_request_enqueue_transmit()
1386 * xprt_request_dequeue_transmit_locked - remove a task from the transmission queue
1387 * @task: pointer to rpc_task
1389 * Remove a task from the transmission queue
1393 xprt_request_dequeue_transmit_locked(struct rpc_task *task) in xprt_request_dequeue_transmit_locked() argument
1395 struct rpc_rqst *req = task->tk_rqstp; in xprt_request_dequeue_transmit_locked()
1397 if (!test_and_clear_bit(RPC_TASK_NEED_XMIT, &task->tk_runstate)) in xprt_request_dequeue_transmit_locked()
1413 * xprt_request_dequeue_transmit - remove a task from the transmission queue
1414 * @task: pointer to rpc_task
1416 * Remove a task from the transmission queue
1419 xprt_request_dequeue_transmit(struct rpc_task *task) in xprt_request_dequeue_transmit() argument
1421 struct rpc_rqst *req = task->tk_rqstp; in xprt_request_dequeue_transmit()
1425 xprt_request_dequeue_transmit_locked(task); in xprt_request_dequeue_transmit()
1430 * xprt_request_dequeue_xprt - remove a task from the transmit+receive queue
1431 * @task: pointer to rpc_task
1433 * Remove a task from the transmit and receive queues, and ensure that
1437 xprt_request_dequeue_xprt(struct rpc_task *task) in xprt_request_dequeue_xprt() argument
1439 struct rpc_rqst *req = task->tk_rqstp; in xprt_request_dequeue_xprt()
1442 if (test_bit(RPC_TASK_NEED_XMIT, &task->tk_runstate) || in xprt_request_dequeue_xprt()
1443 test_bit(RPC_TASK_NEED_RECV, &task->tk_runstate) || in xprt_request_dequeue_xprt()
1446 xprt_request_dequeue_transmit_locked(task); in xprt_request_dequeue_xprt()
1447 xprt_request_dequeue_receive_locked(task); in xprt_request_dequeue_xprt()
1449 set_bit(RPC_TASK_MSG_PIN_WAIT, &task->tk_runstate); in xprt_request_dequeue_xprt()
1453 clear_bit(RPC_TASK_MSG_PIN_WAIT, &task->tk_runstate); in xprt_request_dequeue_xprt()
1476 * xprt_request_need_retransmit - Test if a task needs retransmission
1477 * @task: pointer to rpc_task
1479 * Test for whether a connection breakage requires the task to retransmit
1482 xprt_request_need_retransmit(struct rpc_task *task) in xprt_request_need_retransmit() argument
1484 return xprt_request_retransmit_after_disconnect(task); in xprt_request_need_retransmit()
1489 * @task: RPC task about to send a request
1492 bool xprt_prepare_transmit(struct rpc_task *task) in xprt_prepare_transmit() argument
1494 struct rpc_rqst *req = task->tk_rqstp; in xprt_prepare_transmit()
1497 if (!xprt_lock_write(xprt, task)) { in xprt_prepare_transmit()
1499 if (!test_bit(RPC_TASK_NEED_XMIT, &task->tk_runstate)) in xprt_prepare_transmit()
1501 task, 0); in xprt_prepare_transmit()
1508 void xprt_end_transmit(struct rpc_task *task) in xprt_end_transmit() argument
1510 struct rpc_xprt *xprt = task->tk_rqstp->rq_xprt; in xprt_end_transmit()
1513 xprt_release_write(xprt, task); in xprt_end_transmit()
1519 * @snd_task: RPC task that owns the transport lock
1530 struct rpc_task *task = req->rq_task; in xprt_request_transmit() local
1532 int is_retrans = RPC_WAS_SENT(task); in xprt_request_transmit()
1536 if (xprt_request_data_received(task)) { in xprt_request_transmit()
1541 if (rpcauth_xmit_need_reencode(task)) { in xprt_request_transmit()
1545 if (RPC_SIGNALLED(task)) { in xprt_request_transmit()
1558 trace_rpc_xdr_sendto(task, &req->rq_snd_buf); in xprt_request_transmit()
1568 task->tk_client->cl_stats->rpcretrans++; in xprt_request_transmit()
1574 task->tk_flags |= RPC_TASK_SENT; in xprt_request_transmit()
1587 xprt_request_dequeue_transmit(task); in xprt_request_transmit()
1588 rpc_wake_up_queued_task_set_status(&xprt->sending, task, status); in xprt_request_transmit()
1594 * @task: controlling RPC task
1598 * resume, or @task finished transmitting, and detected that it already
1602 xprt_transmit(struct rpc_task *task) in xprt_transmit() argument
1604 struct rpc_rqst *next, *req = task->tk_rqstp; in xprt_transmit()
1617 status = xprt_request_transmit(next, task); in xprt_transmit()
1623 if (!xprt_request_data_received(task) || in xprt_transmit()
1624 test_bit(RPC_TASK_NEED_XMIT, &task->tk_runstate)) in xprt_transmit()
1626 } else if (test_bit(RPC_TASK_NEED_XMIT, &task->tk_runstate)) in xprt_transmit()
1627 task->tk_status = status; in xprt_transmit()
1633 static void xprt_complete_request_init(struct rpc_task *task) in xprt_complete_request_init() argument
1635 if (task->tk_rqstp) in xprt_complete_request_init()
1636 xprt_request_init(task); in xprt_complete_request_init()
1639 void xprt_add_backlog(struct rpc_xprt *xprt, struct rpc_task *task) in xprt_add_backlog() argument
1642 rpc_sleep_on(&xprt->backlog, task, xprt_complete_request_init); in xprt_add_backlog()
1646 static bool __xprt_set_rq(struct rpc_task *task, void *data) in __xprt_set_rq() argument
1650 if (task->tk_rqstp == NULL) { in __xprt_set_rq()
1652 task->tk_rqstp = req; in __xprt_set_rq()
1668 static bool xprt_throttle_congested(struct rpc_xprt *xprt, struct rpc_task *task) in xprt_throttle_congested() argument
1676 xprt_add_backlog(xprt, task); in xprt_throttle_congested()
1712 void xprt_alloc_slot(struct rpc_xprt *xprt, struct rpc_task *task) in xprt_alloc_slot() argument
1729 task->tk_status = -ENOMEM; in xprt_alloc_slot()
1732 xprt_add_backlog(xprt, task); in xprt_alloc_slot()
1736 task->tk_status = -EAGAIN; in xprt_alloc_slot()
1745 task->tk_status = 0; in xprt_alloc_slot()
1746 task->tk_rqstp = req; in xprt_alloc_slot()
1867 xprt_request_init(struct rpc_task *task) in xprt_request_init() argument
1869 struct rpc_xprt *xprt = task->tk_xprt; in xprt_request_init()
1870 struct rpc_rqst *req = task->tk_rqstp; in xprt_request_init()
1872 req->rq_task = task; in xprt_request_init()
1884 xprt_init_majortimeo(task, req); in xprt_request_init()
1890 xprt_do_reserve(struct rpc_xprt *xprt, struct rpc_task *task) in xprt_do_reserve() argument
1892 xprt->ops->alloc_slot(xprt, task); in xprt_do_reserve()
1893 if (task->tk_rqstp != NULL) in xprt_do_reserve()
1894 xprt_request_init(task); in xprt_do_reserve()
1899 * @task: RPC task requesting a slot allocation
1902 * slots are available, place the task on the transport's
1905 void xprt_reserve(struct rpc_task *task) in xprt_reserve() argument
1907 struct rpc_xprt *xprt = task->tk_xprt; in xprt_reserve()
1909 task->tk_status = 0; in xprt_reserve()
1910 if (task->tk_rqstp != NULL) in xprt_reserve()
1913 task->tk_status = -EAGAIN; in xprt_reserve()
1914 if (!xprt_throttle_congested(xprt, task)) in xprt_reserve()
1915 xprt_do_reserve(xprt, task); in xprt_reserve()
1920 * @task: RPC task requesting a slot allocation
1922 * If no more slots are available, place the task on the transport's
1927 void xprt_retry_reserve(struct rpc_task *task) in xprt_retry_reserve() argument
1929 struct rpc_xprt *xprt = task->tk_xprt; in xprt_retry_reserve()
1931 task->tk_status = 0; in xprt_retry_reserve()
1932 if (task->tk_rqstp != NULL) in xprt_retry_reserve()
1935 task->tk_status = -EAGAIN; in xprt_retry_reserve()
1936 xprt_do_reserve(xprt, task); in xprt_retry_reserve()
1941 * @task: task which is finished with the slot
1944 void xprt_release(struct rpc_task *task) in xprt_release() argument
1947 struct rpc_rqst *req = task->tk_rqstp; in xprt_release()
1950 if (task->tk_client) { in xprt_release()
1951 xprt = task->tk_xprt; in xprt_release()
1952 xprt_release_write(xprt, task); in xprt_release()
1958 xprt_request_dequeue_xprt(task); in xprt_release()
1960 xprt->ops->release_xprt(xprt, task); in xprt_release()
1962 xprt->ops->release_request(task); in xprt_release()
1966 xprt->ops->buf_free(task); in xprt_release()
1974 task->tk_rqstp = NULL; in xprt_release()
1983 xprt_init_bc_request(struct rpc_rqst *req, struct rpc_task *task) in xprt_init_bc_request() argument
1987 task->tk_rqstp = req; in xprt_init_bc_request()
1988 req->rq_task = task; in xprt_init_bc_request()