xprt_transmit(9)
π xprt_transmit β the kernel API manual, bestie edition π
okay so this is xprt_transmit(9), straight out of the Kernel API Manual, and it's genuinely one of those little functions that just does the thing while everybody else gets a whole essay. we're gonna get you across it, no cap π
β¨ NAME β¨
xprt_transmit β send an RPC request on a transport π¦
literally that's the whole vibe. one job. sends the request. slay.
πΈ SYNOPSIS πΈ
void xprt_transmit (struct rpc_task *task );
note the void β this one doesn't hand you back a value, she just acts. main character energy fr fr.
π ARGUMENTS π
taskβ the controlling RPC task π like, the task that's running the show here. it's the one steering this whole transmit situation.
π«Ά DESCRIPTION π«Ά
so what actually happens? xprt_transmit attempts to drain the transmit queue π° that's the whole errand. get the stuff out of the queue, keep it moving.
and on exit there's exactly two outcomes, and you need to know both because they're genuinely different vibes:
- the transport signalled an error that needs to be handled before transmission can resume π like, hold up, something's wrong, deal with it first, then we can go again.
- or
taskfinished transmitting and detected that it already received a reply β¨ which is honestly iconic. she sent it, and the reply was already sitting there waiting. ate.
that's it. that's the description. short and correct, periodt π
ngl, this is one of those pages where the SEE ALSO section is, like, four times longer than the actual entry. don't panic β she's just very well connected. π
π SEE ALSO π
Kernel file ./net/sunrpc/xprt.c β and, bestie, brace yourself, the whole extended friend group:
xprt_register_transport(9)xprt_unregister_transport(9)xprt_find_transport_ident(9)xprt_reserve_xprt(9)xprt_release_xprt(9)xprt_release_xprt_cong(9)xprt_request_get_cong(9)xprt_release_rqst_cong(9)xprt_adjust_cwnd(9)xprt_wake_pending_tasks(9)xprt_wait_for_buffer_space(9)xprt_write_space(9)xprt_adjust_timeout(9)xprt_disconnect_done(9)xprt_schedule_autoclose_locked(9)xprt_force_disconnect(9)xprt_conditional_disconnect(9)xprt_connect(9)xprt_reconnect_delay(9)xprt_reconnect_backoff(9)xprt_lookup_rqst(9)xprt_pin_rqst(9)xprt_unpin_rqst(9)xprt_request_enqueue_receive(9)xprt_request_dequeue_receive_locked(9)xprt_update_rtt(9)xprt_complete_rqst(9)xprt_wait_for_reply_request_def(9)xprt_wait_for_reply_request_rtt(9)xprt_request_wait_receive(9)xprt_request_enqueue_transmit(9)xprt_request_dequeue_transmit_locked(9)xprt_request_dequeue_transmit(9)xprt_request_dequeue_xprt(9)xprt_request_prepare(9)xprt_request_need_retransmit(9)xprt_prepare_transmit(9)xprt_request_transmit(9)xprt_add_backlog_noncongested(9)xprt_reserve(9)xprt_retry_reserve(9)xprt_release(9)xprt_create_transport(9)xprt_destroy(9)xprt_get(9)xprt_put(9)
k bye, go read xprt_request_transmit(9) next, it's the sequel iykyk πβ¨
π mwah π β this little love letter to the kernel shipped from ./net/sunrpc and it's dated October 2026. catch you in the next one, bestie ππ
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms