xprt_reserve_xprt(9)

💅 xprt_reserve_xprt(9) 💅

okay bestie, welcome to the Kernel API Manual page for xprt_reserve_xprt(9) — we're here to talk about serializing write access to transports, and yes it's giving very important kernel business. periodt. ✨

🌟 NAME 🌟

xprt_reserve_xprt — serialize write access to transports

✨ SYNOPSIS ✨

int xprt_reserve_xprt (struct rpc_xprt *xprt , struct rpc_task *task );

🎀 ARGUMENTS 🎀

• xprt — pointer to the target transport. literally the transport we are targeting, no cap.
• task — task that is requesting access to the transport. the one asking for access, bestie.

🦋 DESCRIPTION 🦋

So the whole vibe is: this serializes write access to transports. It prevents the payload of separate requests from getting all mixed together, and it prevents transport connects from colliding with writes. no chaotic collision energy here, thank you. 💅

🚨 No congestion control is provided. like, none at all — this is not a congestion-control situation, bestie.

🌸 SEE ALSO 🌸

Kernel file: ./net/sunrpc/xprt.c

The full reference bestie squad, in the original order:

xprt_register_transport(9), xprt_unregister_transport(9), xprt_find_transport_ident(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_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)

xoxo, your Kernel API Manual bestie 💖 — source/version: ./net/sunrpc; date: October 2026; page: xprt_reserve_xprt(9) ✨