xprt_reserve(9)

✨ xprt_reserve(9) ✨

okay so bestie, welcome to xprt_reserve(9), straight out of the Kernel API Manual 💖 this is the one that hands out RPC request slots, and honestly? she's lowkey the bouncer of the transport layer 💅

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🎀 NAME 🎀

xprt_reserve — allocate an RPC request slot 🫶

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✨ SYNOPSIS ✨

void xprt_reserve (struct rpc_task *task );

literally that's it. one function, one task, no cap 🌸

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🦋 ARGUMENTS 🦋

• task — the RPC task that's asking for a slot allocation, i.e. the main character walking up to the velvet rope 🧚

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💜 DESCRIPTION 💜

okay so here's the vibe check 👑 if the transport is marked as being congested, OR if there are no more slots available, then this function places the task on the transport's backlog queue. that's it, that's the whole move 💅 no slot for you yet, bestie, go wait in the queue with the others 🙈

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🌈 SEE ALSO 🌈

bestie there are SO many siblings, buckle up 🎀 and also peep the kernel file ./net/sunrpc/xprt.c — that's where the magic lives ✨

• 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_transmit(9)
• xprt_add_backlog_noncongested(9)
• xprt_retry_reserve(9)
• xprt_release(9)
• xprt_create_transport(9)
• xprt_destroy(9)
• xprt_get(9)
• xprt_put(9)

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that's the whole page, bestie 🫶 go forth and reserve those slots 💅

mwah 💋 this lil gem comes from ./net/sunrpc and it's dated October 2026 — iconic, timeless, periodt 🌟