xs_udp_send_request(9)

📦 version 7.3.1, in nixpkgs unstable

💅 xs_udp_send_request(9) ✨

okay bestie, so we're in the Kernel API Manual today and this one's about yeeting an RPC request into a UDP socket 🎀

🌸 NAME 🌸

xs_udp_send_request — write an RPC request to a UDP socket ✨

🦋 SYNOPSIS 🦋

int xs_udp_send_request (struct rpc_rqst *req );

💖 ARGUMENTS 💖

  • req — pointer to RPC request 🫶 (that's the thing you're sending, bestie, it's giving main character energy)

👑 DESCRIPTION 👑

So like, here's the vibe check on what you get back — the return values are lowkey the whole plot 💅

  • 0 — The request has been sent ✨ slay, it's out there living its life
  • EAGAIN — The socket was blocked, please call again later to complete the request 😭 not a fail fr fr, just a "hold on, come back in a sec"
  • ENOTCONN — Caller needs to invoke connect logic then call again 🧚 the connection isn't set up yet, so do that first and then re-run this
  • other — Some other error occurred, the request was not sent 💀 nope, it didn't go out
not me stressing the EAGAIN one — it literally means "try again later", do NOT panic 🙈

⭐ SEE ALSO ⭐

Kernel file ./net/sunrpc/xprtsock.c — and the whole friend group here:

that's the whole page bestie, no cap, nothing skipped 💜 and before you go — this lil masterpiece lives in ./net/sunrpc, dated October 2026, with the graceful title xs_udp_send_request(9). iykyk 🍓🎀🦋

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