nlm4svc_proc_unlock(9)

📦 version 7.3.1, in nixpkgs unstable

💅 nlm4svc_proc_unlock(9) — bestie's guide to the Kernel API Manual 🎀

okay so this is the manual page for nlm4svc_proc_unlock, straight out of the Kernel API Manual, and honestly? it's giving "one job, does it well." no cap. 🦋

✨ NAME ✨

nlm4svc_proc_unlock — UNLOCK: Remove a lock 💅

like, that's it. that's the whole vibe. it removes a lock. iconic behavior.

🌸 SYNOPSIS 🌸

__be32 nlm4svc_proc_unlock (struct svc_rqst *rqstp );

🎀 ARGUMENTS 🎀

  • rqstp — the RPC transaction context, aka the little passport this request carries around 🫶

⭐ RETURN ⭐

  • rpc_success — RPC executed successfully. slay. ✅
  • rpc_drop_reply — Do not send an RPC reply. (yes literally, just don't reply. ghosting, but make it protocol 💀)

🔥 DESCRIPTION 🔥

RPC synopsis, and I'm gonna need you to read it exactly:

nlm4_res NLMPROC4_UNLOCK(nlm4_unlockargs) = 4;

the = 4 is the procedure number, iykyk.

Permissible procedure status codes, bestie, take notes 📝:

  • NLM4_GRANTED — The requested lock was released. we love a clean exit ✨
  • NLM4_DENIED_GRACE_PERIOD — The server has recently restarted and is re-establishing existing locks, and is not yet ready to accept normal service requests. she's healing, give her a minute 😭

and the Linux NLM server implementation is extra and also returns these:

  • NLM4_DENIED_NOLOCKS — A needed resource could not be allocated. the budget did not budget 🙈
  • NLM4_STALE_FH — The request specified an invalid file handle. expired. like that group chat link from 2023 🍓
  • NLM4_FBIG — The request specified a length or offset that exceeds the range supported by the server. too much. overstimulated. 💀
  • NLM4_FAILED — The request failed for an unspecified reason. no explanation, just vibes 🌈
fr fr memorize those codes — they're the whole personality of this procedure 💜

🧚 SEE ALSO 🧚

Kernel file ./fs/lockd/svc4proc.c and the whole friend group:

and that's the page!! 💖 sourced from ./fs/lockd, dated October 2026 — screenshot it, cite it, live by it. mwah 🫶✨

📦 where this page comes from