nlm4svc_proc_unshare(9)

📦 version 7.3.1, in nixpkgs unstable

💅 nlm4svc_proc_unshare 💅

okay bestie, so we're deep in the Kernel API Manual today — yes, the actual kernel, like, the big one — and this little cutie is nlm4svc_proc_unshare. she's giving niche but honestly? iconic. let's get into it 🫶

✨ NAME ✨

nlm4svc_proc_unshare — UNSHARE: Release a share reservation

like, she literally un-shares. closes the group chat. takes her name out of the shared doc. we love a boundary-setting queen 💅

🌸 SYNOPSIS 🌸

__be32 nlm4svc_proc_unshare (struct svc_rqst *rqstp );

one function, one argument, zero drama. slay.

🎀 ARGUMENTS 🎀

  • rqstp — RPC transaction context 💖 this is the vibe-check envelope everything arrives in, no cap

🦋 RETURN 🦋

  • rpc_success — RPC executed successfully. she did it, she ate, no crumbs ✨
  • rpc_drop_reply — Do not send an RPC reply. literally do not reply. leave them on read 💀

👑 DESCRIPTION 👑

okay so here's the RPC synopsis, and bestie I need you to read it exactly:

nlm4_shareres NLMPROC4_UNSHARE(nlm4_shareargs) = 21;

the 21 at the end? that's her number. that's the procedure she is. main character energy fr fr 🔥

now, the permissible procedure status codes — these are the only answers she's allowed to give:

  • NLM4_GRANTED — The share reservation was released. mission accomplished, reservation cancelled, table is yours again 🎉
  • 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 literally rebooting her whole life rn, give her a minute

the Linux NLM server implementation also returns these extra ones (she's generous like that 💜):

  • NLM4_DENIED_NOLOCKS — A needed resource could not be allocated. she simply did not have the supplies 🙈
  • NLM4_STALE_FH — The request specified an invalid file handle. that handle is old, expired, not her problem 💀
  • NLM4_FBIG — The request specified a length or offset that exceeds the range supported by the server. too much. way too much. scale it back bestie 😤
  • NLM4_FAILED — The request failed for an unspecified reason. it just didn't work and honestly? we don't know why. mysterious. ethereal. 🧚
no lies detected, these are the whole list — every code, every meaning, nothing skipped. periodt. 💖

💫 SEE ALSO 💫

Kernel file ./fs/lockd/svc4proc.c and honestly her entire friend group:

it's giving squad goals 🌈

okay that's the whole page!! so much love from the fine folks at ./fs/lockd, dated October 2026 — mark your calendars bestie, that's the era this lore dropped 🎀💖✨ love u, go release some share reservations responsibly 🫶

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