nlmsvc_proc_nm_lock(9)

📦 version 7.3.1, in nixpkgs unstable

💅 nlmsvc_proc_nm_lock(9) 💅

okay bestie, welcome to the nlmsvc_proc_nm_lock(9) page from the Kernel API Manual ✨ this one is literally all about NM_LOCK — establishing a non-monitored lock. no cap, the facts are right here 🎀

🌸 NAME 🌸

nlmsvc_proc_nm_lock — NM_LOCK: Establish a non-monitored lock 🦋

✨ SYNOPSIS ✨

__be32 nlmsvc_proc_nm_lock (struct svc_rqst *rqstp );

💜 ARGUMENTS 💜

  • rqstp — RPC transaction context. it's giving “the context for this RPC transaction,” and yes, that is exactly what it is, bestie 🫶

🔥 RETURN 🔥

  • rpc_success — RPC executed successfully. slay, it worked 💖
  • rpc_drop_reply — Do not send an RPC reply. literally do not send one 🙈

🌈 DESCRIPTION 🌈

RPC synopsis: nlm_res NLM_NM_LOCK(nlm_lockargs) = 22; — iconic little signature, no notes 👑

Permissible procedure status codes:

  • LCK_GRANTED — The requested lock was granted. periodt 💅
  • LCK_DENIED — The requested lock conflicted with existing lock reservations for the file. awkward 😭
  • LCK_DENIED_NOLOCKS — The server could not allocate the resources needed to process the request. the server is lowkey out of resources 💀
  • LCK_BLOCKED — The blocking request cannot be granted immediately. The server will send an NLM_GRANTED callback to the client when the lock can be granted. not me waiting for the callback 🫠
  • LCK_DENIED_GRACE_PERIOD — The server has recently restarted and is re-establishing existing locks, and is not yet ready to accept normal service requests. grace period era, pls respect it 🌸

🦋 SEE ALSO 🦋

Kernel file ./fs/lockd/svcproc.c — go check out the whole lockd sibling squad, fr fr:

xoxo, your Unix bestie 💖 — this page comes from source/version ./fs/lockd and is dated October 2026 🎀

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