nfs4_update_server(9)

📦 version 7.3.1, in nixpkgs unstable

💅 nfs4_update_server — the kernel API manual, bestie edition 🦋

okay so this is nfs4_update_server(9) from the Kernel API Manual, and it's literally about moving an nfs_server to a whole different nfs_client. main character relocation energy ✨

🌸 NAME 🌸

nfs4_update_server — move an nfs_server to a different nfs_client 🫶

⭐ SYNOPSIS ⭐

int nfs4_update_server (struct nfs_server *server , const char *hostname
, struct sockaddr_storage *sap , size_t salen , struct net *net );

int, five args, no cap. let's get into who's who 👑

🎀 ARGUMENTS 🎀

  • server — the struct nfs_server in question; it represents the FSID that's getting moved 💫
  • hostname — the new end-point's hostname, like the new address for the group chat 📮
  • sap — the new end-point's socket address, the actual physical spot ngl 🗺️
  • salen — size of sap, that's it, that's the whole job 📏
  • net — the net namespace, the whole vibe container it lives in 🌐

💖 DESCRIPTION 💖

okay so listen closely because this is the important part 🙈

The nfs_server must be quiescent before this function is invoked. like, it has to be totally chill and not doing anything. periodt.

Either its session is drained (that's NFSv4.1+), or its transport is plugged and drained (that's NFSv4.0). pick your fighter, but it's gotta be quiet either way 💀

Returns zero on success, or a negative errno value. so 0 = slay, negative = not slay 😭

fr fr do not skip the quiescent part, this is a hard requirement, not a suggestion 🚨

🦋 SEE ALSO 🦋

Kernel file ./fs/nfs/nfs4client.c and its little friend group 👯:

🌈 sign-off 🌈

that's the whole page bestie 💅 this one lives in ./fs/nfs and it's dated October 2026 — yes, the future, she's ahead of her time 👑✨🎀

go be quiescent, ily 🫶

📦 where this page comes from