nfsd_write(9)

📦 version 7.3.1, in nixpkgs unstable

✨ nfsd_write(9) ✨

okay so bestie, welcome to the nfsd_write(9) page from the Kernel API Manual — this is the one that opens a file and writes data to it 💅 like, that's the whole vibe. let's get into it 🫶

🌸 SYNOPSIS 🌸

__be32 nfsd_write (struct svc_rqst *rqstp , struct svc_fh *fhp , loff_t
offset , const struct xdr_buf *payload , unsigned long *cnt , int stable
, __be32 *verf );

literally the whole signature, untouched, no cap ✨

🎀 ARGUMENTS 🎀

  • rqstp — the RPC execution context, like the group chat the request is coming from 💬
  • fhp — file handle of the file you wanna write into; heads up, nfsd_write may modify it 👀
  • offset — byte offset of the start, i.e. where in the file we're dropping the payload 📍
  • payload — an xdr_buf containing the write payload, the actual data bestie 🍓
  • cnt — IN: number of bytes to write, OUT: number of bytes actually written. so it goes in one number and comes out a (possibly different) number, main character energy honestly 🔥
  • stable — an NFS stable_how value 🧚
  • verf — the NFS WRITE verifier ⭐

💖 DESCRIPTION 💖

k so here's the tea: upon return, the caller must invoke fh_put on fhp. not optional, not "if you feel like it", just do it 🙈

Return values: an nfsstat value in network byte order 🌈 (yes, network byte order, don't @ me)

🦋 SEE ALSO 🦋

like, the whole friend group, all linked up, iconic 👑

ok periodt 💅 that's the page. go call fh_put on fhp, drink some water, and slay ✨

sign-off time bestie 🎀 this gem is filed under ./fs/nfsd, dated October 2026, and it's literally the nfsd_write(9) page — catch you in the next manpage, mwah 💖🦋🌸

📦 where this page comes from