nfs4_preprocess_stateid_op(9)

💅 nfs4_preprocess_stateid_op(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ this one's a little NFSv4 helper that goes and finds the stateid for you before your operation actually does its thing. she's giving backstage-pass energy 🎀

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🌸 NAME 🌸

nfs4_preprocess_stateid_op — find and prep stateid for an operation 🫶

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✨ SYNOPSIS ✨

__be32 nfs4_preprocess_stateid_op (struct svc_rqst *rqstp , struct
       nfsd4_compound_state *cstate , struct svc_fh *fhp , stateid_t *stateid ,
       int flags , struct nfsd_file **nfp , struct nfs4_stid **cstid );

like yes, that's a whole lot of parameters, but we're gonna walk through every single one, no cap 💖

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🦋 ARGUMENTS 🦋

• rqstp — the incoming request from the client, bestie. this is the ask. 💌
• cstate — the current compound state, i.e. the whole vibe of the compound operation happening right now.
• fhp — the filehandle associated with the requested stateid 🔗
• stateid — the stateid, and girl, this one's provided by the client — not us, not anyone else. it comes from them. 💅
• flags — flags describing the type of operation to be done, aka the little mood board for what we're about to do 🎯
• nfp — optional nfsd_file return pointer. and listen: it may be NULL. totally valid. she's optional 🍓
• cstid — optional returned nfs4_stid pointer. also may be NULL. also optional. we love a flexible icon 👑

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🔥 DESCRIPTION 🔥

so basically: given all the info from the client, this function goes and looks up an nfs4_stid for the operation 👀✨

on success, it returns a reference to the nfs4_stid and/or the nfsd_file associated with it. yes, and/or — she's versatile like that 💁‍♀️

friendly reminder that on success you're getting a reference — that's a real thing you now hold, not just a lil peek. don't be out here dropping refs on the floor, bestie 😭

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🧚 SEE ALSO 🧚

Kernel file ./fs/nfsd/nfs4state.c — and honestly?? the whole friend group is here, let's name them all, because they deserve their moment 🌈

• nfs4_delegation_exists(9)
• hash_delegation_locked(9)
• revoke_delegation(9)
• nfs4_replay_free_cache(9)
• nfsd4_revoke_states(9)
• nfsd4_revoke_export_states(9)
• nfsd_slot_shrinker_count(9)
• nfsd_slot_shrinker_scan(9)
• nfsd4_put_client(9)
• nfsd_wait_for_delegreturn(9)
• nfsd_breaker_owns_lease(9)
• nfsd4_deleg_lm_open_conflict(9)
• nfsd4_process_open2(9)
• nfsd4_force_end_grace(9)
• nfs4_preprocess_seqid_op(9)
• nfsd4_release_lockowner(9)
• nfsd4_vet_deleg_time(9)
• nfsd4_deleg_getattr_conflict(9)
• nfsd_get_dir_deleg(9)
• nfsd_update_cmtime_attr(9)

periodt. 💜

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okay that's the whole page, you ate it, I'm obsessed 🫶 this lil drop came to you straight out of ./fs/nfsd, dated October 2026, and it lives in the nfs4_preprocess_stateid_op(9) era of the Kernel API Manual — mwah 💋🌸💖