nfs4_delegation_exists(9)

💅 nfs4_delegation_exists 💅

okay so this is a kernel API manual page, section 9, and yes bestie we are literally in the kernel now 🧚✨ the function is nfs4_delegation_exists and it's from the Kernel API Manual — very demure, very kernel-mode 💜

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✨ NAME ✨

nfs4_delegation_exists — discover if this delegation already exists 🕵️‍♀️ no cap, it's literally just checking if the thing is already there

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🌸 SYNOPSIS 🌸

bool nfs4_delegation_exists (struct nfs4_client *clp , struct nfs4_file
*fp );

it returns a bool and takes two pointers, that's the whole vibe 💫

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🎀 ARGUMENTS 🎀

• clp — a pointer to the nfs4_client we're granting a delegation to 🫶 like, this is the client getting the whole gift
• fp — a pointer to the nfs4_file we're granting a delegation on 🍓 the file that's getting the delegation treatment

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👑 RETURN 👑

on success: true iff an existing delegation is found 💀 note the "iff" — it's giving math-girl precision, and we respect it. if no existing delegation is found, you're not getting true, that's the whole point periodt

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🦋 SEE ALSO 🦋

the kernel file ./fs/nfsd/nfs4state.c and like, a whole friend group of functions, all section 9, all iconic in their own way 🌈:

• 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_stateid_op(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)

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ok that's the whole page bestie, no secrets, no gatekeeping 💖

and that's a wrap!! 🎬 this one came from the source ./fs/nfsd, dated October 2026, and it's manual page nfs4_delegation_exists(9) — ily, go read some kernel source, mwah 💋🌷