rhashtable_l...p_insert_key(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 rhashtable_l...p_insert_key(9) 🌸

okay so bestie, this is a page straight out of the Kernel API Manual — yes, the real one, section 9, kernel-space girlies only 💅 — and it's all about rhashtable_lookup_insert_key. Cute name, right? It literally says what it does: look it up, insert it, with an explicit key. Periodt.

✨ NAME ✨

rhashtable_lookup_insert_key — search and insert object to hash table with explicit key 🔍➕

Like, you're doing both things. At once. Main character energy.

🎀 SYNOPSIS 🎀

int rhashtable_lookup_insert_key (struct rhashtable *ht , const void
*key , struct rhash_head *obj , const struct rhashtable_params params );

She returns an int, she takes four things, she's booked and busy 🦋

💖 ARGUMENTS 💖

  • ht — hash table. the vibes container, the whole point 🫶
  • key — key. the key. the thing you're keying on. iconic behavior honestly
  • obj — pointer to hash head inside object. note: inside the object, bestie, it's embedded, don't go allocating a separate one 😭
  • params — hash table parameters. the settings, the config, the little rules of the universe this table lives in ✨

🌈 DESCRIPTION 🌈

Lookups may occur in parallel with hashtable mutations and resizing. no cap — she's built concurrent, so reading and messing with the table can happen at the same time 💀🔥

Will trigger an automatic deferred table resizing if residency in the table grows beyond 70%. that's the threshold, and she will act on it 🙈

Returns zero on success. zero = slay, we love that for you 👑

🦋 SEE ALSO 🦋

okay this list is long, hydrate first 🍓 — from the Kernel file ./include/linux/rhashtable.h:

go read all thirty of them. i'll wait. mwah 💜

source: ./include/linux  ·  date: October 2026  ·  manual: rhashtable_l...p_insert_key(9) — that's the whole page bestie, go forth and insert responsibly 🧚‍♀️⭐💅

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