rht_grow_above_max(9)

💖 rht_grow_above_max — the manual, but make it make sense 💖

okay so bestie, this page is from the Kernel API Manual (yes, the kernel has its own manual pages, we love a documented king 👑), and it's about one tiny lil function that answers one very specific question. Let's get into it ✨

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✨ NAME ✨

rht_grow_above_max — returns true if table is above maximum 🫶

Like, that's it. That's the whole job. It looks at your table and is like "bestie… you're past the limit" and hands you back a true. Iconic, lowkey.

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🌸 SYNOPSIS 🌸

bool rht_grow_above_max (const struct rhashtable *ht , const struct bucket_table *tbl );

it takes two pointers, both const (respectful, doesn't touch anything, we stan), and gives you back a bool. simple. clean. no cap 💅

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🦋 ARGUMENTS 🦋

• ht — the hash table 🍓 (this one's the whole vibe, the main character)
• tbl — the current table ✨ (the specific table it's checking rn)

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🎀 SEE ALSO 🎀

okay this list is long long, so buckle up bestie, we're going through all of them, no skipping, fr fr 🧚

• the kernel file ./include/linux/rhashtable.h 📁 (this is the source of truth, iykyk)
• struct bucket_table(9) — the actual struct behind tbl, go say hi
• rht_grow_above_75(9)
• rht_shrink_below_30(9)
• rht_grow_above_100(9)
• rht_for_each_from(9)
• rht_for_each(9)
• rht_for_each_entry_from(9)
• rht_for_each_entry(9)
• rht_for_each_entry_safe(9)
• rht_for_each_rcu_from(9)
• rht_for_each_rcu(9)
• rht_for_each_entry_rcu_from(9)
• rht_for_each_entry_rcu(9)
• rhl_for_each_rcu(9)
• rhl_for_each_entry_rcu(9)
• rhashtable_lookup(9)
• rhashtable_lookup_fast(9)
• rhltable_lookup(9)
• rhashtable_insert_fast(9)
• rhltable_insert_key(9)
• rhltable_insert(9)
• rhashtable_lookup_insert_fast(9)
• rhashtable_lookup_get_insert_fast(9)
• rhashtable_lookup_insert_key(9)
• rhashtable_lookup_get_insert_key(9)
• rhashtable_remove_fast(9)
• rhltable_remove(9)
• rhashtable_replace_fast(9)
• rhltable_walk_enter(9)
• rhltable_free_and_destroy(9)

like… that's the whole rhashtable cinematic universe 🌈 every rht_ and rhl_ and rhashtable_ you could ever want. read them all, they're all (9) section, they all ate 💀

real talk though: this page only tells you what rht_grow_above_max returns — true if the table is above maximum. any extra behaviour you're curious about lives in those other pages, not here. don't @ me, i don't make the rules 🙈

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and that's the tea ☕ this one's filed under ./include/linux in the Kernel API Manual, dated October 2026 — so yeah, future-dated lore, very main character energy ⭐ bye bestie, go read rht_grow_above_75(9) next, it's the sequel 💜