rb_next_match(9)

✨ rb_next_match(9) ✨

okay so this is a page straight out of the Kernel API Manual, and it's literally about finding the next matching @key in a @tree 🌳💖 bestie, it's a whole rbtree moment, iykyk.

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🌸 NAME 🌸

rb_next_match — find the next @key in @tree 💅

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🦋 SYNOPSIS 🦋

struct rb_node * rb_next_match (const void *key , struct rb_node *node ,
int (*cmp)(const void *key, const struct rb_node *) );

like, that's the whole signature, no cap — copy it exactly, she's iconic 👑

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🎀 ARGUMENTS 🎀

• key — the key to match 🔑 like that's the whole vibe, you're looking for this one
• node — -- undescribed -- 😭 fr fr the docs just left her hanging, not me being mysterious, that's genuinely what it says
• cmp — the operator defining node order ⚖️ she's the main character who decides who comes before who

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💜 DESCRIPTION 💜

Returns the next node matching key, or NULL. 🫶

that's it, that's the whole thing — next match, or NULL if there isn't one. no extra lore, no secret bonus behaviour, periodt ✨

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🌈 SEE ALSO 🌈

• Kernel file ./tools/include/linux/rbtree.h 📁
• rbtree_postorder_for_each_entry_safe(9)
• rb_add_cached(9)
• rb_add(9)
• rb_find_add(9)
• rb_find(9)
• rb_find_first(9)
• rb_for_each(9)

the whole rbtree friend group honestly, go say hi to all of them 💖

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lowkey a reminder bestie: this one lives under ./tools/include/linux — that's her home address, don't lose it 🏡

and that's the page!! sourced from ./tools/include/linux, dated October 2026 — mwah, take care of her, she's a classic 🎀💜🦋