genradix_ptr(9)

💅 genradix_ptr(9) — Kernel API Manual 💅

okay so welcome to the Kernel API Manual page for genradix_ptr(9), bestie. this one is short, sweet, and very "i have one job and i ate" 💖

✨ NAME ✨

genradix_ptr — get a pointer to a genradix entry. that's the whole assignment, no cap 🫶

🌸 SYNOPSIS 🌸

the signature is literally:

genradix_ptr (_radix , _idx );

🎀 ARGUMENTS 🎀

• _radix — the genradix you're accessing, bestie. this is the one we're poking at ✨
• _idx — the index to fetch. like, the exact lil spot you want 👀

🦋 DESCRIPTION 🦋

okay so genradix_ptr returns a pointer to the entry at _idx — or NULL if that entry does not exist. that's it. that's the vibe. it's giving "pointer or nothing" and honestly? iconic 💅

no entry? NULL. don't act surprised, bestie 😭

👑 SEE ALSO 👑

go peek at these:

• Kernel file ./include/linux/generic-radix-tree.h — Generic radix trees/sparse arrays(9) 🌈
• genradix_init(9)
• genradix_free(9)
• genradix_ptr_alloc(9)
• genradix_iter_init(9)
• genradix_iter_peek(9)
• genradix_iter_peek_prev(9)
• genradix_for_each(9)
• genradix_for_each_reverse(9)
• genradix_prealloc(9)

xoxo, genradix_ptr(9) — source/version: ./include/linux, date: October 2026 💖