radix_tree_iter_init(9)

NAME 🌸

Okay bestie, welcome to the radix_tree_iter_init(9) page from the Kernel API Manual 💖. This one is literally the function that initializes a radix tree iterator — yes, exactly what the name says, no cap ✨.

radix_tree_iter_init — initialize radix tree iterator 🎀

SYNOPSIS ✨

The signature is giving “short but important,” and it’s exactly this:

void __rcu ** radix_tree_iter_init (struct radix_tree_iter *iter ,
       unsigned long start );

ARGUMENTS 🎀

• iter — pointer to iterator state. That’s the iterator-state pointer, bestie 🫶.
• start — iteration starting index. It’s where the iteration starts, index-wise ⭐.

RETURN 💅

It returns NULL. That’s it — literally NULL, periodt 💀✨.

SEE ALSO 🔥

Kernel file ./include/linux/radix-tree.h and struct radix_tree_iter(9) are linked here, plus the whole squad: Radix-tree synchronization(9), radix_tree_deref_slot(9), radix_tree_deref_slot_protected(9), radix_tree_deref_retry(9), radix_tree_exception(9), radix_tree_next_chunk(9), radix_tree_iter_lookup(9), radix_tree_iter_retry(9), radix_tree_iter_resume(9), radix_tree_chunk_size(9), radix_tree_next_slot(9), radix_tree_for_each_slot(9), radix_tree_for_each_tagged(9) 👑💖.

That’s the whole page, bestie 🌈 — source/version: ./include/linux, date: October 2026, and it’s your radix_tree_iter_init(9) girlie signing off 🫶✨💅