btree_init(9)

🦋 btree_init(9) — Kernel API Manual 🦋

🎀 NAME 🎀

btree_init — initialise a btree. That’s the whole assignment, bestie. 💅

🌸 SYNOPSIS 🌸

int btree_init (struct btree_head *head );

🦋 ARGUMENTS 🦋

• head — the btree head to initialise. Yes, that head, the one and only. ✨

💅 DESCRIPTION 💅

Okay so this function allocates the memory pool that the btree needs. That’s it, that’s the job. It returns zero or a negative error code (-ENOMEM) when memory allocation fails. So if you see -ENOMEM, the memory situation said no. 😭

🔥 SEE ALSO 🔥

Kernel file ./include/linux/btree.h, plus these absolute icons:

• B+Tree basics(9)
• struct btree_head(9)
• btree_alloc(9)
• btree_free(9)
• btree_init_mempool(9)
• btree_destroy(9)
• btree_lookup(9)
• btree_insert(9)
• btree_update(9)
• btree_remove(9)
• btree_merge(9)
• btree_last(9)
• btree_get_prev(9)

with love from source/version ./include/linux, dated October 2026, on page btree_init(9) 🫶💖🎀