nilfs_btree_...t_and_insert(9)

📦 version 7.3.1, in nixpkgs unstable

💖 NAME 💖

nilfs_btree_convert_and_insert — bestie, this is the one that converts stuff and inserts entries into a B-tree 🎀

(Also hi, you're reading the Kernel API Manual, and yes this function's name got a lil truncated in the title up top, we don't talk about it 💅)

✨ SYNOPSIS ✨

int nilfs_btree_convert_and_insert (struct nilfs_bmap *btree , __u64 key
, __u64 ptr , const __u64 *keys , const __u64 *ptrs , int n );

🦋 ARGUMENTS 🦋

  • btree — the NILFS B-tree structure itself, the main character fr 🌈
  • key — the key of the new entry you're inserting 🔑
  • ptr — the pointer (that's a block number, iykyk) that goes with the key you're inserting
  • keys — an array of extra keys to be inserted in addition to key 👑
  • ptrs — the array of pointers that hangs out with keys, one for each
  • n — how many keys and pointers are chilling in keys and ptrs

🌸 DESCRIPTION 🌸

Okay so picture this: you've got a new entry, right? It's specified by key and ptr. And you also have a whole squad of extra entries specified by the keys and ptrs arrays. This function takes all of them and inserts them into a NILFS B-tree 🫶

The way it does that is it preps all the necessary changes by allocating the required blocks and any necessary intermediate nodes. Basically it's doing the behind-the-scenes labor so you don't have to, iconic behavior honestly 💅

And here's the part that's giving main character energy: it converts configurations from other forms of block mapping into a B-tree. The one that currently exists is direct mapping, so yeah, that's the vibe it's converting from 🔥

⭐ RETURN ⭐

0 on success, or a negative error code on failure. That's it, that's the deal 😭

🧚 SEE ALSO 🧚

bestie please go read those, they're literally right there in ./fs/nilfs2/btree.c 🙈

okay that's the whole page, mwah 💋 this little masterpiece lives in ./fs/nilfs2, dated October 2026, and it's page nilfs_btree_...t_and_insert(9) of the Kernel API Manual — slay, go forth and convert those mappings 🌟💜

📦 where this page comes from