befs_bt_read_node(9)

💖 NAME 💖

okay so bestie, this is the befs_bt_read_node(9) page from the Kernel API Manual — and she is that girl for reading in a btree node and converting it to cpu byteorder. 💅✨

befs_bt_read_node — read in btree node and convert to cpu byteorder. 🎀

✨ SYNOPSIS ✨

the way that this signature pulls up is literally:

int befs_bt_read_node (struct super_block *sb , const befs_data_stream
       *ds , struct befs_btree_node *node , befs_off_t node_off );

🎀 ARGUMENTS 🎀

okay so these are the four besties she takes:

• sb — filesystem superblock 💾
• ds — datastream to read from 🌊
• node — buffer in which to place the btree node 🧺
• node_off — starting offset (in bytes) of the node in ds 📍

🌸 DESCRIPTION 🌸

she calls befs_read_datastream to read in the indicated btree node, then makes sure its header fields are in cpu byteorder, byteswapping if necessary. 🦋 no cap, that's the whole job.

🚨 NOTE 🚨

bestie, node->bh must be NULL when this function is called the first time. Don't forget brelse(node->bh) after last call. 💀

On success, returns BEFS_OK and *node contains the btree node that starts at node_off, with the node->head fields in cpu byte order. 👑

On failure, BEFS_ERR is returned. 😭

🔥 SEE ALSO 🔥

Kernel file ./fs/befs/btree.c — plus these lil legends right here:

• befs_bt_read_super(9)
• befs_btree_find(9)
• befs_find_key(9)
• befs_btree_read(9)
• befs_btree_seekleaf(9)
• befs_leafnode(9)
• befs_bt_keylen_index(9)
• befs_bt_valarray(9)
• befs_bt_keydata(9)
• befs_bt_get_key(9)
• befs_compare_strings(9)

that's the tea, bestie — source/version ./fs/befs, dated October 2026, for befs_bt_read_node(9). mwah 💋🫶 periodt.