befs_find_key(9)
β¨ NAME β¨
okay so this is befs_find_key(9) from the Kernel API Manual, and it's literally about searching for a key within a node. bestie, that's the whole vibe. π
πΈ SYNOPSIS πΈ
int befs_find_key (struct super_block *sb , struct befs_btree_node *node
, const char *findkey , befs_off_t * value );
π ARGUMENTS π
sbβ the filesystem superblock. yes bestie, that one.nodeβ the node where we're hunting the key.findkeyβ the keystring we're searching for. no cap.valueβ if the key is found, the value stored with that key gets dropped right here.
π¦ DESCRIPTION π¦
okay so here's the tea: this function finds an exact match if one exists and returns BEFS_BT_MATCH. if there's no match and the node's value array is too small for the key, it returns BEFS_BT_OVERFLOW. and if there's no match but the node should contain this key, it returns BEFS_BT_NOT_FOUND. periodt. π
it uses binary search instead of a linear one, which is giving efficiency queen. slay. π
π SEE ALSO π
Kernel file ./fs/befs/btree.c and the whole friend group: befs_bt_read_super(9), befs_bt_read_node(9), befs_btree_find(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). π«Ά
and that's the whole page, bestie π«Ά source/version spot is ./fs/befs, dated October 2026. mwah π
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms