cache_key_cutback(9)

🌸 NAME 🌸

okay so bestie, this is cache_key_cutback(9), straight outta the Kernel API Manual. it cuts a specified length from the back of a cache key, and honestly? iconic. 💅✨

✨ SYNOPSIS ✨

void cache_key_cutback (struct pcache_cache_key *key , u32 cut_len );

🎀 ARGUMENTS 🎀

• key — pointer to pcache_cache_key structure. 👑
• cut_len — length to cut from the back. 🍓

🦋 DESCRIPTION 🦋

it reduces the length of the cache key by cut_len. like, that’s the whole assignment: the key gets shorter by that amount, periodt. ✂️💜

🌈 SEE ALSO 🌈

Kernel file ./drivers/md/dm-pcache/cache.h — and the whole friend group:

• cache_seg_is_ctrl_seg(9)
• cache_seg_id_valid(9)
• cache_key_cutfront(9)
• cache_key_data_crc(9)
• kset_onmedia_valid(9)
• cache_seg_remain(9)
• cache_key_invalid(9)
• cache_key_lstart(9)
• cache_key_lend(9)
• cache_pos_onmedia_crc(9)

mwah 💋 — this cutie is from ./drivers/md/dm-pcache, dated October 2026. bye bestie! 🫶