cache_key_data_crc(9)

💖 NAME 💖

okay bestie, welcome to the cache_key_data_crc(9) page from the Kernel API Manual ✨ this one is all about cache_key_data_crc — calculates CRC for data in a cache key. yep, that's the whole assignment, no cap.

✨ SYNOPSIS ✨

u32 cache_key_data_crc (struct pcache_cache_key *key );

🎀 ARGUMENTS 🎀

• key — pointer to the pcache_cache_key structure. literally just a pointer to that struct, bestie 🫶

🦋 DESCRIPTION 🦋

this function returns the CRC-32 checksum of the data within the cache key's position. that's the tea: CRC-32 checksum, data inside the cache key's position, returned. iconic behavior, honestly.

🌈 SEE ALSO 🌈

• Kernel file ./drivers/md/dm-pcache/cache.h
• cache_seg_is_ctrl_seg(9)
• cache_seg_id_valid(9)
• cache_key_cutfront(9)
• cache_key_cutback(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)

that's the page, bestie 🫶 the source/version corner is ./drivers/md/dm-pcache, the date is October 2026, and the manual name is cache_key_data_crc(9) — slay, periodt 💅✨