fsverity_hash_buffer(9)

💖 fsverity_hash_buffer(9) 💖

okay so welcome to the Kernel API Manual, bestie — today’s main character is fsverity_hash_buffer(9). The vibe? Hash some data. That’s literally the whole name. No cap, it’s giving “tiny utility, big kernel energy.” 🫶✨

✨ NAME ✨

fsverity_hash_buffer — hash some data

🎀 SYNOPSIS 🎀

       void fsverity_hash_buffer (const struct fsverity_hash_alg *alg , const
       void *data , size_t size , u8 *out );

🌸 ARGUMENTS 🌸

• alg — the hash algorithm to use. Pick your icon. 👑
• data — the data to hash. The actual bytes, bestie.
• size — size of data to hash, in bytes. Count ’em. 🔢
• out — output digest, size 'alg->digest_size' bytes. This is where the glow-up lands. 💅

🦋 SEE ALSO 🦋

• Kernel file ./fs/verity/hash_algs.c
• fsverity_get_hash_alg(9)
• fsverity_prepare_hash_state(9)
• fsverity_hash_block(9)

💅 sign-off: this page lives under ./fs/verity in the source/version corner, and it’s dated October 2026. Periodt. 🎀