fsverity_fill_zerohash(9)

💅 fsverity_fill_zerohash(9) — Kernel API Manual, bestie edition 🫶

okay so welcome to the Kernel API Manual, and honestly? this one is a lil specific but we're gonna slay it together. it's giving "niche kernel helper that knows exactly what it's about" ✨

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🌸 NAME 🌸

fsverity_fill_zerohash — fill folio with hashes of zero data block

like yes, that's literally the whole vibe: it fills a folio with hashes of a zero data block. no cap. 💖

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✨ SYNOPSIS ✨

void fsverity_fill_zerohash (struct folio *folio , size_t offset ,
       size_t len , struct fsverity_info *vi );

look at that signature bestie, it's iconic. copy it exactly if you're using it, fr fr. 🎀

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🦋 ARGUMENTS 🦋

• folio — folio to fill. that's the main character right there. 👑
• offset — offset in the folio to start. like where the glow-up begins. ✨
• len — length of the range to fill with hashes. the amount of range getting the hash treatment. 🔥
• vi — fsverity info. the fsverity info, periodt. 💅

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🌈 SEE ALSO 🌈

• Kernel file ./fs/verity/pagecache.c
• generic_read_merkle_tree_page(9)
• generic_readahead_merkle_tree(9)

go read those too, iykyk 🧚💜

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mwah 💋 this lil page is brought to you by source ./fs/verity, dated October 2026 — and yes, that's the cute lil sign-off, bestie. 🍓🌸