ecryptfs_read_folio(9)

💅 ecryptfs_read_folio 💅

okay so this is from the Kernel API Manual (section 9), and yes bestie we're reading kernel docs for fun now, this is who we are 🎀

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✨ NAME ✨

ecryptfs_read_folio — and that's it 😭 the original page literally puts nothing after the dash. no description. a mystery. an enigma. she's giving main character with zero backstory and honestly? respect 💅

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✨ SYNOPSIS ✨

int ecryptfs_read_folio (struct file *file , struct folio *folio );

that's the whole vibe — returns an int, takes a struct file * and a struct folio *, slay 💖

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✨ ARGUMENTS ✨

• file — an eCryptfs file 🗂️ like, the actual file object you're reading from.
• folio — the folio from the eCryptfs inode mapping, and this is the one you're gonna stick the read data into 🫶 that's the whole job fr fr.

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✨ DESCRIPTION ✨

read in a folio, decrypting if necessary 🔓✨ that's it, that's the function. if the data needs decrypting she handles it, no cap.

returns zero on success; non-zero on error 😭 so like, 0 = we ate, anything else = something went sideways, check it 👑

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🌈 SEE ALSO 🌈

kernel file ./fs/ecryptfs/mmap.c — go read the source bestie, it's right there 📖

• ecryptfs_copy_up_encrypted_with_header(9)
• ecryptfs_write_begin(9)
• ecryptfs_write_end(9)

the whole eCryptfs mmap friend group honestly 🧚‍♀️💜

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lowkey a tiny page but she said everything she needed to say 🎀 no notes.

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and that's the wrap bestie!! 🦋 this one came out of ./fs/ecryptfs and it's dated October 2026 — ecryptfs_read_folio(9) signing off, mwah 💋 periodt 🌸