fsverity_file_open(9)

✨ NAME ✨

okay so this is fsverity_file_open, and it lives in the Kernel API Manual — its whole vibe is: prepare to open a verity file. 💖

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🎀 SYNOPSIS 🎀

int fsverity_file_open (struct inode *inode , struct file *filp );

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🌸 ARGUMENTS 🌸

• inode — the inode being opened, literally that inode bestie.
• filp — the struct file being set up. yes ma’am, that one.

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🦋 DESCRIPTION 🦋

When you're opening a verity file, this function denies the open if it's for writing. no writing, not today. 🚫✍️

Otherwise? It sets up the inode's verity info if that hasn't already been done. lowkey housekeeping, highkey important. ✨

When it's combined with fscrypt, this must be called after fscrypt_file_open. fr fr, because otherwise we won't have the key set up to decrypt the verity metadata. and then the vibe check fails, bestie. 😭

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💅 RETURN 💅

0 on success, -errno on failure. that's the whole contract. periodt. 🔥

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👑 SEE ALSO 👑

• Kernel file ./include/linux/fsverity.h
• fsverity_active(9)
• fsverity_get_info(9)

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xoxo, your kernel bestie 💖 — sourced from ./include/linux, dated October 2026, and this page is literally fsverity_file_open(9). 🫶🎀