__ecryptfs_truncate(9)

🌸 NAME 🌸

__ecryptfs_truncate — that’s the function, bestie, and this is its page from the Kernel API Manual. The NAME line is literally __ecryptfs_truncate - and the dash is just there doing its little thing. 💅

✨ SYNOPSIS ✨

int __ecryptfs_truncate (struct dentry *dentry , const struct iattr *ia
);

🎀 ARGUMENTS 🎀

• dentry — The ecryptfs layer dentry. That’s the dentry in question, okay?
• ia — Address of the ecryptfs inode’s attributes. Like, the address of them, not the attributes themselves.

💖 DESCRIPTION 💖

Okay so __ecryptfs_truncate handles truncations that modify the size of the file. Note that the file sizes are interpolated — that’s the word, no cap. When expanding, we are simply writing strings of 0's out. When truncating, we truncate the upper inode and update the lower_ia according to the page index interpolations. It returns zero on success; non-zero otherwise. Slay. 🔥

👀 SEE ALSO 👀

• Kernel file ./fs/ecryptfs/inode.c
• ecryptfs_interpose(9)
• ecryptfs_do_create(9)
• ecryptfs_lookup(9)
• upper_size_to_lower_size(9)
• ecryptfs_truncate(9)
• ecryptfs_setattr(9)

okay bye bestie 🫶 — source/version ./fs/ecryptfs, date October 2026, page __ecryptfs_truncate(9). mwah 💋