vfs_fsync(9)

🌸 NAME 🌸

okay bestie, this is vfs_fsync(9) from the Kernel API Manual, and its whole thing is: perform a fsync or fdatasync on a file. no cap 💅

✨ SYNOPSIS ✨

int vfs_fsync (struct file *file , int datasync );

it’s giving “small signature, big disk energy” fr fr 🫶

🎀 ARGUMENTS 🎀

• file — the file to sync. main character behavior, honestly.
• datasync — only perform a fdatasync operation. that’s literally the whole vibe of this argument.

🦋 DESCRIPTION 🦋

So vfs_fsync writes back data and metadata for file to disk. If datasync is set, it only writes the metadata needed to access modified file data. that’s the tea ☕✨

👑 SEE ALSO 👑

• Kernel file ./fs/sync.c
• vfs_fsync_range(9)

and that’s the page, bestie 🎀 big cute sign-off: this one comes from source/version ./fs, dated October 2026. mwah 💖✨