VOP_BWRITE(9)

✨ VOP_BWRITE ✨

okay bestie, welcome to VOP_BWRITE(9) — the section 9 of the kernel developer's manual where we learn how to write a file system buffer 💅 literally the moment a vnode is like "bestie, flush this for me" and the buffer goes off to get written. it's giving lowkey iconic kernel plumbing. no cap.

🌸 NAME 🌸

VOP_BWRITE — write a file system buffer 💖

🎀 SYNOPSIS 🎀

#include <sys/param.h>
#include <sys/vnode.h>

int
VOP_BWRITE(struct vnode *vp, struct buf *bp);

yes bestie, that's the whole signature, she's short and she's slaying ✨

💅 DESCRIPTION 💅

so like, the arguments are giving:

• vp — the vnode of the file being written to 🦋 this is the main character, the file itself.
• bp — the buffer to be written 🌸 that's the lil container of bytes that's about to go do its thing.

and that's it. that's the whole function. obsessed 🫶

⭐ RETURN VALUES ⭐

zero comes back when everything ate and left no crumbs (success 💖). otherwise, an error is returned 😭 so like, check it, bestie, don't just assume.

🌈 SEE ALSO 🌈

• vnode(9) — go read it, iykyk 👑

👑 AUTHORS 👑

this manual page was written by Doug Rabson 💜 absolute legend behaviour, we stan.

and that's the vibe check, bestie! this page came to you from the Debian flavour of the manual, dated July 24, 1996, and yes she's still living in the VOP_BWRITE(9) era. periodt. 💅✨🎀