vringh_need_notify_iotlb(9)

📦 version 7.3.1, in nixpkgs unstable

💅 vringh_need_notify_iotlb(9) — from the Kernel API Manual, bestie

okay so picture this: you're deep in the kernel, you've been slinging descriptors around, and now you gotta ask the big question. this page is literally just that question. it lives in vringh land, it's a function, and yes it returns an int. let's get into it ✨

🌸 NAME 🌸

vringh_need_notify_iotlb — do we have to tell the other side about the used buffers? like, is the notification mandatory or are we just being extra? 👀

🦋 SYNOPSIS 🦋

int vringh_need_notify_iotlb (struct vringh *vrh );

🎀 ARGUMENTS 🎀

  • vrh — the vring, bestie. specifically the vring that you've already called vringh_complete_iotlb on. so like, you did the completing thing, and now this is the follow-up vibe check 🫶

💖 DESCRIPTION 💖

so this function tells you what you need to know. it returns -errno or 0 if we don't need to tell the other side (chill, no notification needed), and 1 if we do (okay go tell them, it's giving urgent 📣).

that's it. that's the whole function. short, sweet, iconic, no cap.

👑 SEE ALSO 👑

kernel file ./drivers/vhost/vringh.c — that's the home base for all of this, iykyk

like, the whole friend group is here. read them all. main character energy all around 🌈

reminder that this page is from ./drivers/vhost, dated October 2026, and it's vringh_need_notify_iotlb(9) — go off, and tell the other side only when we actually need to 💜

bye bestie, slay your vrings 🧚✨

📦 where this page comes from