__kvm_s390_pv_destroy_page(9)

📦 version 7.3.1, in nixpkgs unstable

🌸 __kvm_s390_pv_destroy_page 💅

okay bestie, so this one is from the Kernel API Manual and the function is literally called __kvm_s390_pv_destroy_page — yes it's a mouthful, no we're not shortening it, it's iconic as is 🎀

✨ NAME ✨

__kvm_s390_pv_destroy_page — destroy a guest page 🦋

✨ SYNOPSIS ✨

int __kvm_s390_pv_destroy_page (struct page *page );

like, that's the whole signature. short and slay.

✨ ARGUMENTS ✨

  • page — the page you want to destroy 💀 literally the page, that's it, that's the argument

✨ DESCRIPTION ✨

okay so here's the vibe: the function makes an attempt to destroy the given guest page. that's the main character move ✨

but ngl, things don't always go off without a hitch, so — if that destroy attempt fails, it then makes an attempt to export the page instead. kinda like a little backup plan, we love a fallback 🫶

and if both of those attempts fail? then it just returns an appropriate error. no cap, that's the whole flow. 😭

✨ CONTEXT ✨

⚠️ real talk: this must be called holding the mm lock for gmap->mm. not optional, not a suggestion — hold the lock or don't call it 💅

✨ SEE ALSO ✨

Kernel file ./arch/s390/kvm/s390/s390.h plus these besties:

and that's the page, bestie 🧚 go forth and destroy (guest pages) responsibly 💜

mwah 💖 — this one lives at ./arch/s390/kvm/s390, dated October 2026, and it's __kvm_s390_pv_destroy_page(9) all the way down ⭐

📦 where this page comes from